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National Weather Service (NWS) National Weather Service (NWS)
National Weather Service (NWS)

This collection contains reports and materials published by the National Weather Service and NWS researchers. Included are technical reports and memorandums, as well as special publications and some video covering a variety of topics such as climate science, space weather, the atmosphere and meteorology.

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    The deadliest, costliest, and most intense United States hurricanes of this century : (and other frequently requested hurricane facts)
    Cite
    Filetype[PDF - 3.90 MB]
    Personal Author:
    Hebert, Paul J. ;
    Taylor, Glenn (James Glenn)
    1983 | NOAA technical memorandum NWS NHC ; 18
    No Description
    File Type:
    Filetype[PDF - 3.90 MB]
    File Type:
    Filetype[PDF - 3.90 MB]
    Radiosonde climatology of west-central Florida
    Cite
    Filetype[PDF - 1.14 MB]
    Personal Author:
    Paxton, Charles H. (Charles Hugh), 1955- ;
    Pelatti, Rocco D.
    ...
    1996 | NOAA technical memorandum NWS SR ; 181
    No Description
    File Type:
    Filetype[PDF - 1.14 MB]
    File Type:
    Filetype[PDF - 1.14 MB]
    Climate Prediction S&T Digest: NWS Science & Technology Infusion Climate Bulletin Supplement
    Cite
    Filetype[PDF - 23.68 MB]
    Corporate Authors:
    United States. National Weather Service. Office of Science and Technology Integration. ...
    2022
    Description:
    It is with great pleasure that the Climate Prediction Center (CPC) and the Office of Science and Technology Integration (STI) offer you this synthesis...
    File Type:
    Filetype[PDF - 23.68 MB]
    File Type:
    Filetype[PDF - 23.68 MB]
    A standardized procedure for the derivation of smooth and partially overset grids on the sphere, associated with polyhedra that admit regular griddings of their surfaces; Mathematical principles of classification and construction; Part I
    Cite
    Filetype[PDF - 1.09 MB]
    Personal Author:
    Purser, Robert James ;
    Rančić, Miodrag
    2011 | Office note (National Centers for Environmental Prediction (U.S.)) ; 467
    Description:
    "Modern global grid point models of the atmosphere are not well served by the traditional horizontal grids based on the latitude and longitude coordin...
    File Type:
    Filetype[PDF - 1.09 MB]
    File Type:
    Filetype[PDF - 1.09 MB]
    A Kalman filter for a two-dimensional shallow-water model, formulation and preliminary experiments
    Cite
    Filetype[PDF - 4.01 MB]
    Personal Author:
    Parrish, David F. ;
    Cohn, Stephen E.
    1985 | Office note (National Centers for Environmental Prediction (U.S.)) ; 304
    Description:
    The Kalman filter is a data assimilation scheme which, unlike currently operational methods such as optimal interpolation (01), makes systematic use o...
    File Type:
    Filetype[PDF - 4.01 MB]
    File Type:
    Filetype[PDF - 4.01 MB]
    Comprehensive hydrostatic quality control at the National Meteorological Center
    Cite
    Filetype[PDF - 2.67 MB]
    Personal Author:
    Collins, William G. ;
    Gandin, L. S. (Lev Semenovich)
    1989 | Office note (National Centers for Environmental Prediction (U.S.)) ; 363
    Description:
    The Comprehensive Hydrostatic Quality Control (CHQC) of rawinsonde data of height and temperature at mandatory isobaric surfaces designed and implemen...
    File Type:
    Filetype[PDF - 2.67 MB]
    File Type:
    Filetype[PDF - 2.67 MB]
    Structural preconditioning in optimal analysis
    Cite
    Filetype[PDF - 1.11 MB]
    Personal Author:
    Purser, Robert James
    1998 | Office note (National Centers for Environmental Prediction (U.S.)) ; 422
    Description:
    "Variational data assimilation in numerical weather prediction (NWP) encompasses a wide variety of techniques, from the early pioneering methods of Sa...
