i
Upper-troposphere and lower-stratosphere water vapor retrievals from the 1400 and 1900 nm water vapor bands
-
Published Date:
2015
Source:Atmospheric Measurement Techniques, 8(3), 1147-1156.
- File Format:
- RIS
Details:
-
Personal Author:
-
Description:Measuring water vapor in the upper troposphere and lower stratosphere is difficult due to the low mixing ratios found there, typically only a few parts per million. Here we examine near-infrared spectra acquired with the Solar Spectral Flux Radiometer (SSFR) during the first science phase of the NASA Airborne Tropical TRopopause EXperiment (ATTREX). From the 1400 and 1900 nm absorption bands we infer water vapor amounts in the tropical tropopause layer and adjacent regions between altitudes of 14 and 18 km. We compare these measurements to solar transmittance spectra produced with the MODerate resolution atmospheric TRANsmission (MODTRAN) radiative transfer model, using in situ water vapor, temperature, and pressure profiles acquired concurrently with the SSFR spectra. Measured and modeled transmittance values agree within 0.002, with some larger differences in the 1900 nm band (up to 0.004). Integrated water vapor amounts along the absorption path lengths of 3 to 6 km varied from 1.26 x 10(-4) to 4.59 x 10(-4) g cm(-2). A 0.002 difference in absorptance at 1367 nm results in a 3.35 x 10(-5) g cm(-2) change of integrated water vapor amounts; 0.004 absorptance change at 1870 nm results in 5.50 x 10(-5) g cm(-2) of water vapor. These are 27% (1367 nm) and 44% (1870 nm) differences at the lowest measured value of water vapor (1.26 x 10(-4) g cm(-2)) and 7% (1367 nm) and 12% (1870 nm) differences at the highest measured value of water vapor (4.59 x 10(-4) g cm(-2)). A potential method for extending this type of measurement from aircraft flight altitude to the top of the atmosphere is discussed.
-
Document Type:
-
Main Document Checksum:urn:sha256:24f22028e40f395e75e305e92906e44af241639ab6d2ae3456ef3a8ebe230cf4
- File Type:
-
Supporting Files:No Additional Files
Related Documents:
-
-
Personal Author:Raczka, B. ; Biraud, S. C. ; ...Published Date:2017Source:Journal of Geophysical Research-Biogeosciences, 122(8), 1969-1987.Description:The seasonal pattern of the carbon isotope content (delta C-13) of atmospheric CO2 depends on local and nonlocal land-atmosphere exchange and atmosphe...
Personal Author:Dieng, D. ; Laux, P. ; ...Published Date:2018Source:Journal of Geophysical Research-Atmospheres, 123(15), 7950-7973.Description:In this study, we analyze a set of agroclimatological indices across West Africa and assess their projected changes for the future. We apply the regio...
Personal Author:Kenagy, H. S. ; Sparks, T. L. ; ...Published Date:2018Source:Journal of Geophysical Research-Atmospheres, 123(17), 9813-9827.Description:Although urban NOx lifetimes have been examined extensively during summertime conditions, wintertime NOx chemistry has been comparatively less studied...
Personal Author:Kim, J. ; Johnson, L. E. ; ...Published Date:2018Source:Water, 10(7), 21.Description:Soil moisture retention (SMR) capacity plays a key role in estimating the direct runoff when a multi-pulse storm event occurs. It is very important to...
Personal Author:Fairall, C. W. ; Matrosov, S. Y. ; ...Published Date:2018Source:Journal of Atmospheric and Oceanic Technology, 35(3), 593-608.Description:The NOAA W-band radar was deployed on a P-3 aircraft during a study of storm fronts off the U.S. West Coast in 2015 in the second CalWater (CalWater-2...
Personal Author:Mahoney, K. ; Swales, D. ; ...Published Date:2018Source:Journal of Climate, 31(16), 6281-6297.Description:Atmospheric rivers (ARs) are well-known producers of precipitation along the U.S. West Coast. Depending on their intensity, orientation, and location ...
Personal Author:Byju, P. ; Dommenget, D. ; ...Published Date:2018Source:Geophysical Research Letters, 45(15), 7683-7691.Description:Sea surface temperature anomalies (SSTA) in portions of the extratropics are known to recur from one winter to the next without persisting through the...
