周武.HY-2B扫描微波辐射计海温产品在典型区域的精度验证和分析[J].海洋通报,2022,(5): |
HY-2B扫描微波辐射计海温产品在典型区域的精度验证和分析 |
The accuracy evaluation and analysis of HY-2B microwave radiometer in typical ocean areas |
投稿时间:2021-12-19 修订日期:2022-02-15 |
DOI:10.11840/j.issn.1001-6392.2022.05.004 |
中文关键词: 海表温度 HY-2B 扫描微波辐射计 海温评估 |
英文关键词:sea surface temperature HY-2B scanning microwave radiometer SST evaluation |
基金项目:南方海洋科学与工程广东省实验室(广州)人才团队引进重大专项(GML2019ZD0302) |
|
摘要点击次数: 249 |
全文下载次数: 0 |
中文摘要: |
“海洋二号B”卫星(HY-2B)于2018年10月25日发射,是我国第二颗海洋动力环境探测卫星,其上搭载有包括扫描微波辐射计(SMR)在内的多个载荷,海表面温度(SST)是SMR的主要产品之一。本文分别利用NOAA提供的iQuam实测海温数据、CORIOLIS卫星WINDSAT反演的海温遥感产品、NCEP模式海温数据,在两个典型区域,对2020年1月1日至2020年12月31日期间的HY-2B/SMR海温产品进行了验证,其中HY-2B/SMR与iQuam实测海温的Bias为0.004℃,RMSE为0.65℃左右,CORR高于0.95。通过进一步分析,由区域A的分析结果揭示出HY-2B/SMR海温产品精度随纬度变化的规律及其原因,同时,由区域B的分析结果揭示出陆地、岛礁以及RFI对海温总体反演精度的影响约为0.1℃。 |
英文摘要: |
"Haiyang-2B" satellite (HY-2B) launched on October 25 of 2018 is the second marine dynamic environment satellite of China. Multiple loads including Scanning Microwave Radiometer (SMR) are mounted on HY-2B and Sea Surface Temperature (SST) is one of the main products of SMR. This study evaluated the SST of HY-2B/SMR in two typical ocean areas from January 1, 2020 to December 31, 2020 using NOAA iQuam in-situ SST, CORIOLIS/Windsat SST, and NCEP reanalysis SST, Among them, the Bias measured by HY-2B/SMR and iQuam is 0.004℃, the RMSE is about 0.65℃, and the CORR is higher than 0.95. Through further analysis, the results of region A reveal the reason of HY-2B /SMR SST product accuracy changing with latitude. Meanwhile, the results of region B reveal that the impact of land, island and RFI on the overall SST retrieval accuracy is about 0.1℃. |
查看全文 下载PDF阅读器 |
关闭 |