    File Type:
    Filetype[PDF - 1.11 MB]
    File Type:
    Filetype[PDF - 1.11 MB]
    A one-year statistical comparison of the Hough and OI data assimilation systems
    Cite
    Filetype[PDF - 1.55 MB]
    Personal Author:
    Gerrity, Joseph P.
    1980 | Office note (National Centers for Environmental Prediction (U.S.)) ; 209
    Description:
    "This report addresses the question, "How much difference has the use of the optimum interpolation (OI) analysis system made in the meteorological per...
    File Type:
    Filetype[PDF - 1.55 MB]
    File Type:
    Filetype[PDF - 1.55 MB]
    Spectral model precipitation algorithms
    Cite
    Filetype[PDF - 675.54 KB]
    Personal Author:
    Gerrity, Joseph P. ;
    Hirano, Robert Y.
    1982 | Office note (National Centers for Environmental Prediction (U.S.)) ; 263
    Description:
    "In this note, we review the algorithms for computing convective and large scale moist adiabatic processes in the spectral model. The methods have bee...
    File Type:
    Filetype[PDF - 675.54 KB]
    File Type:
    Filetype[PDF - 675.54 KB]
    The new NMC medium range forecast model, an introductory note
    Cite
    Filetype[PDF - 927.86 KB]
    Personal Author:
    Gerrity, Joseph P. ;
    Ward, John H.
    ...
    1985 | Office note (National Centers for Environmental Prediction (U.S.)) ; 315
    Description:
    "A new medium range, numerical weather prediction model was implemented at the U.S. National Meteorological Center (NMC) on April 17, 1985. This note ...
    File Type:
    Filetype[PDF - 927.86 KB]
    File Type:
    Filetype[PDF - 927.86 KB]
    The significance of vertical resolution for predicting the President's Day Snowstorm of 1979
    Cite
    Filetype[PDF - 1.88 MB]
    Personal Author:
    Gerrity, Joseph P.
    1981 | Office note (National Centers for Environmental Prediction (U.S.)) ; 247
    Description:
    "In February 1979, an east-coast cyclone developed which caused a very large snowfall to occur in the mid-Atlantic states. This impressive storm, call...
    File Type:
    Filetype[PDF - 1.88 MB]
    File Type:
    Filetype[PDF - 1.88 MB]
    Preliminary assessment new global forecast system
    Cite
    Filetype[PDF - 350.31 KB]
    Corporate Authors:
    National Meteorological Center (U.S.)
    1984 | Office note (National Centers for Environmental Prediction (U.S.)) ; 294
    Description:
    "Between June 30 and September 15 of 1984, a series of sixteen, five-day forecasts were produced with a new global forecast model. These forecasts wer...
    File Type:
    Filetype[PDF - 350.31 KB]
    File Type:
    Filetype[PDF - 350.31 KB]
    Radi ation error correction procedure
    Cite
    Filetype[PDF - 1.48 MB]
    Personal Author:
    Julian, Paul R.
    1991 | Office note (National Centers for Environmental Prediction (U.S.)) ; 374
    Description:
    "The compatibility of geopotential and temperature measurements made by radiosonde instruments of different countries or manufacturers is a long-stand...
    File Type:
    Filetype[PDF - 1.48 MB]
    File Type:
    Filetype[PDF - 1.48 MB]
    The 1983-1984 evaluation of VAS data in the LFM
    Cite
    Filetype[PDF - 1.95 MB]
    Personal Author:
    O'Lenic, Edward A.
    1985 | Office note (National Centers for Environmental Prediction (U.S.)) ; 310
    Description:
    "This paper examines the effect of vertical profiles of temperature from the VISSR Atmospheric Sounder (VAS) aboard the GOES-6 upon numerical integrat...
