{"Bibliographic":{ "Title":"Atlas of mean winter temperature departures from the long-term mean over the contiguous United States, 1895-1983.", "Authors":"Karl, Thomas", "Publication date":"1983", "Publisher":"National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, National Climatic Data Center," }, "Administrative":{ "Date created":"02-21-2025", "Language":"English", "Rights":"CC 0", "Size":"0010595012" }, "apiVersion": "2024-07-31-preview", "modelId": "prebuilt-read", "stringIndexType": "textElements", "content": "REFERENCE\nOF COMME\nQC 905 . D33 1983 c.1\nAMERICA\nES OF\nGLERL LIBRARY HISTORICAL CLIMATOLOGY SERIES 3-1\nATLAS OF MEAN WINTER TEMPERATURE DEPARTURES FROM THE LONG-TERM MEAN OVER THE CONTIGUOUS UNITED STATES 1895 - 1983\n1978-79 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n5\n~6\n-8\n-8\n45\u00b0\n-- 20 ---\n4\n20\n-\n--_ 30.\nA\n35\u00b0\n-10\n35\u00b0\n700\n30\u00b0\n30\u00b0\n-2\n25\u00b0\n25\u00b0\n\u0627\u0644\u0639\u0640\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n8.5\u00b0\n80\u00b0\n75\u00b0\nnoaa\nNATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION\n/ NATIONAL ENVIRONMENTAL SATELLITE, DATA, AND INFORMATION SERVICE\n1 NATIONAL CLIMATIC DATA CENTER ASHEVILLE, N.C. Revised 1983\n4.5\u00ba\n-10\n40\u00b0\n40\u00b0\nATLAS OF MEAN WINTER TEMPERATURE DEPARTURES FROM THE LONG-TERM MEAN OVER THE CONTIGUOUS UNITED STATES 1895 - 1983\nGLERL LIBRARY\nNATIONAL CLIMATIC CENTER ASHEVILLE, NORTH CAROLINA Revised 1983\nMENT\nT OF COMMER\nEPART\nUNITED TED STATES OF AME\nAMERICA\nContents\nPreface V\nSeasonal Maps\n1\nMean Winter Temperature Map (1895-1983) 90\nSample Data Map 91\nTime Series Graph for Illinois 92\nReferences 93\niii\nPreface\nThis atlas presents seasonal maps of winter temperature departures from the long-term mean (1895-1983) over the contiguous United States for each of these 89 seasons. The purpose of this publication is to provide the many users of climatic information with a reference containing the longest available series of maps depicting the spatial distribution of winter temperature relative to a long-term record mean, and to present a statistical measure of the degree of unusualness of these temperature departures.\nFor each state, winter mean temperatures were derived by averaging together the monthly mean tempera- tures for December, January, and February over each season from 1894-95 to 1982-83. The monthly mean values were derived by areally weighting state climatic division values from 1931 to 1983 (see Diaz and Quayle, 1978, and U.S. Department of Commerce, 1978). Prior to 1931 state mean temperatures were obtained from the monthly climatological reports for each state issued by the Climatological Service of the U.S. Weather Bureau. Data from the period prior to 1931 were adjusted to the areally weighted series by virtue of an 18-year overlap in the two series (1931-48). Each calendar month was adjusted by the difference between the corresponding 18-year means. Standardized departures (seasonal values minus the long-term mean divided by the standard deviation) are included as an aid in assessing the relative magnitude of the seasonal departures compared to the natural variability of the area. Divisional data from 1931 and state averages from the start of record are available on request from the National Climatic Data Center, Asheville, NC.\nThe reader should keep in mind the limitations in these data. Averaging is done over a wide range of spatial scales and implicitly over a wide range of local climates (for example, Texas and California). The magnitude of the departures are thus representative of spatial scales on the order of 10- - 10 km. 2\n3 Further- more, averaging over three-month's time often masks the very large changes that can occur within a single season, or the magnitude of extreme anomalies at the monthly time scale (see Diaz, 1979). The actual data\nV\nvalues for the 1931-32 season are presented on page 91 to give the reader an example of the consistency and spatial coherence of the data.\nAnalysis of the spatial distribution of winter anomalies over a long period provides some perspective on the mode of variation of winter temperature over the contiguous United States. An important use of this information, for example, would be in assessing the potential heating fuel demand in various regions of the contiguous states if a particular pattern were to occur in the future. A time series of the winter depar- tures for Illinois is presented on page 92 as an example of the alternative representation in the time domain of the information that is contained in these maps.\nMany interesting features can be noted from these maps; for instance, high interannual variability occurs in the years preceding the 1920's. A major change in the departure patterns occurs thereafter and the frequency of below average seasonal temperatures drops off markedly until the mid-1950's. During this period, the decade of the 1940's shows remarkable quiescence by comparison with other decades, such as the 1910's and 1930's, which were periods with high winter season temperature variability. The 1970's decade had the remarkable occurrence of three of the most severe winters on record and the occurrence, in 1978-79, of below-average temperatures over all the contiguous United States.\nThe first issue of this publication was compiled by Henry F. Diaz. This revised issue was effected by Thomas R. Karl and Walter James Koss. Robert H. Courtney expertly drafted the figures for the first issue, and G. Robert Ford provided graphics support for this revised issue.\nr\nvi\n1894-95\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0 -1\n1\n4.5\u00b0\n0\n4.50\n-1\n0\n-2\n-- 10-\n40\u00b0\n-1\n-2\n-3\n\u00a523\n-- 10-\n2-4\n35\u00b0\n35\u00b0\n1\n70\u00b0\n-10)\n-10\n-3\n-2\n-1\n30\u00b0\n300\n-1\n-2\n-3\n-3\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n-2\n-2\n-1\n'-1\n-2\n40\u00b0\n-5\n-4\n1\n1895-96 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n4\n3\n4\n3\n45\u00b0\n4.5\u00b0\n.10\n3\n2\n1\n2\n40\u00b0\n4\nO\n0\n35\u00b0\n35\u00b0\n70\u00b0\n1\n30\u00b0\n1\n30\u00b0\n2 1\n-2\n0\n-10\n25\u00b0\n25\u00ba\n85\u00b0\n80\u00b0\n75\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n2\n1\n40\u00b0\n2\n1896-97 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n3\n2\n1 0\n0 1\n2\n3\n4.50\n2\n2\n1\n2\n7\n40\u00b0\n40\u00b0\n-1\n35\u00b0\n3.5\u00b0\n70\u00b0\n1\n30\u00b0\n30\u00b0\n1 0\n-1\n25\u00b0\n25\u00b0\n50\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n95\u00b0\n100\u00b0\n105\u00b0\n110\u00b0\n115\u00b0\n3\n3\n4.5\u00ba\n10.\nO\n1897-98\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n3\n3\n3\n45\u00b0\n4.50\n2\n2\n40\u00b0 O\n-10\n-\n1\n-3\n1\n35\u00b0\n3.5\u00b0\n70\u00b0\n-1\n30\u00b0\n300\n0\n.\n50\n25\u00b0\n25\u00b0\n0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n4\n3\n400\n2.