Defining a Sea Ice Flag for Envisat Altimetry Mission
Defining a Sea Ice Flag for Envisat Altimetry Mission
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DOI：
10.1109/lgrs.2008.2005275
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发表时间：
2009
影响因子：
4.8
通讯作者：
N. Tran;F. Girard-Ardhuin;R. Ezraty;Hui Feng;P. Féménias
中科院分区：
文献类型：
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作者：
N. Tran;F. Girard-Ardhuin;R. Ezraty;Hui Feng;P. Féménias
这封信介绍了为环境测高任务开发的海冰旗帜算法，以在质量控制过程中检测海冰损坏的海面高度数据。该算法利用了被动和主动微波传感器在同一平台上的优势，并同时记录了测量结果。通过将SSM/I传感器的海冰浓度日网格和QuikSCAT卫星上SeaWinds散射计的后向散射截面组合而成的参考图与沿航迹的Envisat数据进行配置，对其性能进行了评估。
This letter presents the development of a sea ice flag algorithm for the Envisat altimetry mission to detect sea ice corrupted sea surface height data within quality control processing. The algorithm takes advantage of having both passive and active microwave sensors on the same platform with coregistered measurements. Its performances have been evaluated based on collocations between the along-track Envisat data with reference maps built from combination of daily grids of sea ice concentration from SSM/I sensors and backscatter cross section from SeaWinds scatterometer on QuikSCAT satellite.