    File Type:
    Filetype[PDF - 1.95 MB]
    File Type:
    Filetype[PDF - 1.95 MB]
    A comparison of forecast guidance derived from isentropic and sigma coordinate regional models
    Cite
    Filetype[PDF - 1.99 MB]
    Personal Author:
    Black, Thomas
    1986 | Office note (National Centers for Environmental Prediction (U.S.)) ; 317
    Description:
    Forecasts from an isentropic coordinate model employing a sigma coordinate subdomain are compared with those from two of the National Weather Service'...
    File Type:
    Filetype[PDF - 1.99 MB]
    File Type:
    Filetype[PDF - 1.99 MB]
    An operational marine fog prediction model
    Cite
    Filetype[PDF - 770.17 KB]
    Personal Author:
    Alpert, Jordan C. ;
    Feit, David M.
    1990 | Office note (National Centers for Environmental Prediction (U.S.)) ; 371
    Description:
    A major concern to the National Weather Service marine operations is the problem of forecasting advection fogs at sea. Currently fog forecasts are iss...
    File Type:
    Filetype[PDF - 770.17 KB]
    File Type:
    Filetype[PDF - 770.17 KB]
    Medium range forecast model 500MB forecast skill levels 1982-1990
    Cite
    Filetype[PDF - 1.17 MB]
    Personal Author:
    Hirano, Robert Y.
    1991 | Office note (National Centers for Environmental Prediction (U.S.)) ; 378
    Description:
    A seasonal evaluation of Spectral Medium-Range Forecast Model (MRF) 500mb forecast performance, over the hemispheres between 20 and 80 degrees, is sum...
    File Type:
    Filetype[PDF - 1.17 MB]
    File Type:
    Filetype[PDF - 1.17 MB]
    A comparison of the LFM, spectral, and ECMWF numerical model forecasts of deepening oceanic cyclones during one cool season
    Cite
    Filetype[PDF - 1001.01 KB]
    Personal Author:
    Auer, Stephen J.
    1986 | Office note (National Centers for Environmental Prediction (U.S.)) ; 312
    Description:
    "This study compares the performances of the NMC Limited-Area Fine Mesh Model (LFM), the NMC Spectral Model (which is currently called the Global Avia...
    File Type:
    Filetype[PDF - 1001.01 KB]
    File Type:
    Filetype[PDF - 1001.01 KB]
    Zonal mean temperature forecasts by the NMC global spectral model
    Cite
    Filetype[PDF - 2.70 MB]
    Personal Author:
    Gerrity, Joseph P.
    1983 | Office note (National Centers for Environmental Prediction (U.S.)) ; 275
    Description:
    "Beginning with data for September 1981, a systematic verification program has been run by Mark Rozwodoski to diagnose, on a monthly basis, the zonal ...
    File Type:
    Filetype[PDF - 2.70 MB]
    File Type:
    Filetype[PDF - 2.70 MB]
    The Observational Error Correlation Functions and Structure Functions for Wind Profiling Doppler Radars, Results from the Colorado Network
    Cite
    Filetype[PDF - 808.34 KB]
    Personal Author:
    Collins, William G.
    1987 | Office note (National Centers for Environmental Prediction (U.S.)) ; 332
    Description:
    This paper presents structure and correlation functions both for the vertical and for time for the doppler wind profiler data from four profilers in C...
    File Type:
    Filetype[PDF - 808.34 KB]
    File Type:
    Filetype[PDF - 808.34 KB]
    Comparative Evaluation of ECMWF and NMC Spectral Forecasts, February - July 1982
    Cite
    Filetype[PDF - 563.64 KB]
    Personal Author:
    Stackpole, John D. ;
    Tracton, M. Steven
    1982 | Office note (National Centers for Environmental Prediction (U.S.)) ; 264
    Description:
    "Since February 1982 NMC has been receiving the 24 through 120 hour ECMWF forecasts, from 1200 GMT initial data, of 500 mb height and sea level pressu...