Personal Author:Richardson, K. ; Asmutis-Silvia, R. ; ...Published Date:2019Source:Marine Pollution Bulletin, 138, 222-229.Description:Abandoned, lost or discarded fishing gear (ALDFG) comprises a significant amount of global marine debris, with diverse impacts to marine environments,...
Personal Author:Chakraborty, A. ; Ervens, B. ; ...Published Date:2016Source:Journal of Geophysical Research-Atmospheres, 121(8), 4317-4332.Description:Size-resolved fog water samples were collected in two consecutive winters at Kanpur, a heavily polluted urban area of India. Samples were analyzed by ...
Personal Author:Heiblum, R. H. ; Altaratz, O. ; ...Published Date:2016Source:Journal of Geophysical Research-Atmospheres, 121(11), 6336-6355.Description:We study the evolution of warm convective cloud fields using large eddy simulations of continental and trade cumulus. Individual clouds are tracked a ...
Personal Author:Hartery, S. ; Commane, R. ; ...Published Date:2018Source:Atmospheric Chemistry and Physics, 18(1), 185-202.Description:Methane (CH4) is the second most important greenhouse gas but its emissions from northern regions are still poorly constrained. In this study, we anal...
Personal Author:Jordan, C. E. ; Pszenny, A. A. P. ; ...Published Date:2015Source:Journal of Geophysical Research-Atmospheres, 120(2), 678-694.Description:The Nitrogen, Aerosol Composition, and Halogens on a Tall Tower campaign (February-March 2011) near Boulder, Colorado, investigated nighttime ClNO2 pr...
Personal Author:Membrive, O. ; Crevoisier, C. ; ...Published Date:2017Source:Atmospheric Measurement Techniques, 10(6), 2163-2181.Description:An original and innovative sampling system called AirCore was presented by NOAA in 2010 (Karion et al., 2010). It consists of a long (> 100 m) and nar...
Personal Author:Dias, J. ; Gehne, M. ; ...Published Date:2018Source:Monthly Weather Review, 146(6), 1763-1784.Description:Despite decades of research on the role of moist convective processes in large-scale tropical dynamics, tropical forecast skill in operational models ...
Personal Author:Creamean, J. M. ; Maahn, M. ; ...Published Date:2018Source:Atmospheric Chemistry and Physics, 18(2), 555-570.Description:The Arctic is warming at an alarming rate, yet the processes that contribute to the enhanced warming are not well understood. Arctic aerosols have bee...
Personal Author:Seviour, W. J. M. ; Davis, S. M. ; ...Published Date:2018Source:Geophysical Research Letters, 45(2), 1106-1113.Description:Climate models predict that the Hadley circulation will expand poleward in a warmer climate, a trend which may cause significant changes in global pre...
Personal Author:Buchholz, R. R. ; Hammerling, D. ; ...Published Date:2018Source:Journal of Geophysical Research-Atmospheres, 123(17), 9786-9800.Description:In the Southern Hemisphere and tropics, the main contribution to carbon monoxide (CO) variability is from fire emissions, which are connected to clima...
Personal Author:Fay, A. R. ; Lovenduski, N. S. ; ...Published Date:2018Source:Biogeosciences, 15(12), 3841-3855.Description:The Southern Ocean is highly under-sampled for the purpose of assessing total carbon uptake and its variability. Since this region dominates the mean ...
Personal Author:England, M. ; Polvani, L. ; ...Published Date:2018Source:Journal of Climate, 31(16), 6353-6370.Description:Models project that Antarctic sea ice area will decline considerably by the end of this century, but the consequences remain largely unexplored. Here,...
Personal Author:Marvel, K. ; Pincus, R. ; ...Published Date:2018Source:Geophysical Research Letters, 45(3), 1595-1601.Description:An emerging literature suggests that estimates of equilibrium climate sensitivity (ECS) derived from recent observations and energy balance models are...
-
You May Also Like:
-
Personal Author:Jensen, E. J. ; Pfister, L. ; ...Published Date:2017Source:Bulletin of the American Meteorological Society, 98(1), 129-+.Description:We describe the Global Hawk flights and the measurements made during the NASA Airborne Tropical Tropopause Experiment (ATTREX) 2014 western Pacific ca...