Comparison of TMI and AMSR-E sea surface temperatures with Argo near-surface temperatures over the global oceans

CHEN Xingrong; LIU Zenghong; SUN Chaohui; WANG Haiyan

doi:10.1007/s13131-017-1040-0

TMI、AMSR-E全球海表温度与Argo近海表温度的比较

doi: 10.1007/s13131-017-1040-0

1.
国家海洋环境预报中心, 北京, 100081
2.
卫星海洋环境动力学国家重点实验室, 国家海洋局第二海洋研究所, 杭州, 310012;国家海洋局第二海洋研究所, 杭州, 310012
3.
国家海洋局第二海洋研究所, 杭州, 310012

基金项目: The National Basic Research Program (973 Program) of China under contract No. 2013CB430301; the National Natural Science Foundation of China under contract Nos 41440039, 41206022 and 41406022; the Public Science and Technology Research Funds Projects of Ocean under contract No. 201305032.

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出版历程
- 收稿日期: 2016-02-26
- 修回日期: 2016-04-25

Comparison of TMI and AMSR-E sea surface temperatures with Argo near-surface temperatures over the global oceans

1.
National Marine Environmental Forecasting Center, State Oceanic Administration, Beijing 100081, China
2.
State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
3.
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

摘要

摘要: 本文将TMI（Tropical Rainfall Measuring Mission （TRMM）Microwave Imager）和AMSR-E（Advanced Microwave Scanning Radiometer for the Earth Observing System）卫星观测的全球海表温度与Argo浮标观测的近海表温度进行了比较。并检验了影响海温变化的因素，包括风速、水汽含量、液态云和地理位置。结果显示，TMI、AMSR-E海表温度与Argo近海表温度均明显相关。在低风速时，TMI、AMSR-E海表温度整体比Argo近海表温度高。在低风速时，TMI比AMSR-E海表温度更接近Argo近海表温度，但TMI海表温度在高纬可能没有经过良好校正。温度差异显示，在低水汽含量时，TMI和AMSR-E海表温度显示出暖的差异，代表TMI和AMSR-E海表温度在高纬均没有经过良好校正。黑潮延伸区的海表温度变化要比海潮区明显。春季在黑潮延伸区，卫星观测的海表温度与Argo近海表温度差异较小。在低风速时，TMI和AMSR-E海表温度均经过了良好校正，而TMI比AMSR-E效果更好。
- Argo /
- 近海表温度 /
- TropicalRainfallMeasuringMission(TRMM)MicrowaveImager /
- AdvancedMicrowaveScanningRadiometerfortheEarthObservingSystem /
- 海表温度
Abstract: Satellite-derived sea surface temperatures (SSTs) from the tropical rainfall measuring mission (TRMM) microwave imager (TMI) and the advanced microwave scanning radiometer for the earth observing system (AMSR-E) were compared with non-pumped near-surface temperatures (NSTs) obtained from Argo profiling floats over the global oceans. Factors that might cause temperature differences were examined, including wind speed, columnar water vapor, liquid cloud water, and geographic location. The results show that both TMI and AMSR-E SSTs are highly correlated with the Argo NSTs; however, at low wind speeds, they are on average warmer than the Argo NSTs. The TMI performs slightly better than the AMSR-E at low wind speeds, whereas the TMI SST retrievals might be poorly calibrated at high wind speeds. The temperature differences indicate a warm bias of the TMI/AMSR-E when columnar water vapor is low, which can indicate that neither TMI nor AMSR-E SSTs are well calibrated at high latitudes. The SST in the Kuroshio Extension region has higher variability than in the Kuroshio region. The variability of the temperature difference between the satellite-retrieved SSTs and the Argo NSTs is lower in the Kuroshio Extension during spring. At low wind speeds, neither TMI nor AMSR-E SSTs are well calibrated, although the TMI performs better than the AMSR-E.

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参考文献(38)

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文章访问数: 910
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TMI、AMSR-E全球海表温度与Argo近海表温度的比较

doi: 10.1007/s13131-017-1040-0

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出版历程

Comparison of TMI and AMSR-E sea surface temperatures with Argo near-surface temperatures over the global oceans

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出版历程

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