    File Type:
    Filetype[PDF - 563.64 KB]
    File Type:
    Filetype[PDF - 563.64 KB]
    The NCEP Eta model post processor, a documentation
    Cite
    Filetype[PDF - 244.40 KB]
    Personal Author:
    Treadon, Russell ;
    Chuang, Hui-ya
    ...
    2001 | Office note (National Centers for Environmental Prediction (U.S.)) ; 438
    Description:
    "This Office Note describes the post processor for the National Center for Environmental Prediction Eta model. Preliminary to this discussion is a bri...
    File Type:
    Filetype[PDF - 244.40 KB]
    File Type:
    Filetype[PDF - 244.40 KB]
    Optimal non-linear objective analysis
    Cite
    Filetype[PDF - 2.06 MB]
    Personal Author:
    Lorenc, Andrew C.
    1986 | Office note (National Centers for Environmental Prediction (U.S.)) ; 324
    Description:
    "Some practical problems in objective' analysis for numerical weather prediction are best solved by using non-linear analysis equations. They include ...
    File Type:
    Filetype[PDF - 2.06 MB]
    File Type:
    Filetype[PDF - 2.06 MB]
    Sets of optimally diversified polyhedral orientations
    Cite
    Filetype[PDF - 2.82 MB]
    Personal Author:
    Purser, Robert James
    2017 | Office note (National Centers for Environmental Prediction (U.S.)) ; 489
    Description:
    Efficient integration of global atmospheric models on massively parallel computers is driving the move towards the use of discretizations based on reg...
    File Type:
    Filetype[PDF - 2.82 MB]
    File Type:
    Filetype[PDF - 2.82 MB]
    Some performance comparisons between NMC's spectral model and the seven-layer primitive equation model
    Cite
    Filetype[PDF - 729.32 KB]
    Personal Author:
    Marks, Donald G. ;
    Stackpole, John D.
    1983 | Office note (National Centers for Environmental Prediction (U.S.)) ; 277
    Description:
    The performance of NMC's new global spectral model is compared to the performance of the older, seven-layer, grid-point primitive equation model which...
    File Type:
    Filetype[PDF - 729.32 KB]
    File Type:
    Filetype[PDF - 729.32 KB]
    An objective method to modify NMC/NWP model mean sea level pressure progs
    Cite
    Filetype[PDF - 1.34 MB]
    Personal Author:
    Hughes, Francis D.
    1982 | Office note (National Centers for Environmental Prediction (U.S.)) ; 259
    Description:
    "Almost since the very beginning of the mean sea level pressure (MSLP) analysis scheme many years ago in the U.S. and elsewhere, man has attempted to ...
    File Type:
    Filetype[PDF - 1.34 MB]
    File Type:
    Filetype[PDF - 1.34 MB]
    Real-time bathythermograph analyses
    Cite
    Filetype[PDF - 630.90 KB]
    Personal Author:
    Gerald, Vera M.
    1984 | Office note (National Centers for Environmental Prediction (U.S.)) ; 290
    Description:
    "This report gives a synopsis of the weekly real-time experimental bathythermograph (BATHY) sea surface and 100 meter subsurface temperature analyses ...
    File Type:
    Filetype[PDF - 630.90 KB]
    File Type:
    Filetype[PDF - 630.90 KB]
    Discrete generalized hybrid vertical coordinates by a mass, energy and angular momentum conserving vertical finite-difference scheme
    Cite
    Filetype[PDF - 330.47 KB]
    Personal Author:
    Juang, Hann-Ming Henry
    2005 | Office note (National Centers for Environmental Prediction (U.S.)) ; 445
    Description:
    A detailed discretization of a hydrostatic primitive equation global atmospheric model on spherical and generalized hybrid vertical coordinates is des...