\nL\n1898-99\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-1 -2-3 -4\n45\u00ba\n45\u00b0\n-3\n-10\n-1\n0\n40\u00b0\n-5\n40\u00b0\n-6\n-2\n-20\n35\u00b0\n35\u00b0\n70\u00b0\n-1g\n-6'\n0\n30\u00b0\n-1\n30\u00b0\n-2\n-3\n-5\n-4\n-3\n-4\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n5\n1\n-10'\n-20_\n-2\n-4\n1899-1900\nDeparture isopleths (\u00baF). -- - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n3 1g\n2\n-\n1\n.\n45\u00b0\n3\n45\u00b0\n3\n2\n40\u00b0\n40\u00b0\n0\n35\u00b0\n35\u00b0\n-2\n70\u00b0\n3\n30\u00b0\n30\u00b0\n3\n2\n1\n10\n-1\n-2\n-26\n2.50\n0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n6\n-2\n-1\n1900-01 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n45\u00b0\n45\u00b0\n0\n-2\n-3.\n1\n-1\n40\u00b0\n40\u00b0\n1g-\n2\n-2\n35\u00b0\n35\u00b0\n70\u00b0\n1.\n10\n2\n3\n30\u00b0\n30\u00b0\n3\n2\n52\n0\n25\u00b0\n1\n25\u00b0\n52\n80\u00b0\n75\u00b0\n8.5\u00b0\n90\u00b0\n95\u00b0\n100\u00b0\n105\u00b0\n115\u00b0\n110\u00b0\n1\n2\n1\n-2\n7\n1901-02 Departure isopleths (\u00baF). - - - Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n45\u00ba\n45\u00b0\n2\n0\n2\n1\n2\n-1\n400\n-2\n-\n-- 10_\n-3\n1\n35\u00b0\n-5\n3.5\u00b0\n700\n1\n-4\n2\n1g\n30\u00b0\n1\n30\u00b0\n2\n1\n1\n-10\n1\n53\n-1\n-3\n-4\n25\u00b0\n-2\n25\u00b0\n52\n80\u00b0\n75\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n8\n.\n40\u00b0\n-\n1\u01a1\n0\n1902-03\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00ba\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-1\n-2\n-3\n-3-2-1\n45\u00b0\n45\u00b0\n0\n0\n40\u00b0\n-10\n400\n1\n1\n0\n-3\n1\n3.5\u00b0\n1\n-10\n3.5\u00b0\n70\u00b0\n1\n-1\n30\u00b0\n-1\n0\n-1\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n9\n30\u00b0\n1903-04\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n0-1-2 -4-5 -6\n-7\n45\u00b0\n1\n4.50\n-6.\n-3\n-20\n40\u00b0\n40\u00b0\n1\n_6\n.20\n3.5\u00b0\n35\u00b0\n70\u00b0\n-5\n2\n30\u00b0\n4\n30\u00b0\n2\n:- 2\n0\n-1\n-3\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n10\n-6\n-10_\n-\n1\n1904-05 Departure isopleths (\u00baF). - - - Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1 0\n-1\n45\u00b0\n45\u00ba\n-2\n-3\n-6\n2\n>10\n40\u00b0\n40\u00b0\n3\n-20\n--\n-\n6\n10\n1\n-6\n-20\n35\u00b0\n35\u00b0\n-7\n70\u00b0\n-6\n3\n30\u00b0\n30\u00b0\n2\n1\n-20\n1\n-2\n1\n-5\n-4\n-4\n-3\n-36\n25\u00b0\n-10\n25\u00b0\n52\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n100\u00b0\n95\u00b0\n105\u00b0\n110\u00b0\n115\u00b0\n11\n-5\n1\n1905-06\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n3\n4.5\u00ba\n2\n45\u00b0\n4\n200\n4\n4\n10\n40\u00b0\n400\n-2-1\n2\n35\u00b0\n1\n35\u00b0\n70\u00b0\n0\n2\n1\n30\u00b0\n1\n30\u00b0\n0\n-~ 10\n-1\n-2\n-2\n250\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n12\n.\n.\n12\n1906-07\nDeparture isopleths (\u00baF) . - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-2\n1\n-3\n-4\n-4 -3 2\n45\u00b0\n11\n45\u00b0\n-4\n2\n- 1\n-10\n-4\n40\u00b0\n-3\n&-10-\n0\n3.5\u00b0\n35\u00b0\n10.\n70\u00b0\n20\n2\n30\u00b0\n3\n30\u00b0\n4\n5\n3\n25\u00b0\n250\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n13\n-2\n40\u00b0\n-2\n-1\n1\n0\n1907-08\nDeparture isopleths (\u00baF). -- - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n3\n4\n5\n6\n6\n5\n4\n3\n2\n2\n0\n2\n40\u00b0\n0\n1\n400\n0\n-1\n3.5\u00b0\n35\u00b0\n70\u00b0\n2\n30\u00b0\n-2\n30\u00b0\n2\n-\n-1 -- 2\n52\n0\n-2\n1\n25\u00b0\n250\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n14\n4.50\n45\u00b0\n-\n1908-09 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n45\u00ba\n1\n45\u00b0\n2\n1\n2\n2\n40\u00b0\n10\n40\u00b0\n0\n3.5\u00b0\n3.5\u00b0\n70\u00b0\n1\n30\u00b0\n30\u00b0\n2 3\n3\n3\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00ba\n80\u00b0\n75\u00b0\n15\n10.\n4\n-1 0\n1\n1909-10\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-4\n45\u00b0\n45\u00ba\n-2\n0\n-4\n-5\n3\n-\n40\u00b0\n0\n40\u00b0\n-1\n-5\n-10\n2\n35\u00b0\n35\u00b0\n70\u00b0\n-10_\n-2\n30\u00b0\n30\u00b0\n52\n2\n25\u00b0\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n-4\n-3\n- 1\n2\n_20\n-\n-20\n.\n16\n1910-11 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-1\n-2\n-3\n-3 -2\n-1\n45\u00b0\n1\n40\u00b0\n400\np-1\n35\u00b0\n3.5\u00b0\n0\n-- 10 --\n1\n30\u00b0\n30\u00b0\n13\n4\n3-2\n1\n13\n5\n4\n59\n25\u00b0\nO\n250\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n17\n-\n-2\n45\u00b0\n0\n70\u00b0\n1\n2\n5\n1911-12\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n0 -1 -2\n-3\n-4\n45\u00b0\n-5\n450\n5\n-1\n3000\n0\n40\u00b0\n3\n4\n2\n1\n-10 1\n1\n35\u00b0\n35\u00b0\n70\u00b0\n0\n-1\n30\u00b0\n-2\n-3\n-2\n2.5\u00b0\n25\u00b0\n-3\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n18\n-2\n40\u00b0\n1\n1\n300\n1912-13 Departure isopleths (\u00baF). --- - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-2\n-1\n45\u00b0\n45\u00ba\n0\n4\n-2\n1\n2\n40\u00b0\n3\n5\n40\u00b0\n-\n/\n-20\n1g\n35\u00ba\n)\n35\u00b0\n-\n70\u00b0\n-\n-2\n-3\n30\u00b0\n1\n-10\n30\u00b0\n-4\n--\n3\n3\n0\n15%\n25\u00b0\n4\n25\u00b0\n50\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n19\n1\n-4\n2\n-3\n1\n-1\n-2\n1913-14\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\n2\n1\n45\u00b0\n4.5\u00ba\n2\n.\n-1\n0\n0\n40\u00b0\n400\n35\u00b0\n3.50\n70\u00b0\n30\u00b0\n0\n300\n53\n0\n25\u00b0\n5\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n20\n1914-15 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1-\n0\n45\u00b0\n4.50\n2\n2\n40\u00b0\n-10\n2\n40\u00b0\n-- 10\n1\n/\n/\n0\n35\u00b0\n35\u00b0\n70\u00b0\n/\n1\n-2\n30\u00b0\n1\n30\u00b0\n-2\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n21\n1915-16 Departure isopleths (\u00baF). - - - Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-4 -5 -6\n-4\n4.5\u00b0\n-2\n-1\n45\u00b0\n-3\n0\n2\n-10-\n40\u00b0\n40\u00b0\n-1\n1\n35\u00ba\n3.5\u00b0\n700\n-10-\n30\u00ba\n1\n2\n3\n1\n25\u00b0\n25\u00b0\n52\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n22\n115\u00b0\n110\u00b0\n-6\n-5 -4\n-3\n-\n0\n30\u00b0\n3\n1916-17 Departure isopleths (\u00baF). - -- Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-3 -4\n-5\n-6 -7 -8\n-9\n45\u00b0\n-3\n4.5\u00ba\n-7\n6\n.52\n4\n40\u00b0\n-37-2\n400\n-6\n-1\n35\u00ba\n35\u00b0\n70\u00b0\n1\n30\u00b0\n-3\n30\u00b0\n-2\n-1\n0\n1\n2\n25\u00b0\n5\n25\u00b0\n52\n85\u00b0\n80\u00b0\n75\u00b0\n90\u00b0\n100\u00b0\n95\u00b0\n105\u00b0\n115\u00b0\n110\u00b0\n23\n1917-18\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n31\n2 10 -1 -2-3-4-5-6\n4.5\u00ba\n4.5\u00b0\n4\n-8\n400/3\n40\u00b0\n-10+\n-7\n-6\n35\u00b0\n1\n35\u00b0\n2\n70\u00b0\n1\n-4\n3\n30\u00b0\n1\n-10\n1\n-2\n12\n-2\n0\n-1\nSI\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n24\n1\n30\u00b0\n-\n-20\n-5\n-\n1918-19 Departure isopleths (\u00b0F). - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n2 3 4\n45\u00b0\n45\u00b0\nO\n4\n6\n3\n5\n40\u00b0\n40\u00b0\n35\u00b0\n2\n35\u00b0\n102\n70\u00b0\n1\n.1\n-2 - 3 _4_5\n-5\n1\n-4\n-3\nV-2\nO\n25\u00b0\n3-1\n25\u00b0\n5\n115\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n25\n30\u00b0\n30\u00b0\n0\nSI\n5\n1919-20\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-2\n-1\n-2\n-2 -3\n-4\n-5\n-5\n45\u00b0\n-6\n-7\nO\n-20\n6\n1\n40\u00b0\n2\n40\u00b0\n5\n-4\n-10\n-3\n35\u00b0\n3.5\u00ba\n70\u00b0\n-2\n-1\n2\n30\u00b0\n300\n2\n2\n14\n0\n3\n0\nO\n25\u00b0\n250\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n26\n-1\n45\u00b0\n-\n1920-21 Departure isopleths (OF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n3 4 5 6\n45\u00b0\n4.5\u00b0\n2\n3\n5\n40\u00b0\n40\u00b0\n1\n4\n10i\n2\n35\u00b0\n3.5\u00b0\n70\u00b0\n0\n30\u00b0\n30\u00b0\n0 1\n2\n2\n25\u00b0\n25\u00b0\n52\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n100\u00b0\n95\u00b0\n105\u00b0\n110\u00b0\n115\u00b0\n27\n1921-22\nDeparture isopleths (\u00baF). --- Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-5\n-5 -4 -3\n-2\n45\u00ba\n4.50\n\u00cc\n4\n-1\n-\n-m-\n-2\n2\n40\u00b0\n40\u00b0\n-1\n-- 10\n0\n35\u00b0\n3.50\n70\u00b0\n2\n10\n3\n300\n30\u00b0\n0\n1\n2\n12\n3\n150\n25\u00ba\n25\u00b0\n52\n115\u00b0\n110\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n28\n.\n3\n1922-23 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-3\n-\n--- 10\n45\u00b0\n-2\n45\u00b0\n-5\n-1\n-3\n40\u00b0\n10\n-4\n40\u00b0\n-2\n-1\n1\n0\n35\u00b0\n1\n35\u00b0\n70\u00b0\n1\n2\n1\n/\n30\u00b0\n30\u00b0\n2\n3.\n-5\n4\n52\n3\n5\n25\u00b0\n25\u00b0\n50\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n29\nO\n---- 10_\n4\n1923-24\n- Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n3\n4\n4\n3\n2\n45\u00ba\n2\n\u00b710\n2\n40\u00b0\n40\u00b0\nN\n3.50\n35\u00b0\n70\u00b0\n1\n2\n1\n30\u00b0\n30\u00b0\n-1\n-\n1\n2\n0\n-1\n25\u00b0\n5\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n30\n45\u00b0\n.\n0\n35\n1924-25 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00ba\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n45\u00b0\n-2\n450\n-1\n40\u00b0\nO\n1\n400\n1\n1\n35\u00ba\n35\u00b0\n70\u00b0\n1\n0\n30\u00b0\n-1\n30\u00b0\n-1\n1g\n3\n53\n2\n25\u00b0\n1\n5\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n31\nC\n-1\n2\n1925-26\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00ba\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n5\n6\n7\n8\n45\u00b0\n4\n45\u00ba\n20\n-1\n3\n400\n~10.\n0\n400\n-\n0\n0\n35\u00ba\n35\u00b0\n2\n70\u00b0\n1\n0\n30\u00b0\n30\u00b0\n0\n-1\n-1\n25\u00b0\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n32\n/\n8 7 6 54 3 2\n1\n-1\n1926-27\nDeparture isopleths (\u00baF). --- Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n45\u00b0\n4.50\n0\n40\u00b0\n40\u00b0\n0\n1\n35\u00b0\n35\u00b0\n23\n1\n4\n30\u00b0\n2\n30\u00b0\n20\n6\n5\n$3\n6\n4\n5\n25\u00b0\n25\u00b0\n3\n4\n5\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n33\nO\n2\n70\u00b0\n3\n1927-28\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-2 -1\n0\n45\u00b0\n45\u00b0\n-1\n2\n2\nO\n40\u00b0\n40\u00b0\n35\u00b0\n1\n35\u00b0\n700\n0\n0\n30\u00b0\n30\u00b0\n-1\n-1\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n34\n-\n1928-29 Departure isopleths (\u00baF). --- Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n=7\n-\n-6\n4.5\u00b0\n2\n-5\n4\n-4\n40\u00b0\n40\u00b0\n-3\n===:- 20\n1\n35\u00b0\n0\n35\u00b0\n70\u00b0\n1\n1\n30\u00b0\n30\u00b0\n-10-\n1-2\n1\n-1\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n35\n-7 -6 -5\n4.50\n3\n1929-30 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-3\n-2 -1 0\n-~ 10\n45\u00b0\n-2\n45\u00b0\n1 0\n-1\n0\n2\n1\n40\u00b0\n2\n35\u00ba\n3.5\u00b0\n70\u00b0\n3\n2\n30\u00b0\n30\u00b0\n1\n0\n0\n25\u00b0\n25\u00b0\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n100\u00b0\n95\u00b0\n105\u00b0\n110\u00b0\n115\u00b0\n36\n40\u00b0\n1930-31 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n3 4 5 6 7 8 9 10 11\n1\n10 9\n1\n8\n7\n6\n5\n40\u00b0\n3\n40\u00b0\n4\n20\n10\n35\u00ba\n0\n3.5\u00b0\n70\u00b0\n-1\n0\n30\u00b0\n-1\n30\u00b0\n-10'\n-2\n52\n25\u00b0\n-3\n25\u00b0\n52\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n95\u00b0\n100\u00b0\n105\u00b0\n115\u00b0\n110\u00b0\n37\n45\u00ba\n11\n45\u00ba\n1931-32 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-2 -1 0 1\n-3\n2 3 4\n5\n6\n45\u00ba\n4.50\n5\n6\n7\n-4\n40\u00b0\n-10\n40\u00b0\n-5\n20\n8\n10\n1\n35\u00b0\n35\u00b0\n70\u00b0\n9\n30\u00b0\n30\u00b0\n-3\n-2 -1\n2\n6\n7\n8\n25\u00b0\n5\n25\u00b0\n4\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n38\n1\n3\n5\n20\n1\n1932-33 Departure isopleths (\u00baF). - - - Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-3\n-2 -1\n0\n45\u00b0\n-4\n450\n=10.\n2\n6\n40\u00b0\n3\n-8\n4\n10\n3.5\u00b0\n1\n35\u00b0\n1\n70\u00b0\n-- 6\n-5\n30\u00b0\n300\n-5\n-\n-\n4\n-2\n-3\n2\n4\n25\u00b0\n-1\n0\n25\u00b0\n52\n80\u00b0\n75\u00b0\n90\u00b0\n85\u00b0\n95\u00b0\n100\u00b0\n105\u00b0\n115\u00b0\n110\u00b0\n39\n-- 201\n20,\n400\n1\n5\n1933-34\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n5\n6\n6\n5\n4\n3\n2\n45\u00b0\n4.5\u00b0\n1\n'0-1\n2\n8\n200\n-5\n3\n-3-\n10\n40\u00b0\n-4\n2\n1\n1\n-2\n-\n-1\n35\u00b0\n--- 20'\n35\u00b0\n70\u00b0\n1\n30\u00b0\n300\n3\n3\n2\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n40\n.\n-6\n-20\n-in-Im 5\n1\n400\n-10\n/\n2\n1934-35 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n3\n45\u00b0\n1\n45\u00b0\nO\n-10\n-3\n-2\n40\u00b0\n1\n40\u00b0\n1\n3.5\u00b0\n0\n3.5\u00b0\n70\u00b0\n30\u00b0\n1\n1\n30\u00b0\n52\nO\n25\u00b0\n25\u00b0\n52\n115\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n41\n3\n2\n1\n1\n1935-36\nDeparture isopleths (\u00baF). - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-4\n-3\n-5 -6\n4.5\u00b0\n-9\n8\n4.50\n-2\n-6\n'-12\n4,\n-2\n-10\n-9\n-111\n-3\n8\n-10\n1\n-5\n35\u00b0\n35\u00b0\n70\u00b0\n30\u00b0\n30\u00b0\n-4\n0\n=10 -\n52\n-3\n25\u00b0\n-2\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00ba\n75\u00b0\n42\n7\n~7\n40\u00b0\n40\u00b0\n-- 20-\n-5\n1936-37 Departure isopleths (\u00baF). -\nStandardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-6 -7 -8\n1\n-20\n45\u00b0\n6\n2/10\n20\n2\n-5\n-20\n3\n40\u00b0\n5\n40\u00b0\n-10\n25\n35\u00b0\n35\u00b0\n10\n1\n70\u00b0\n30\u00b0\n-4\n30\u00b0\n-3\n-2\n0\n3\n4\n25\u00b0\n2\n1\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n43\n-7 -6 -5\n1-4\n-3\n4.5\u00ba\n20\n1\n5\n-1\n1937-38\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n0\n45\u00b0\n0\n4.50\n0\n40\u00b0\n1\n40\u00b0\n35\u00b0\n35\u00b0\n-3\n70\u00b0\n.\n1\n30\u00b0\n2\n30\u00b0\n2\n1\n25\u00ba\n5\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n44\n-\n1938-39 Departure isopleths (\u00baF). - --\n- Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n45\u00b0\n45\u00b0\n0\n1\n2\n40\u00b0\n40\u00b0\n10\n35\u00b0\n35\u00b0\n70\u00b0\n1\n1\n3\n1\n-2\n1\n30\u00b0\n30\u00b0\n-2\n53\n-1\n2\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n45\n1\n3\n0\n1\n1939-40 Departure isopleths (\u00b0F). - - - Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n3\n3\n4\n45\u00b0\n4\n4.50\n10.\n3\n+\n2\n-1\n3\n5\n0\n40\u00b0\n10\n--- 10.\n-3\n3.5\u00b0\n3.5\u00b0\n700\n1\n-4\n30\u00b0\n30\u00b0\n2\n-1\n.