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Validation of Satellite-Derived Daily Latent Heat Flux over the South China Sea, Compared with Observations and Five Products
[Wang, Dongxiao; Zeng, Lili; Shi, Ping] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Li, Xixi] State Ocean Adm, South China Sea Marine Predict Ctr, Guangzhou, Guangdong, Peoples R China; zenglili@scsio.ac.cn
2013
Source PublicationJOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
ISSN0739-0572
Volume30Issue:8Pages:1820-1832
AbstractThis study describes the development of the South China Sea (SCS) daily satellite-derived latent heat flux (SCSSLH) for the period of 1998-2011 at 0.25 degrees x 0.25 degrees resolution using data mainly from the Tropical Rain Measuring Mission (TRMM) Microwave Imager (TMI). Flux-related variables of daily TMI data smoothed with 3-day running mean were finally chosen because of the best fit with the 1727 high-quality observations from seven moored stations and 24 ship surveys. Near-surface air specific humidity was computed using the global relationship based on satellite precipitable water. Verification against 1016 high-resolution radiosonde profiles from 1998 to 2012 and the time series from the Xisha automatic weather station during 2008-10 indicate that this satellite-derived air specific humidity can reasonably capture observed mean condition and temporal variability. They are therefore used to derive SCSSLH based on the Coupled Ocean-Atmosphere Response Experiment version 3.0 (COARE 3.0) algorithm. Compared with five other latent heat flux productsthe Goddard Satellite-Based Surface Turbulent Fluxes version 2 (GSSTF2), the objectively analyzed air-sea heat fluxes (OAFlux), the Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data version 3 (HOAPS3), the National Centers for Environmental Prediction/Department of Energy Global Reanalysis 2 (NCEP-2), and the European Centre for Medium-Range Weather Forecasts (ECMWF)the daily SCSSLH shows the highest spatial resolution and realistic values in the SCS, with an exception along the northern continental shelf. More importantly, the other five products seem to overestimate the latent heat flux systematically. The flux representation in this study comes not only with a better flux algorithm but also with the improved estimates of bulk variables based on in situ measurements, which further highlights the unique role of high-quality meteorological measurements and atmospheric weather stations in evaluating the air-sea interaction in the SCS.
DepartmentLTO
KeywordAlgorithms Automatic Weather Stations Buoy Observations In Situ Atmospheric Observations Radiosonde Observations Satellite Observations
Subject AreaEngineering, Ocean ; Meteorology & Atmospheric Sciences
Funding OrganizationConstructive comments by three reviewers are gratefully acknowledged. TMI products were downloaded from Remote Sensing Systems (www.ssmi.com). The GSSTF2 latent heat was obtained from the NASA web site (http://disc.sci.gsfc.nasa.gov/precipitation/data-holdings/access/gsstf2.0.shtml). The OAFlux was obtained from the Woods Hole Oceanographic Institution (http://oaflux.whoi.edu/). ECMWF reanalysis was obtained from the ECMWF data server. NCEP-2 was provided by the NOAA CIRES Climate Diagnostics Center. This study was supported by the National Natural Basic Research Program of China (973 Program, Grant 2011CB403501), the Knowledge Innovation Project for Distinguished Young Scholar of the Chinese Academy of Sciences (Grant KZCX2-EW-QN203), the National Natural Science Foundation of China (Grants 41206011 41106028), and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant SQ200916). ; Constructive comments by three reviewers are gratefully acknowledged. TMI products were downloaded from Remote Sensing Systems (www.ssmi.com). The GSSTF2 latent heat was obtained from the NASA web site (http://disc.sci.gsfc.nasa.gov/precipitation/data-holdings/access/gsstf2.0.shtml). The OAFlux was obtained from the Woods Hole Oceanographic Institution (http://oaflux.whoi.edu/). ECMWF reanalysis was obtained from the ECMWF data server. NCEP-2 was provided by the NOAA CIRES Climate Diagnostics Center. This study was supported by the National Natural Basic Research Program of China (973 Program, Grant 2011CB403501), the Knowledge Innovation Project for Distinguished Young Scholar of the Chinese Academy of Sciences (Grant KZCX2-EW-QN203), the National Natural Science Foundation of China (Grants 41206011 41106028), and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant SQ200916). ; Constructive comments by three reviewers are gratefully acknowledged. TMI products were downloaded from Remote Sensing Systems (www.ssmi.com). The GSSTF2 latent heat was obtained from the NASA web site (http://disc.sci.gsfc.nasa.gov/precipitation/data-holdings/access/gsstf2.0.shtml). The OAFlux was obtained from the Woods Hole Oceanographic Institution (http://oaflux.whoi.edu/). ECMWF reanalysis was obtained from the ECMWF data server. NCEP-2 was provided by the NOAA CIRES Climate Diagnostics Center. This study was supported by the National Natural Basic Research Program of China (973 Program, Grant 2011CB403501), the Knowledge Innovation Project for Distinguished Young Scholar of the Chinese Academy of Sciences (Grant KZCX2-EW-QN203), the National Natural Science Foundation of China (Grants 41206011 41106028), and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant SQ200916). ; Constructive comments by three reviewers are gratefully acknowledged. TMI products were downloaded from Remote Sensing Systems (www.ssmi.com). The GSSTF2 latent heat was obtained from the NASA web site (http://disc.sci.gsfc.nasa.gov/precipitation/data-holdings/access/gsstf2.0.shtml). The OAFlux was obtained from the Woods Hole Oceanographic Institution (http://oaflux.whoi.edu/). ECMWF reanalysis was obtained from the ECMWF data server. NCEP-2 was provided by the NOAA CIRES Climate Diagnostics Center. This study was supported by the National Natural Basic Research Program of China (973 Program, Grant 2011CB403501), the Knowledge Innovation Project for Distinguished Young Scholar of the Chinese Academy of Sciences (Grant KZCX2-EW-QN203), the National Natural Science Foundation of China (Grants 41206011 41106028), and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant SQ200916).