    File Type:
    Filetype[PDF - 330.47 KB]
    File Type:
    Filetype[PDF - 330.47 KB]
    Recent changes in the new medium-range forecast (MRF) model
    Cite
    Filetype[PDF - 1.84 MB]
    Personal Author:
    Caplan, Peter
    1985 | Office note (National Centers for Environmental Prediction (U.S.)) ; 307
    Description:
    "On January 26, 1985, two modifications to the daily experimental runs of the new medium-range spectral model were simultaneously implemented; one was...
    File Type:
    Filetype[PDF - 1.84 MB]
    File Type:
    Filetype[PDF - 1.84 MB]
    Hybrid coordinate employing a generalization of the Montgomery potential
    Cite
    Filetype[PDF - 817.92 KB]
    Personal Author:
    Purser, Robert James ;
    Kar, S. K.
    ...
    2006 | Office note (National Centers for Environmental Prediction (U.S.)) ; 444
    Description:
    We describe a procedure by which a hybrid vertical coordinate, together with an associated generalized Montgomery potential, are defined in such a way...
    File Type:
    Filetype[PDF - 817.92 KB]
    File Type:
    Filetype[PDF - 817.92 KB]
    Fast NN emulation of the super-parameterization in the multi-scale modeling framework
    Cite
    Filetype[PDF - 3.81 MB]
    Personal Author:
    Krasnopolʹsky, V. M. ;
    Fox-Rabinovitz, Michael
    ...
    2014 | Office note (National Centers for Environmental Prediction (U.S.)) ; 476
    Description:
    Extension of the NN emulation framework for superparameterization (SP) has been developed. The current PNNL-MMF has been used to provide the training ...
    File Type:
    Filetype[PDF - 3.81 MB]
    File Type:
    Filetype[PDF - 3.81 MB]
    Development of a scientific basis for weather prediction
    Cite
    Filetype[PDF - 2.51 MB]
    Personal Author:
    Phillips, Norman A., 1923-
    1987 | Office note (National Centers for Environmental Prediction (U.S.)) ; 331
    Description:
    "It was about forty year ago that the present World Meteorologist Organization took shape as a reorganized form of its illustrious predecessor, the In...
    File Type:
    Filetype[PDF - 2.51 MB]
    File Type:
    Filetype[PDF - 2.51 MB]
    Note on cloud cover of the ECMWF nature run used for OSSE/NPOESS project
    Cite
    Filetype[PDF - 3.15 MB]
    Personal Author:
    Masutani, Michiko ;
    Campana, Kenneth A.
    ...
    1999 | Office note (National Centers for Environmental Prediction (U.S.)) ; 427
    Description:
    "Global atmospheric observing systems, such as those on Polar-orbiting Operational Environmental Satellites (POES), provide the basic data for Numeric...
    File Type:
    Filetype[PDF - 3.15 MB]
    File Type:
    Filetype[PDF - 3.15 MB]
    Solving the Laplace Equation in a Right-Angled Bicorn and Constructing Smooth Blending Functions for Conformal Overset Grids
    Cite
    Filetype[PDF - 1.12 MB]
    Personal Author:
    Purser, Robert James
    2020 | Office note (National Centers for Environmental Prediction (U.S.)) ; 501
    Description:
    A significant problem very often encountered when using a polyhedral grid framework for global numerical weather simulation is the ‘imprinting’ of...
    File Type:
    Filetype[PDF - 1.12 MB]
    File Type:
    Filetype[PDF - 1.12 MB]
    Impact of the subgrid representation of parameterized convection on simulated climatology
    Cite
    Filetype[PDF - 2.82 MB]
    Personal Author:
    Hong, Song-You
    2000 | Office note (National Centers for Environmental Prediction (U.S.)) ; 428
    Description:
    The sensitivity of general circulation models (GCMs) to the subgrid representation of parameterized convection is investigated. Various experiments te...
    File Type:
    Filetype[PDF - 2.82 MB]
    File Type:
    Filetype[PDF - 2.82 MB]
    Estimation and removal of forecast cycle stray
    Cite
    Filetype[PDF - 2.14 MB]
    Personal Author:
    Thiébaux, H. J. ;
    Morone, Lauren L.