\n0\n-1 -2\n-4\n-\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n46\n40\u00b0\n5-2\n-3\n1940-41 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n3\n4\n4.5\u00ba\n3\n0\n45\u00b0\n1\n-\n40\u00b0\n1\n.1g\n40\u00b0\n35\u00b0\n35\u00b0\n70\u00b0\n1\n1\n30\u00b0\n30\u00b0\n2\n1\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n4\n1\n2\n47\n1941-42 Departure isopleths (\u00baF). - - - Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0\n1\n2345 6 7 8\n7\n45\u00b0\n4.50\n6\n5\n3\n40\u00b0\n40\u00b0\n0\n1g-\n35\u00b0\n3.50\n700\n30\u00b0\n300\n1\n25\u00b0\n250\n52\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n95\u00b0\n100\u00b0\n110\u00b0\n105\u00b0\n115\u00b0\n48\n1942-43 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-2\n45\u00b0\n-2\nO\n2\n40\u00b0\n40\u00b0\n1\n1\n0\n35\u00b0\n3.50\n70\u00b0\n2\n1\n30\u00b0\n30\u00b0\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n49\n45\u00b0\n3\n2\n1943-44 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0 1 234 5 6 7\n45\u00b0\n4.5\u00b0\n6\n5\n-1\n0\n2\n40\u00b0\n40\u00b0\n-10\n0\n35\u00b0\n3.5\u00b0\n70\u00b0\n1\n30\u00b0\n30\u00b0\n-1\n-1\n2\n2\n1\n25\u00b0\n5\n25\u00b0\n0\n52\n85\u00b0\n80\u00b0\n75\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n50\n1944-45 Departure isopleths (\u00baF). - - - Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\nw\n45\u00b0\n450\n1\n-3 -2\n40\u00b0\n-2\n3\n-1g\n-2\n35\u00b0\n3.5\u00b0\n70\u00b0\n-1\n30\u00b0\n30\u00b0\n0\n25\u00b0\n250\n52\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n100\u00b0\n95\u00b0\n105\u00b0\n110\u00b0\n115\u00b0\n51\n3\n2\n40\u00b0\n1945-46 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n2\n2 10 -1\n45\u00b0\n0\n45\u00b0\n40\u00b0\n-2\n400\n1\n35\u00b0\n3.5\u00b0\n70\u00b0\n30\u00b0\n30\u00b0\n-1\n25\u00b0\n25\u00b0\n52\n80\u00b0\n75\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n52\n1946-47 Departure isopleths (\u00baF). - - - Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0\n1\n2\n45\u00b0\n4.50\n40\u00b0\n2\n40\u00b0\n13\n35\u00b0\n35\u00b0\n70\u00b0\n1\n30\u00b0\n30\u00b0\n1\n2\n3\n-1\n-1\n25\u00b0\n5\n25\u00b0\n50\n80\u00b0\n75\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n53\nO\n1947-48 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n4.5\u00b0\n45\u00b0\n.4\n-4\n40\u00b0\n40\u00b0\n-10\n-3\nN-2\n35\u00b0\n35\u00b0\n700\n-10-\n1\n- 1\n30\u00b0\n30\u00b0\n-2\n-2\n0\n25\u00b0\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n54\n0 -1 -2\n1948-49 Departure isopleths (\u00baF). - - - Standardized departures.\n-\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-9\n-8\n-10\n-9-8-7-6 -5-4-3-2\n45\u00b0\nO\n->\n1\n4\n4\n-30\n5\n40\u00b0\n5\nI\n6\n10\n35\u00b0\n-\n35\u00b0\n20\n70\u00b0\n-6\n-5\n30\u00b0\n-4\n30\u00b0\n-3\n-2\n0\n3\n4\n5\n25\u00b0\n2\n5\n25\u00b0\n1\n52\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n100\u00b0\n95\u00b0\n105\u00b0\n110\u00b0\n115\u00b0\n55\n-1\n45\u00b0\n1\n40\u00b0\n5\n1949-50\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-7\n6\n1 1-1-\n-- 20\n45\u00ba\n.5\n45\u00b0\n4\n-2 -1.\n0\n-10\n10\n2\n-3\n3\n3\n40\u00b0\nA\n4\n5\n35\u00b0\n-23\n35\u00b0\n10\n70\u00b0\n-1\n20\n0\n30\u00b0\n1\n12\n3.\n4\n7\n6\n25\u00b0\n5\n25\u00b0\n5\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n8.5\u00b0\n80\u00b0\n75\u00b0\n56\n.\n-7-6-5_4_3\n.\n40\u00b0\n7\n6\n1\n/\n30\u00b0\n1950-51 Departure isopleths (\u00baF). --- Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0\n1\n45\u00b0\n45\u00b0\n3\n2\nA\n40\u00b0\n3\n40\u00b0\n-2\n1\n.2\n0\n35\u00b0\n70\u00b0\n30\u00b0\n30\u00b0\n1\n-1\n53\n0\n25\u00b0\n25\u00b0\n52\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n100\u00b0\n95\u00b0\n105\u00b0\n110\u00b0\n115\u00b0\n57\n35\u00b0\n-1 -2\n1951-52\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-4\n-4 -3\n-2\n-1\n0\n1\n45\u00b0\n-3,\n4.5\u00b0\n3\n-\n2\n40\u00b0\n40\u00b0\n1\n-2\n-10\n-\n35\u00b0\n35\u00b0\n70\u00b0\n30\u00b0\n-1\n30\u00b0\n1\n0\n2\n3\n5\n4\n4\n3\n25\u00b0\n5\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n58\n20\n1952-53 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n4\n5\n6\n45\u00b0\n5\n3\n6\n40\u00b0\n5\n2\n5-\n--\n4\n35\u00b0\n3\n35\u00b0\n70\u00b0\n-10-\n2\n1\n30\u00b0\n30\u00b0\n1\n1\n25\u00b0\n25\u00b0\n80\u00b0\n75\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n59\n6\n45\u00b0\n40\u00b0\n1953-54\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n3\n4\n5\n6\n6\n45\u00b0\n4.50\n5\n10\n2\n40\u00b0\n400\n/\n3.50\n35\u00b0\n70\u00b0\n2\n300\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n60\n3\n300\n1954-55 Departure isopleths (\u00baF). - -- Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0\n1\n2\n3\n2\n45\u00b0\n-1\n45\u00b0\n1\n-2\n2\n40\u00b0\nV\n40\u00b0\n1\n35\u00b0\n35\u00b0\n-10\n70\u00b0\n-3\n1\n30\u00b0\n30\u00b0\n-2\n-1\n0\n-1\n25\u00b0\n25\u00b0\n52\n85\u00b0\n80\u00b0\n75\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n12\n61\n1955-56\nDeparture isopleths (\u00baF). - -- Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n4.5\u00b0\n-3\n-2\n--\n-2\n-1\n.\n1\n-1\n40\u00b0\n40\u00b0\n3.5\u00b0\n35\u00b0\n70\u00b0\n0\n1\n30\u00b0\n30\u00b0\n25\u00b0\n0\n25\u00b0\n50\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n62\n-3\n-10_\n45\u00ba\n0\n-\n1956-57\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-4\n-3\n-2\n45\u00b0\n-3\n4.50\n-10\n0\n-2\n-1\n40\u00b0\n2\n2\n3\n4\n35\u00b0\n35\u00b0\n70\u00b0\n1\n5\n1g\n20\n6\n30\u00b0\n3\n30\u00b0\n6\n5\n53\n5\n25\u00b0\n250\n4\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n63\n1\n1\n40\u00b0\n2\n1957-58\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n6\n7\n5\n7\n45\u00b0\n6\n45\u00b0\n4\n10\n52\n3\n3\n40\u00b0\n1\n40\u00b0\n2\n0\n- -\nY-1\n-2\n35\u00b0\n35\u00b0\n-3\n-10\n700\n-4\n30\u00b0\n30\u00b0\n1\n-4\n-5\n0\n-2\u03c3\n-3\n-2\n25\u00b0\n-1\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n64\n3\n2\n2\n1958-59 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n0\n-1\n-2\n2\n-3\n4\n45\u00ba\n4.5\u00b0\n5\n-4\n3\n40\u00b0\n4.\n-3\n40\u00b0\n-1g\n-2\n1\n3.5\u00b0\n70\u00b0\n-10-\n1\n30\u00b0\n300\n2\n1\n0\n0\n-1\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n65\n35\u00b0\n1959-60\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0\n1\n2 3 4\n5\n45\u00b0\n45\u00b0\n5\n-10\n4\n10\n40\u00b0\n40\u00b0\n35\u00b0\n1\n3.5\u00b0\n70\u00b0\n-- 10\n-2\n30\u00b0\n300\n1\n2\n25\u00b0\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n-1\n2\n0\n66\n1960-61 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n3\n4 5\n45\u00b0\n3\n45\u00b0\n2\n10 --\n1\n40\u00b0\n40\u00b0\n-2\n1\n-3\n35\u00b0\n3.5\u00b0\n70\u00b0\n30\u00b0\n0\n30\u00b0\n-1\n-2\n-2\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n67\n5\n4\n-3\n1961-62\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n1000\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-1\n-2\n4.5\u00b0\n1\n45\u00ba\n40\u00b0\n40\u00b0\n0\n35\u00b0\n3.5\u00ba\n70\u00b0\n-1\n1\n300\n30\u00b0\n0\n52\n1\n2\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n68\nSh\n1962-63 Departure isopleths (\u00b0F). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n45\u00b0\n2\n45\u00ba\n5\n.4\n-4\n1\n-6\n40\u00b0\n-3\n400\n1\n3.5\u00b0\n1\n35\u00b0\n-1g\n-20-\n2\n70\u00b0\n30\u00b0\n1\n30\u00b0\n0\n-1\n-5\n52\n-5\n-4\n25\u00b0\n25\u00b0\n-31\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\nN\n0\n-1\n3\n-5\n- 10\n-2\n.4\n69\n1963-64\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n3\n4\n1\n4\n3\n45\u00ba\n45\u00ba\n2\nO\n.10\n.\n40\u00b0\n40\u00ba\n-2\n-\n35\u00b0\n70\u00b0\n-4\n-10\n-2\n30\u00b0\n30\u00b0\n-3\n-4\n-5\n_5\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\n35\u00b0\n12\n1964-65 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-1 -2 -3\n0\n45\u00b0\n45\u00b0\n-3\n-2\n40\u00b0\n40\u00b0\n0\n35\u00b0\n35\u00b0\n70\u00b0\n30\u00b0\n30\u00b0\n1\n25\u00b0\n25\u00b0\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n100\u00b0\n95\u00b0\n110\n105\u00b0\n115\u00b0\n71\n-4 -5\n1965-66\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0\n-1\n4.5\u00b0\n0\n4.5\u00ba\n-1\n-2\n40\u00b0\n1\n400\n2\n\u20ac\n_1\n35\u00b0\n35\u00b0\n70\u00b0\n-2\n-10\n30\u00b0\n30\u00b0\n52\n-25\n25\u00b0\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n72\n-1\n0\n1966-67 Departure isopleths (\u00baF). - -- - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n4\n3 2\n1\n0\n-1\n45\u00ba\n4\n45\u00b0\n1\n3 m-\n1\n0\n1g\n2\n40\u00b0\n40\u00b0\n1\nO\n3.5\u00b0\n35\u00b0\n70\u00b0\n-1\n30\u00b0\n30\u00b0\n0\n-2\n-1\n12\n-1\n5\n-2\n250\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n73\n1967-68\nDeparture isopleths (\u00baF). --- Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n4.50\n4.5\u00ba\n-3\n1\n40\u00b0\n400\n0\n35\u00b0\n35\u00b0\n70\u00b0\n.- 3\n-1\n30\u00b0\n30\u00b0\n-2\n-2\n3\n25\u00b0\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n74\n-10\n1968-69 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-5|\n-6\n-5\n-6 -5 -4 -3\n-2\n4.5\u00b0\n-4\n45\u00b0\n3\n1\n0\n40\u00b0\n40\u00b0\n1\n-10\n1\n35\u00b0\n-\n70\u00b0\n-2\n30\u00b0\n-1\n30\u00b0\n-3\n-2\n10.\n52\n-1\n0\n25\u00b0\n25\u00b0\n52\n80\u00b0\n75\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n-2\n35\u00b0\n-1\n1\n-3\n-1\n75\n1969-70 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n0\n-1\n4.50\n4.50\n-2\n-10\n-4\n-2\n40\u00b0\n3\n-3\n400\n4\n10\n1\n3.5\u00b0\n-1\u03c3\n35\u00ba\n-\n2\n300\n300\n1\n0\n-3\n-1\n-2\n2.50\n250\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n76\n1\n-1\n4\nI\n70\u00b0\n12\n1970-71 Departure isopleths (\u00baF). -- - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0\n-1\n-4\n-2\n45\u00ba\n45\u00b0\n-3\n-3\n-2\nO\n-2\n40\u00b0\n400\n-1\n3.5\u00b0\n3.5\u00b0\n70\u00b0\n10-\n30\u00b0\n30\u00b0\n0\n10\n1\n53\n2\n3\n25\u00b0\n3\n25\u00b0\n50\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n77\n2\n1971-72 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-3\n-4\n-2\n45\u00b0\n45\u00ba\n4\n3\n-1\n2\n1\n40\u00b0\n2\n3\n350\n35\u00b0\n70\u00b0\n-\n-1g\n30\u00b0\n30\u00b0\n-1\n-- T\n0\n4\n1\n25\u00ba\n25\u00b0\n2\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n8.5\u00b0\n80\u00b0\n75\u00b0\n78\n0\n40\u00b0\n3\n1972-73\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-1\n0\n1\n2\n3\n2\n4.5\u00b0\n1\n0\n40\u00b0\n40\u00b0\n1\n-10\n2\n35\u00b0\n-4\n35\u00b0\n1\n70\u00b0\n0\n30\u00b0\n30\u00b0\n.10\n-2\n1\n-3\n-3\n25\u00b0\n25\u00b0\n50\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n79\n45\u00b0\n-2\n/\n1973-74\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2\n3\n45\u00b0\n2\n45\u00b0\n1\n1\n40\u00b0\n2\n40\u00b0\nO\n2\n0\n~1\n35\u00b0\n70\u00b0\n4\n10\n30\u00b0\n4\n30\u00b0\n0\n2\n3\n1\n2.5\u00ba\n250\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n80\n3\n3.5\u00b0\n3\n1974-75 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0\n0\n1\n2\n3\n45\u00b0\n45\u00b0\n4\n0\n2\n10\n40\u00b0\n3\n4\n3\n40\u00b0\n-1\n13\n35\u00b0\n35\u00b0\n-2\n70\u00b0\n30\u00b0\n30\u00b0\n-1\n2\n52\n10\n1\n25\u00b0\n0\n25\u00b0\n50\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n81\n1\nSI\n1975-76 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n2 3 4 5\n6\n6 5 4 3\n45\u00b0\n-2\n45\u00ba\n2\n-1\n0\n40\u00b0\n40\u00b0\n1\n2\n2\n3.50\n3.5\u00b0\n70\u00b0\n1\n30\u00b0\n30\u00b0\nO\n12\n0\n25\u00b0\n1\n25\u00b0\n115\u00b0\n110\u00b0\n10.5\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n82\n1976-77\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n2\n3\n3 2 1\n0-1-2-3\n-4\n.5\n0\n6\n-4\n0\n-5\n40\u00b0\n7\n-6\n40\u00b0\n-8\n-5\n35\u00b0\n3.5\u00b0\n-20\n70\u00b0\n-10\n-20\n0\n30\u00b0\n30\u00b0\n-1\n-2-\n53\n-5\n-6\n25\u00b0\n-4\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n83\n45\u00b0\n45\u00ba\n-3\n1977-78 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n1\n0 -1-2 -4-5 -6\n2\n4.5\u00b0\n45\u00ba\n-100\n40\u00b0\n40\u00b0\n4\n-4\n-- 9-\n-5\n-204\n3.5\u00b0\n35\u00b0\n1\n700\n-\n.- 8\nI\n30\u00b0\n30\u00b0\n-20\n2\n1\n-2 !- 3\n53\n-6\n-1\n-20\n-4\n25\u00b0\n25\u00b0\n3-5\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n84\n-6\n-5\n-3\n1\n-7\n-6\n1978-79 Departure isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-6\n-7 -8 -9\n-9 -8\n4.5\u00b0\n7\n-5\n-2\n-- 20-4\n-3\n_10\n4\n4\n40\u00b0\n-20\n-5.\n-3\n6\nT.\n35\u00b0\n10\n3.5\u00ba\n70\u00b0\n30\u00b0\n30\u00b0\n-3\n-- 4\n-3\n-2\n25\u00b0\n25\u00b0\n52\n80\u00b0\n75\u00b0\n85\u00b0\n90\u00b0\n95\u00b0\n100\u00b0\n105\u00b0\n115\u00b0\n110\u00b0\n85\n45\u00ba\n40\u00b0\n--_ 30\n-4\n5\n1979-80\nDeparture isopleths (\u00baF). - -- Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n0\n1\n2\nmi\n4.50\n4.3.\n4.50\n2\n40\u00b0\n40\u00b0\n4\n10\n3\n35\u00b0\n3.5\u00b0\n70\u00b0\n1\n-2\n3\n1\n30\u00b0\n30\u00b0\n2\n0\n-2\n-2\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n86\n1\n1980-81\nDeparture isopleths (\u00baF). ---\nStandardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n4\n5\n6\nN\n6\n5\n4\n2\n450\n3\n2\n0\n10\n40\u00b0\ni\n1\n1\n1\n350\n1\n35\u00b0\n-2\n/\n70\u00b0\n20\n-3\n30\u00b0\n30\u00b0\n10\n3\n=3\n1\n25\u00b0\n25\u00b0\n52\n-1 --\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n87\n13\nn\n4.50\n2\n40\u00b0\n1981-82\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n-2\n-3\n-4\n-5\n-10\n=4\n45\u00b0\n4.5\u00ba\n0\n-2\n3\n== 10\n40\u00b0\n5\n1\n-6\n3.5\u00b0\n3.5\u00ba\n70\u00b0\n-2\n30\u00b0\n30\u00b0\n-1\n0\nO\n-2\n1\n25\u00ba\n25\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n88\n400\n1982-83\nDeparture isopleths (\u00baF). - - - Standardized departures.