NOAA/AVHRR sea surface temperature accuracy in the East/Japan Sea  

作　　者：Kyung-Ae Park Eun-Young Lee Xiaofeng Li Sung-Rae Chung Eun-Ha Sohn Sungwook Hong 

机构地区：[1]Department of Earth Science Education/Research Institute of Oceanography,Seoul National University,Seoul,South Korea [2]Department of Science Education,Seoul National University,Seoul,South Korea [3]GST at National Environmental Satellite,Data,and Information Service,National Oceanic and Atmospheric Administration,College Park,MD,USA [4]Satellite Planning Division,National Meteorological Satellite Center,Korea Meteorological Administration,Jincheon,South Korea [5]Satellite Analysis Division,National Meteorological Satellite Center,Korea Meteorological Administration,Jincheon,South Korea

出　　处：《International Journal of Digital Earth》2015年第10期784-804,共21页国际数字地球学报（英文）

基　　金：This study was supported by Korea Meteorological Administration/National Meteorological Satellite Center and‘Long-term change of structure and function in marine ecosystems of Korea’and‘East Asian Seas Time series-I(EAST-I)’projects funded by the Ministry of Oceans and Fisheries,Korea.

摘　　要：Sea surface temperature(SST)retrieved from Advanced Very High Resolution Radiometer(AVHRR)onboard National Oceanic and Atmospheric Administration(NOAA)polar orbiting environmental satellites were validated in the East/Japan Sea(EJS)using surface drifter measurements as ground truths from 2005 to 2010.Overall,the root-mean-square(rms)errors of multichannel SSTs(MCSSTs)and non-linear SSTs(NLSSTs)using global SST coefficients were approximately 0.85℃ and 0.80℃,respectively.An analysis of the SST errors(satellite-drifter)revealed a dependence on the amount of atmospheric moisture.In addition,satellite-derived SSTs tended to be related to wind speeds,particularly during the night.The SST errors also demonstrated diurnal variations with relatively higher rms from 0.80℃ to 1.00℃ during the night than the day,with a small rms of about 0.50℃.Bias also exhibited reasonable diurnal differences,showing small biases during the daytime.Although a satellite zenith angle has been considered in the global SST coefficients,its effect on the SST errors still remained in case of the EJS.Given the diverse use of SST data,the continuous validation and understanding of the characteristic errors of satellite SSTs should be conducted based on extensive in-situ temperature measurements in the global ocean as well as local seas.

关 键 词：sea surface temperature East/Japan Sea AVHRR SST error validation 

分 类 号：P73[天文地球—海洋科学]