    1988 | Office note (National Centers for Environmental Prediction (U.S.)) ; 341.
    Description:
    We have found spatial and temporal coherencies in the departures of shortrange- forecasts from observed and analyzed geopotential fields, which can be...
    File Type:
    Filetype[PDF - 2.14 MB]
    File Type:
    Filetype[PDF - 2.14 MB]
    Cloud-drift wind estimates during FGGE
    Cite
    Filetype[PDF - 1.15 MB]
    Personal Author:
    McPherson, Ronald D.
    1984 | Office note (National Centers for Environmental Prediction (U.S.)) ; 288
    Description:
    "During the FGGE year of 1979, five meteorological satellites were positioned in geostationary orbit at intervals of approximately 70 degrees of longi...
    File Type:
    Filetype[PDF - 1.15 MB]
    File Type:
    Filetype[PDF - 1.15 MB]
    Skill of medium range forecasts
    Cite
    Filetype[PDF - 911.39 KB]
    Personal Author:
    Hughes, Francis D.
    1992 | Office note (National Centers for Environmental Prediction (U.S.)) ; 385
    Description:
    "This paper depicts in a graphical manner the skill of the Medium Range (3-10 day) man and machine (numerical model guidance) forecasts. It will be up...
    File Type:
    Filetype[PDF - 911.39 KB]
    File Type:
    Filetype[PDF - 911.39 KB]
    Development of neural network convection parameterizations for climate and NWP models using Cloud Resolving Model simulations
    Cite
    Filetype[PDF - 1.70 MB]
    Personal Author:
    Krasnopolʹsky, V. M. ;
    Fox-Rabinovitz, Michael
    ...
    2011 | Office note (National Centers for Environmental Prediction (U.S.)) ; 469
    Description:
    A novel approach based on the neural network (NN) technique is formulated and used for development of a NN ensemble stochastic convection parameteriza...
    File Type:
    Filetype[PDF - 1.70 MB]
    File Type:
    Filetype[PDF - 1.70 MB]
    Introduction to a new fog diagnostic scheme
    Cite
    Filetype[PDF - 779.26 KB]
    Personal Author:
    Zhou, Binbin
    2011 | Office note (National Centers for Environmental Prediction (U.S.)) ; 466
    Description:
    Conventional fog prediction is based on the surface visibility threshold "< 1000m", which is computed solely from the surface cloud liquid water conte...
    File Type:
    Filetype[PDF - 779.26 KB]
    File Type:
    Filetype[PDF - 779.26 KB]
    Estimating observation impact signals in NCEP GSI using the Lanczos method
    Cite
    Filetype[PDF - 830.48 KB]
    Personal Author:
    Wei, Mozheng ;
    Pondeca, Manuel S. F. V. de
    ...
    2010 | Office note (National Centers for Environmental Prediction (U.S.)) ; 465
    Description:
    Despite the tremendous progress that has been made in data assimilation (DA) methodology, observing systems which reduce observation errors, and model...
    File Type:
    Filetype[PDF - 830.48 KB]
    File Type:
    Filetype[PDF - 830.48 KB]
    A maritime retrieval program for cloudy satellite temperature retrievals over the northern hemisphere oceans
    Cite
    Filetype[PDF - 2.12 MB]
    Personal Author:
    Phillips, Norman A., 1923-
    1981 | Office note (National Centers for Environmental Prediction (U.S.)) ; 228
    Description:
    "When cloudiness is sufficiently great, the NESS temperature retrieval methods rely heavily on the use of the four microwave radiances from the MSU in...
    File Type:
    Filetype[PDF - 2.12 MB]
    File Type:
    Filetype[PDF - 2.12 MB]
    The regional profiles data base
    Cite
    Filetype[PDF - 1.32 MB]
    Personal Author:
    Tuccillo, James J.