\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n4\n5\n3\n6\n7\n8 9 10\n9\n.8.20\n45\u00ba\n-10 --\n2\n6\n40\u00b0\n40\u00b0\n5\n2\n35\u00b0\n1\n3.5\u00b0\n70\u00b0\n0\n30\u00b0\n0\n30\u00b0\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n89\n4.50\n1895-1983 Mean winter temperatures\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n70\u00b0\n32.9\n450\n18.8\n20.3,\n17.7\n33.9\n12.3\n25.3\n17.2\n23.1\n40\u00b0\n22.3\n27.7\n40\u00b0\n22.1\n28.3\n31.7\n25.8\n29.8\n27.8\n29.3\n29.9\n45.7\n26.0\n33.1\n34.4\n32.4\n32.9\n37.0\n36.5\n35\u00b0\n42.5\n70\u00b0\n39.8\n39.9\n36.1\n42.4\n46.7\n47.7\n47.3\n48.5\n30\u00b0\nr\n48.2\n51.7\n59.7\n25\u00b0\n25\u00b0\n50\n80\u00b0\n75\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n8.5\u00b0\n115\u00b0\n90\n4.5\u00b0\n21.2\n10.6\n27.1\n30.4\n21.7\n19.6\n32.2\n35.8\n35\u00b0\n42.9\n30\u00b0\n1931-32 Seasonal departures\n125\u00b0\n120\u00b0\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00ba\n80\u00b0\n75\u00b0\n70\u00b0\n-2.8\n45\u00b0\n45\u00b0\n0.4\n4.2\n4.3\n-3.2\n6.0\n6.2\n5.2\n1.2\n7.0\n7.9\n7.3\n5.4\n-2.2\n400\n6.2\n9.0\n5.7\n9.7\n8.9\n9.2\n8.5\n8.4\n-3.5\n-0.6\n9.1\n3.6\n7.9\n8.9\n9.4\n35\u00b0\n8.7\n70\u00b0\n9.0\n-3.7\n5.1\n-1.6\n7.0\n8.1\n8.6\n9.0\n8.2\n30\u00b0\n3.1\n6.8\n53\n8.0\n25\u00b0\n25\u00b0\n52\n115\u00b0\n110\u00b0\n105\u00b0\n100\u00b0\n95\u00b0\n90\u00b0\n85\u00b0\n80\u00b0\n75\u00b0\n91\n40\u00b0\n6.000\n-4.4\n1.6\n-5.4\n350\n30\u00b0\n-4.5\nWinter Temperature Departure From The Long-Term Mean (1895 - 1983) ILLINOIS\n12\n20\nC\n4 -\n-\n1 0\n-\nDEGREES F\n0-\nC\n-\n---\n-\n-\n-10\nC\nc\n.- 20\n-\n-8-\n.\n-12 -\n1894 1898 1902 1906 1910\n1914 1918 1922 1926 1930 1934 1938 1942 1946 1950\n1954 1958 1962\n1966 1970\n1974 1978 1982\nYEAR\nQ\n92\nReferences\nDiaz, H. F. and R. G. Quayle, 1978: The 1976-77 winter in the contiguous United States in comparison with past records. Mon. Wea. Rev., 106, 1393-1421.\nU. S. Department of Agriculture, 1895-1930: U. S. Weather Bureau Monthly Climatological Data Summaries. Available on microfiche from the National Climatic Center, Asheville, NC.\nU. S. Department of Commerce, 1978: State, Regional, and National Monthly and Annual Temperatures Weighted by Area. National Climatic Center, Asheville, NC, pp. 67.\nDiaz, H. F., 1979: The extreme temperature anomalies of March 1843 and February 1936. Mon Wea. Rev., 107, 1688-1694.\nUSCOMM-NOAA-ASHEVILLE, N.C. 12/83/500\n93\nGLERL LIBRARY - Ann Arbor 5 0778 01007060 5\nQC905 .D33 1983 c.1 Diaz, Henry F. Atlas of mean winter tempera ture departures from\nDATE\nISSUED TO\nQC905 .D33 1983 c.1 Diaz, Henry F. Atlas of mean winter tempera ture departures from\nGREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, LIBRARY 2300 WASHTENAW AVENUE ANN ARBOR, MI. 48104\n04-25", "pages": [ { "pageNumber": 1, "angle": 0, "width": 10.875, "height": 8.3472, "unit": "inch", "words": [ { "content": "REFERENCE", "polygon": [ 0.4137, 0.3427, 1.2367, 0.3489, 1.2361, 0.5039, 0.4107, 0.4958 ], "confidence": 0.993, "span": { "offset": 0, "length": 9 } }, { "content": "OF", "polygon": [ 1.2682, 0.5011, 1.3582, 0.5138, 1.3503, 0.5697, 1.2651, 0.5624 ], "confidence": 0.998, "span": { "offset": 10, "length": 2 } }, { "content": "COMME", "polygon": [ 1.376, 0.5186, 1.6042, 0.6508, 1.583, 0.7024, 1.3671, 0.5736 ], "confidence": 0.992, "span": { "offset": 13, "length": 5 } }, { "content": "QC", "polygon": [ 0.472, 0.7603, 0.6475, 0.7554, 0.6514, 0.8708, 0.472, 0.8782 ], "confidence": 0.772, "span": { "offset": 19, "length": 2 } }, { "content": "905", "polygon": [ 0.4767, 0.9159, 0.7222, 0.9159, 0.7222, 1.0387, 0.4767, 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"content": "The", "polygon": [ 8.6676, 6.8685, 8.9064, 6.8701, 8.9037, 7.0084, 8.665, 7.0086 ], "confidence": 0.998, "span": { "offset": 3239, "length": 3 } }, { "content": "actual", "polygon": [ 8.9992, 6.8706, 9.493, 6.8738, 9.4902, 7.0078, 8.9965, 7.0083 ], "confidence": 0.992, "span": { "offset": 3243, "length": 6 } }, { "content": "data", "polygon": [ 9.5835, 6.8744, 9.9136, 6.8765, 9.9136, 7.0074, 9.5805, 7.0077 ], "confidence": 0.991, "span": { "offset": 3250, "length": 4 } }, { "content": "V", "polygon": [ 5.341, 7.6122, 5.4554, 7.6122, 5.4527, 7.7346, 5.341, 7.7321 ], "confidence": 0.973, "span": { "offset": 3255, "length": 1 } } ], "lines": [ { "content": "Preface", "polygon": [ 5.2467, 0.674, 5.836, 0.674, 5.836, 0.7966, 5.2467, 0.7966 ], "spans": [ { "offset": 1053, "length": 7 } ] }, { "content": "This atlas presents seasonal maps of winter temperature departures from the long-term mean (1895-1983)", "polygon": [ 1.4991, 1.3245, 9.989, 1.3575, 9.989, 1.5036, 1.4991, 1.4706 ], "spans": [ { "offset": 1061, "length": 102 } ] }, { "content": "over the contiguous United States for each of these 89 seasons. The purpose of this publication is to", "polygon": [ 1.0842, 1.5696, 9.5789, 1.6073, 9.5789, 1.7534, 1.0842, 1.7157 ], "spans": [ { "offset": 1164, "length": 101 } ] }, { "content": "provide the many users of climatic information with a reference containing the longest available series of", "polygon": [ 1.0748, 1.8194, 9.9277, 1.8571, 9.9277, 2.0079, 1.0748, 1.9702 ], "spans": [ { "offset": 1266, "length": 106 } ] }, { "content": "maps depicting the spatial distribution of winter temperature relative to a long-term record mean, and to", "polygon": [ 1.0701, 2.0739, 9.8382, 2.1116, 9.8382, 2.2624, 1.0701, 2.22 ], "spans": [ { "offset": 1373, "length": 105 } ] }, { "content": "present a statistical measure of the degree of unusualness of these temperature departures.", "polygon": [ 1.0795, 2.3331, 8.6502, 2.3614, 8.6502, 2.5123, 1.0795, 2.4745 ], "spans": [ { "offset": 1479, "length": 91 } ] }, { "content": "For each state, winter mean temperatures were derived by averaging together the monthly mean tempera-", "polygon": [ 1.4943, 2.8281, 9.9372, 2.8658, 9.9372, 3.0119, 1.4943, 2.9742 ], "spans": [ { "offset": 1571, "length": 101 } ] }, { "content": "tures for December, January, and February over each season from 1894-95 to 1982-83. The monthly mean values", "polygon": [ 1.0937, 3.0873, 10.0974, 3.1109, 10.0974, 3.2617, 1.0937, 3.224 ], "spans": [ { "offset": 1673, "length": 107 } ] }, { "content": "were derived by areally weighting state climatic division values from 1931 to 1983 (see Diaz and Quayle,", "polygon": [ 1.0748, 3.3277, 9.7439, 3.3607, 9.7439, 3.5115, 1.0748, 3.4738 ], "spans": [ { "offset": 1781, "length": 104 } ] }, { "content": "1978, and U.S. Department of Commerce, 1978). Prior to 1931 state mean temperatures were obtained from the", "polygon": [ 1.0795, 3.5681, 10.0079, 3.6058, 10.0079, 3.7566, 1.0795, 3.7236 ], "spans": [ { "offset": 1886, "length": 106 } ] }, { "content": "monthly climatological reports for each state issued by the Climatological Service of the U.S. Weather", "polygon": [ 1.0701, 3.8273, 9.5789, 3.8556, 9.5789, 4.0017, 1.0701, 3.9781 ], "spans": [ { "offset": 1993, "length": 102 } ] }, { "content": "Bureau. Data from the period prior to 1931 were adjusted to the areally weighted series by virtue of an", "polygon": [ 1.0748, 4.0818, 9.758, 4.1148, 9.758, 4.2609, 1.0748, 4.2279 ], "spans": [ { "offset": 2096, "length": 103 } ] }, { "content": "18-year overlap in the two series (1931-48). Each calendar month was adjusted by the difference between", "polygon": [ 1.0748, 