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Language英语
Funding OrganizationConstructive comments by three reviewers are gratefully acknowledged. TMI products were downloaded from Remote Sensing Systems (www.ssmi.com). The GSSTF2 latent heat was obtained from the NASA web site (http://disc.sci.gsfc.nasa.gov/precipitation/data-holdings/access/gsstf2.0.shtml). The OAFlux was obtained from the Woods Hole Oceanographic Institution (http://oaflux.whoi.edu/). ECMWF reanalysis was obtained from the ECMWF data server. NCEP-2 was provided by the NOAA CIRES Climate Diagnostics Center. This study was supported by the National Natural Basic Research Program of China (973 Program, Grant 2011CB403501), the Knowledge Innovation Project for Distinguished Young Scholar of the Chinese Academy of Sciences (Grant KZCX2-EW-QN203), the National Natural Science Foundation of China (Grants 41206011 41106028), and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant SQ200916). ; Constructive comments by three reviewers are gratefully acknowledged. TMI products were downloaded from Remote Sensing Systems (www.ssmi.com). The GSSTF2 latent heat was obtained from the NASA web site (http://disc.sci.gsfc.nasa.gov/precipitation/data-holdings/access/gsstf2.0.shtml). The OAFlux was obtained from the Woods Hole Oceanographic Institution (http://oaflux.whoi.edu/). ECMWF reanalysis was obtained from the ECMWF data server. NCEP-2 was provided by the NOAA CIRES Climate Diagnostics Center. This study was supported by the National Natural Basic Research Program of China (973 Program, Grant 2011CB403501), the Knowledge Innovation Project for Distinguished Young Scholar of the Chinese Academy of Sciences (Grant KZCX2-EW-QN203), the National Natural Science Foundation of China (Grants 41206011 41106028), and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant SQ200916). ; Constructive comments by three reviewers are gratefully acknowledged. TMI products were downloaded from Remote Sensing Systems (www.ssmi.com). The GSSTF2 latent heat was obtained from the NASA web site (http://disc.sci.gsfc.nasa.gov/precipitation/data-holdings/access/gsstf2.0.shtml). The OAFlux was obtained from the Woods Hole Oceanographic Institution (http://oaflux.whoi.edu/). ECMWF reanalysis was obtained from the ECMWF data server. NCEP-2 was provided by the NOAA CIRES Climate Diagnostics Center. This study was supported by the National Natural Basic Research Program of China (973 Program, Grant 2011CB403501), the Knowledge Innovation Project for Distinguished Young Scholar of the Chinese Academy of Sciences (Grant KZCX2-EW-QN203), the National Natural Science Foundation of China (Grants 41206011 41106028), and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant SQ200916). ; Constructive comments by three reviewers are gratefully acknowledged. TMI products were downloaded from Remote Sensing Systems (www.ssmi.com). The GSSTF2 latent heat was obtained from the NASA web site (http://disc.sci.gsfc.nasa.gov/precipitation/data-holdings/access/gsstf2.0.shtml). The OAFlux was obtained from the Woods Hole Oceanographic Institution (http://oaflux.whoi.edu/). ECMWF reanalysis was obtained from the ECMWF data server. NCEP-2 was provided by the NOAA CIRES Climate Diagnostics Center. This study was supported by the National Natural Basic Research Program of China (973 Program, Grant 2011CB403501), the Knowledge Innovation Project for Distinguished Young Scholar of the Chinese Academy of Sciences (Grant KZCX2-EW-QN203), the National Natural Science Foundation of China (Grants 41206011 41106028), and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant SQ200916).
WOS IDWOS:000323638000016
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Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/10894
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorzenglili@scsio.ac.cn
Recommended Citation
GB/T 7714
[Wang, Dongxiao,Zeng, Lili,Shi, Ping] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China,et al. Validation of Satellite-Derived Daily Latent Heat Flux over the South China Sea, Compared with Observations and Five Products[J]. JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY,2013,30(8):1820-1832.
APA [Wang, Dongxiao,Zeng, Lili,Shi, Ping] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China,[Li, Xixi] State Ocean Adm, South China Sea Marine Predict Ctr, Guangzhou, Guangdong, Peoples R China,&zenglili@scsio.ac.cn.(2013).Validation of Satellite-Derived Daily Latent Heat Flux over the South China Sea, Compared with Observations and Five Products.JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY,30(8),1820-1832.
MLA [Wang, Dongxiao,et al."Validation of Satellite-Derived Daily Latent Heat Flux over the South China Sea, Compared with Observations and Five Products".JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY 30.8(2013):1820-1832.
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