气候变化领域集成服务门户(CCPortal): Uncertainties in ocean latent heat flux variations over recent decades in satellite-based estimates and reduced observation reanalyses

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DOI	10.1175/JCLI-D-19-0954.1
	Uncertainties in ocean latent heat flux variations over recent decades in satellite-based estimates and reduced observation reanalyses
	Robertson F.R.; Roberts J.B.; Bosilovich M.G.; Bentamy A.; Clayson C.A.; Fennig K.; Schröder M.; Tomita H.; Compo G.P.; Gutenstein M.; Hersbach H.; Kobayashi C.; Ricciardulli L.; Sardeshmukh P.; Slivinski L.C.
发表日期	2020
ISSN	0894-8755
起始页码	8415
结束页码	8437
卷号	33 期号:19
英文摘要	Four state-of-the-art satellite-based estimates of ocean surface latent heat fluxes (LHFs) extending over three decades are analyzed, focusing on the interannual variability and trends of near-global averages and regional patterns. Detailed intercomparisons are made with other datasets including 1) reduced observation reanalyses (RedObs) whose exclusion of satellite data renders them an important independent diagnostic tool; 2) a moisture budget residual LHF estimate using reanalysis moisture transport, atmospheric storage, and satellite precipitation; 3) the ECMWF Reanalysis 5 (ERA5); 4) Remote Sensing Systems (RSS) single-sensor passive microwave and scatterometer wind speed retrievals; and 5) several sea surface temperature (SST) datasets. Large disparities remain in near-global satellite LHF trends and their regional expression over the 1990–2010 period, during which time the interdecadal Pacific oscillation changed sign. The budget residual diagnostics support the smaller RedObs LHF trends. The satellites, ERA5, and RedObs are reasonably consistent in identifying contributions by the 10-m wind speed variations to the LHF trend patterns. However, contributions by the near-surface vertical humidity gradient from satellites and ERA5 trend upward in time with respect to the RedObs ensemble and show less agreement in trend patterns. Problems with wind speed retrievals from Special Sensor Microwave Imager/Sounder satellite sensors, excessive upward trends in trends in Optimal Interpolation Sea Surface Temperature (OISST AVHRR-Only) data used in most satellite LHF estimates, and uncertainties associated with poor satellite coverage before the mid-1990s are noted. Possibly erroneous trends are also identified in ERA5 LHF associated with the onset of scatterometer wind data assimilation in the early 1990s. Ó 2020 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Atmospheric humidity; Atmospheric temperature; Budget control; Digital storage; Heat flux; Latent heat; Meteorological instruments; Microwave sensors; Moisture; Remote sensing; Satellites; Submarine geophysics; Surface properties; Surface waters; Uncertainty analysis; Wind; American meteorological societies; Copyright informations; Inter-decadal pacific oscillations; Interannual variability; Remote sensing system; Satellite precipitation; Sea surface temperature (SST); Special sensor microwave imagers; Oceanography; annual variation; data assimilation; data set; latent heat flux; remote sensing; satellite data; sea surface temperature; trend analysis; uncertainty analysis; wind velocity; Satellites
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171083
作者单位	NASA Marshall Space Flight Center, Huntsville, AL, United States; NASA GSFC Global Modeling and Assimilation Office, Greenbelt, MD, United States; Laboratoire d’Océanographie Spatiale, Institut Français pour la Recheche et l’Exploitation de la Mer (IFREMER), Brest, France; Woods Hole Oceanographic Institution, Woods Hole, MA, United States; Satellite-Based Climate Monitoring, Deutscher Wetterdienst, Offenbach, Germany; Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; NOAA Physical Sciences Laboratory, Boulder, CO, United States; European Centre for Medium-Range Weather Forecasts, Reading, United Kingdom; Meteorological Research Institute, Tsukuba, Japan; Remote Sensing Systems, Santa Rosa, CA, United States
推荐引用方式 GB/T 7714	Robertson F.R.,Roberts J.B.,Bosilovich M.G.,et al. Uncertainties in ocean latent heat flux variations over recent decades in satellite-based estimates and reduced observation reanalyses[J],2020,33(19).
APA	Robertson F.R..,Roberts J.B..,Bosilovich M.G..,Bentamy A..,Clayson C.A..,...&Slivinski L.C..(2020).Uncertainties in ocean latent heat flux variations over recent decades in satellite-based estimates and reduced observation reanalyses.Journal of Climate,33(19).
MLA	Robertson F.R.,et al."Uncertainties in ocean latent heat flux variations over recent decades in satellite-based estimates and reduced observation reanalyses".Journal of Climate 33.19(2020).