4.3269, 9.758, 4.3599, 9.758, 4.506, 1.0748, 4.4778 ], "spans": [ { "offset": 2200, "length": 103 } ] }, { "content": "the corresponding 18-year means. Standardized departures (seasonal values minus the long-term mean divided", "polygon": [ 1.0795, 4.572, 10.0032, 4.6097, 10.0032, 4.7558, 1.0795, 4.7276 ], "spans": [ { "offset": 2304, "length": 106 } ] }, { "content": "by the standard deviation) are included as an aid in assessing the relative magnitude of the seasonal", "polygon": [ 1.0701, 4.8171, 9.494, 4.8548, 9.494, 5.0104, 1.0701, 4.9727 ], "spans": [ { "offset": 2411, "length": 101 } ] }, { "content": "departures compared to the natural variability of the area. Divisional data from 1931 and state averages", "polygon": [ 1.0748, 5.0811, 9.8335, 5.1046, 9.8335, 5.2555, 1.0748, 5.2319 ], "spans": [ { "offset": 2513, "length": 104 } ] }, { "content": "from the start of record are available on request from the National Climatic Data Center, Asheville, NC.", "polygon": [ 1.0842, 5.3262, 9.7392, 5.3592, 9.7392, 5.5006, 1.0842, 5.4723 ], "spans": [ { "offset": 2618, "length": 104 } ] }, { "content": "The reader should keep in mind the limitations in these data. Averaging is done over a wide range of", "polygon": [ 1.4943, 5.8305, 9.9183, 5.8776, 9.9183, 6.0238, 1.4943, 5.9719 ], "spans": [ { "offset": 2723, "length": 100 } ] }, { "content": "spatial scales and implicitly over a wide range of local climates (for example, Texas and California). The", "polygon": [ 1.0748, 6.0803, 10.0032, 6.118, 10.0032, 6.2641, 1.0748, 6.2359 ], "spans": [ { "offset": 2824, "length": 106 } ] }, { "content": "magnitude of the departures are thus representative of spatial scales on the order of 10- - 10 km.", "polygon": [ 1.0559, 6.3301, 9.4139, 6.3584, 9.4139, 6.5092, 1.0559, 6.4857 ], "spans": [ { "offset": 2931, "length": 98 } ] }, { "content": "2", "polygon": [ 8.4947, 6.2924, 8.4947, 6.3961, 8.4051, 6.3961, 8.4051, 6.2971 ], "spans": [ { "offset": 3030, "length": 1 } ] }, { "content": "3", "polygon": [ 8.8482, 6.2924, 9.0038, 6.2971, 8.9991, 6.4338, 8.8482, 6.4433 ], "spans": [ { "offset": 3032, "length": 1 } ] }, { "content": "Further-", "polygon": [ 9.4516, 6.3773, 10.1776, 6.382, 10.1776, 6.5045, 9.4516, 6.4998 ], "spans": [ { "offset": 3034, "length": 8 } ] }, { "content": "more, averaging over three-month's time often masks the very large changes that can occur within a single", "polygon": [ 1.0607, 6.5847, 9.8382, 6.6176, 9.8382, 6.7685, 1.0607, 6.7261 ], "spans": [ { "offset": 3043, "length": 105 } ] }, { "content": "season, or the magnitude of extreme anomalies at the monthly time scale (see Diaz, 1979). 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"content": "values for the 1931-32 season are presented on page 91 to give the reader an example of the consistency", "polygon": [ 0.6818, 0.7011, 9.2676, 0.6494, 9.2676, 0.8047, 0.6818, 0.8564 ], "spans": [ { "offset": 3257, "length": 103 } ] }, { "content": "and spatial coherence of the data.", "polygon": [ 0.6818, 0.96, 3.5077, 0.9364, 3.5077, 1.0776, 0.6818, 1.1105 ], "spans": [ { "offset": 3361, "length": 34 } ] }, { "content": "Analysis of the spatial distribution of winter anomalies over a long period provides some perspective", "polygon": [ 1.0909, 1.4541, 9.5262, 1.4023, 9.5262, 1.5482, 1.0909, 1.6046 ], "spans": [ { "offset": 3396, "length": 101 } ] }, { "content": "on the mode of variation of winter temperature over the contiguous United States. 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INFORMATION SERVICE" }, { "spans": [ { "offset": 578, "length": 60 } ], "boundingRegions": [ { "pageNumber": 1, "polygon": [ 6.8205, 7.6296, 8.666, 7.6296, 8.666, 7.8845, 6.8205, 7.8845 ] } ], "content": "1 NATIONAL CLIMATIC DATA CENTER ASHEVILLE, N.C. Revised 1983" }, { "spans": [ { "offset": 639, "length": 4 } ], "boundingRegions": [ { "pageNumber": 1, "polygon": [ 8.4395, 3.8667, 8.5622, 3.8667, 8.5622, 3.9234, 8.4395, 3.9234 ] } ], "content": "4.5\u00ba" }, { "spans": [ { "offset": 644, "length": 3 } ], "boundingRegions": [ { "pageNumber": 1, "polygon": [ 4.9277, 3.9564, 5.1401, 3.9753, 5.1334, 4.0511, 4.921, 4.0322 ] } ], "content": "-10" }, { "spans": [ { "offset": 648, "length": 3 } ], "boundingRegions": [ { "pageNumber": 1, "polygon": [ 2.4969, 4.3955, 2.6338, 4.3955, 2.6338, 4.4663, 2.4969, 4.4663 ] } ], "content": "40\u00b0" }, { "spans": [ { "offset": 652, "length": 3 } ], "boundingRegions": [ { "pageNumber": 1, "polygon": [ 8.4293, 4.5707, 8.5476, 4.5608, 8.5531, 4.6264, 8.4347, 4.6363 ] } ], "content": "40\u00b0" }, { "spans": [ { "offset": 656, "length": 113 } ], "boundingRegions": [ { "pageNumber": 2, "polygon": [ 2.8708, 0.6552, 8.0141, 0.6599, 8.013, 1.8516, 2.8697, 1.8469 ] } ], "content": "ATLAS OF MEAN WINTER TEMPERATURE DEPARTURES FROM THE LONG-TERM MEAN OVER THE CONTIGUOUS UNITED STATES 1895 - 1983" }, { "spans": [ { "offset": 770, "length": 13 } ], "boundingRegions": [ { "pageNumber": 2, "polygon": [ 8.0751, 1.1077, 10.3426, 1.1501, 10.3359, 1.5082, 8.0684, 1.4657 ] } ], "content": "GLERL LIBRARY" }, { "spans": [ { "offset": 784, "length": 63 } ], "boundingRegions": [ { "pageNumber": 2, "polygon": [ 3.4837, 5.1659, 7.3586, 5.1659, 7.3586, 6.0426, 3.4837, 6.0426 ] } ], "content": "NATIONAL CLIMATIC CENTER ASHEVILLE, NORTH CAROLINA Revised 1983" }, { "spans": [ { "offset": 848, "length": 4 } ], "boundingRegions": [ { "pageNumber": 2, "polygon": [ 5.1995, 6.8675, 5.423, 6.8437, 5.4325, 6.9332, 5.209, 6.957 ] } ], "content": "MENT" }, { "spans": [ { "offset": 853, "length": 11 } ], "boundingRegions": [ { "pageNumber": 2, "polygon": [ 5.3422, 6.899, 5.3796, 6.8098, 5.7885, 6.9809, 5.7511, 7.0701 ] } ], "content": "T OF COMMER" }, { "spans": [ { "offset": 865, "length": 5 } ], "boundingRegions": [ { "pageNumber": 2, "polygon": [ 5.1477, 6.9315, 5.2043, 6.9712, 5.0962, 7.1255, 5.0395, 7.0859 ] } ], "content": "EPART" }, { "spans": [ { "offset": 871, "length": 24 } ], "boundingRegions": [ { "pageNumber": 2, "polygon": [ 5.0161, 7.2911, 5.7436, 7.3016, 5.7389, 7.6216, 5.0114, 7.6111 ] } ], "content": "UNITED TED STATES OF AME" }, { "spans": [ { "offset": 896, "length": 7 } ], "boundingRegions": [ { "pageNumber": 2, "polygon": [ 5.7639, 7.2983, 5.8171, 7.3341, 5.6521, 7.5792, 5.5989, 7.5434 ] } ], "content": "AMERICA" }, { "spans": [ { "offset": 904, "length": 8 } ], "boundingRegions": [ { "pageNumber": 3, "polygon": [ 5.539, 0.6834, 6.2092, 0.6882, 6.2084, 0.8107, 5.5381, 0.806 ] } ], "content": "Contents" }, { "spans": [ { "offset": 913, "length": 9 } ], "boundingRegions": [ { "pageNumber": 3, "polygon": [ 1.5415, 1.513, 9.3055, 1.513, 9.3055, 1.6356, 1.5415, 1.6356 ] } ], "content": "Preface V" }, { "spans": [ { "offset": 923, "length": 13 } ], "boundingRegions": [ { "pageNumber": 3, "polygon": [ 1.5462, 2.0126, 2.6452, 2.0173, 2.6446, 2.1587, 1.5456, 2.154 ] } ], "content": "Seasonal Maps" }, { "spans": [ { "offset": 937, "length": 1 } ], "boundingRegions": [ { "pageNumber": 3, "polygon": [ 9.2253, 2.0173, 9.3008, 2.0173, 9.3008, 2.1352, 9.2253, 2.1352 ] } ], "content": "1" }, { "spans": [ { "offset": 939, "length": 42 } ], "boundingRegions": [ { "pageNumber": 3, "polygon": [ 1.5321, 2.4981, 9.3055, 2.4981, 9.3055, 2.6584, 1.5321, 2.6584 ] } ], "content": "Mean Winter Temperature Map (1895-1983) 90" }, { "spans": [ { "offset": 982, "length": 18 } ], "boundingRegions": [ { "pageNumber": 3, "polygon": [ 1.5509, 3.0025, 9.3008, 3.0166, 9.3005, 3.1699, 1.5506, 3.1557 ] } ], "content": "Sample Data Map 91" }, { "spans": [ { "offset": 1001, "length": 33 } ], "boundingRegions": [ { "pageNumber": 3, "polygon": [ 1.5368, 3.5068, 9.2961, 3.5068, 9.2961, 3.6482, 1.5368, 3.6482 ] } ], "content": "Time Series Graph for Illinois 92" }, { "spans": [ { "offset": 1035, "length": 13 } ], "boundingRegions": [ { "pageNumber": 3, "polygon": [ 1.5415, 4.0111, 9.2961, 4.0111, 9.2961, 4.1337, 1.5415, 4.1337 ] } ], "content": "References 93" }, { "spans": [ { "offset": 1049, "length": 3 } ], "boundingRegions": [ { "pageNumber": 3, "polygon": [ 5.3598, 7.5179, 5.5201, 7.5179, 5.5201, 7.697, 5.3598, 7.697 ] } ], "content": "iii" }, { "spans": [ { "offset": 1053, "length": 7 } ], "boundingRegions": [ { "pageNumber": 4, "polygon": [ 5.2467, 0.674, 5.836, 0.674, 5.836, 0.7966, 5.2467, 0.7966 ] } ], "content": "Preface" }, { "spans": [ { "offset": 1061, "length": 509 } ], "boundingRegions": [ { "pageNumber": 4, "polygon": [ 1.073, 1.3228, 9.9896, 1.3575, 9.9851, 2.5174, 1.0685, 2.4828 ] } ], "content": "This atlas presents seasonal maps of winter temperature departures from the long-term mean (1895-1983) over the contiguous United States for each of these 89 seasons. The purpose of this publication is to provide the many users of climatic information with a reference containing the longest available series of maps depicting the spatial distribution of winter temperature relative to a long-term record mean, and to present a statistical measure of the degree of unusualness of these temperature departures." }, { "spans": [ { "offset": 1571, "length": 1151 } ], "boundingRegions": [ { "pageNumber": 4, "polygon": [ 1.0734, 2.8267, 10.0988, 2.8562, 10.0901, 5.5017, 1.0647, 5.4722 ] } ], "content": "For each state, winter mean temperatures were derived by averaging together the monthly mean tempera- tures for December, January, and February over each season from 1894-95 to 1982-83. The monthly mean values were derived by areally weighting state climatic division values from 1931 to 1983 (see Diaz and Quayle, 1978, and U.S. Department of Commerce, 1978). Prior to 1931 state mean temperatures were obtained from the monthly climatological reports for each state issued by the Climatological Service of the U.S. Weather Bureau. Data from the period prior to 1931 were adjusted to the areally weighted series by virtue of an 18-year overlap in the two series (1931-48). Each calendar month was adjusted by the difference between the corresponding 18-year means. Standardized departures (seasonal values minus the long-term mean divided by the standard deviation) are included as an aid in assessing the relative magnitude of the seasonal departures compared to the natural variability of the area. Divisional data from 1931 and state averages from the start of record are available on request from the National Climatic Data Center, Asheville, NC." }, { "spans": [ { "offset": 2723, "length": 308 } ], "boundingRegions": [ { "pageNumber": 4, "polygon": [ 1.0574, 5.8293, 10.0043, 5.8545, 10.0025, 6.5109, 1.0555, 6.4857 ] } ], "content": "The reader should keep in mind the limitations in these data. Averaging is done over a wide range of spatial scales and implicitly over a wide range of local climates (for example, Texas and California). The magnitude of the departures are thus representative of spatial scales on the order of 10- - 10 km. 2" }, { "spans": [ { "offset": 3032, "length": 222 } ], "boundingRegions": [ { "pageNumber": 4, "polygon": [ 1.0617, 6.2675, 10.1782, 6.2967, 10.176, 7.0097, 1.0594, 6.9805 ] } ], "content": "3 Further- more, averaging over three-month's time often masks the very large changes that can occur within a single season, or the magnitude of extreme anomalies at the monthly time scale (see Diaz, 1979). The actual data" }, { "spans": [ { "offset": 3255, "length": 1 } ], "boundingRegions": [ { "pageNumber": 4, "polygon": [ 5.3457, 7.6122, 5.4541, 7.6163, 5.4494, 7.7389, 5.341, 7.7347 ] } ], "content": "V" }, { "spans": [ { "offset": 3257, "length": 138 } ], "boundingRegions": [ { "pageNumber": 5, "polygon": [ 0.6793, 0.7012, 9.2676, 0.6494, 9.27, 1.0588, 0.6818, 1.1105 ] } ], "content": "values for the 1931-32 season are presented on page 91 to give the reader an example of the consistency and spatial coherence of the data." }, { "spans": [ { "offset": 3396, "length": 584 } ], "boundingRegions": [ { "pageNumber": 5, "polygon": [ 0.6746, 1.4566, 9.7834, 1.4007, 9.7919, 2.7936, 0.6832, 2.8495 ] } ], "content": "Analysis of the spatial distribution of winter anomalies over a long period provides some perspective on the mode of variation of winter temperature over the contiguous United States. An important use of this information, for example, would be in assessing the potential heating fuel demand in various regions of the contiguous states if a particular pattern were to occur in the future. A time series of the winter depar- tures for Illinois is presented on page 92 as an example of the alternative representation in the time domain of the information that is contained in these maps." }, { "spans": [ { "offset": 3981, "length": 698 } ], "boundingRegions": [ { "pageNumber": 5, "polygon": [ 0.6815, 3.2026, 9.6026, 3.1433, 9.6135, 4.7829, 0.6924, 4.8422 ] } ], "content": "Many interesting features can be noted from these maps; for instance, high interannual variability occurs in the years preceding the 1920's. A major change in the departure patterns occurs thereafter and the frequency of below average seasonal temperatures drops off markedly until the mid-1950's. During this period, the decade of the 1940's shows remarkable quiescence by comparison with other decades, such as the 1910's and 1930's, which were periods with high winter season temperature variability. The 1970's decade had the remarkable occurrence of three of the most severe winters on record and the occurrence, in 1978-79, of below-average temperatures over all the contiguous United States." }, { "spans": [ { "offset": 4680, "length": 277 } ], "boundingRegions": [ { "pageNumber": 5, "polygon": [ 0.6929, 5.2032, 9.3747, 5.1339, 9.3797, 5.7639, 0.6979, 5.8332 ] } ], "content": "The first issue of this publication was compiled by Henry F. Diaz. This revised issue was effected by Thomas R. Karl and Walter James Koss. Robert H. Courtney expertly drafted the figures for the first issue, and G. 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