    1988 | Office note (National Centers for Environmental Prediction (U.S.)) ; 339
    Description:
    "The Regional Profile Database is a VSAM based random access database of NGM forecast sigma layer and diagnostic data at selected locations over North...
    File Type:
    Filetype[PDF - 1.32 MB]
    File Type:
    Filetype[PDF - 1.32 MB]
    Linear computational stability of the core-contained 4th order LFM
    Cite
    Filetype[PDF - 350.24 KB]
    Personal Author:
    Gerrity, Joseph P.
    1983 | Office note (National Centers for Environmental Prediction (U.S.)) ; 274
    Description:
    "During early March 1983 evidence surfaced that suggested the presence of linear computational stability within the LFM model. The numerical method us...
    File Type:
    Filetype[PDF - 350.24 KB]
    File Type:
    Filetype[PDF - 350.24 KB]
    LFM 1988, a documentation
    Cite
    Filetype[PDF - 91.79 KB]
    Personal Author:
    Pauley, Patricia M. ;
    Deaven, Dennis G.
    1989 | Office note (National Centers for Environmental Prediction (U.S.)) ; 350
    Description:
    Describes the Limited Area Fine Mesh (LFM) model as it existed in the National Meteorological Center in August 1988.
    File Type:
    Filetype[PDF - 91.79 KB]
    File Type:
    Filetype[PDF - 91.79 KB]
    The WMO format and the exchange of weather product messages in gridded binary form
    Cite
    Filetype[PDF - 2.94 MB]
    Personal Author:
    Stackpole, John D.
    1993 | Office note (National Centers for Environmental Prediction (U.S.)) ; 388
    Description:
    "The World Meteorological Organization (WMO) Commission for Basic Systems (CBS) Extraordinary Meeting Number VIII (1985) approved a general purpose, b...
    File Type:
    Filetype[PDF - 2.94 MB]
    File Type:
    Filetype[PDF - 2.94 MB]
    Portfolio of operational and developmental marine meteorological and oceanographic products
    Cite
    Filetype[PDF - 2.95 MB]
    Personal Author:
    Burroughs, Lawrence D.
    1995 | Office note (National Centers for Environmental Prediction (U.S.)) ; 412
    Description:
    In this Technical Memorandum brief descriptions of the current operational and developmental marine meteorological and oceanographic products of the N...
    File Type:
    Filetype[PDF - 2.95 MB]
    File Type:
    Filetype[PDF - 2.95 MB]
    A practical approximation to optimal 4-dimensional objective analysis
    Cite
    Filetype[PDF - 2.23 MB]
    Personal Author:
    Lorenc, Andrew C.
    1987 | Office note (National Centers for Environmental Prediction (U.S.)) ; 328
    Description:
    An iterative four-dimensional objective analysis scheme is described. The method is derived by approximating a variational algorithm which should give...
    File Type:
    Filetype[PDF - 2.23 MB]
    File Type:
    Filetype[PDF - 2.23 MB]
    Revision of convection and vertical diffusion schemes in the NCEP Global Forecast System
    Cite
    Filetype[PDF - 1.37 MB]
    Personal Author:
    Han, Jongil ;
    Pan, Hua-Lu
    2010 | Office note (National Centers for Environmental Prediction (U.S.)) ; 464
    Description:
    A new physics package containing revised convection and planetary boundary layer (PBL) schemes in the National Centers for Environmental Prediction's ...
    File Type:
    Filetype[PDF - 1.37 MB]
    File Type:
    Filetype[PDF - 1.37 MB]
    The Global Data Base in 1980
    Cite
    Filetype[PDF - 2.08 MB]
    Personal Author:
    McPherson, Ronald D.
    1980 | Office note (National Centers for Environmental Prediction (U.S.)) ; 219
    Description:
    "We have previously noted that one of the most important trends affecting operational meteorology over the past decade or so is the changing character...
    File Type:
    Filetype[PDF - 2.08 MB]
    File Type:
    Filetype[PDF - 2.08 MB]
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