NSSC OpenIR
ON THE QUALITY OF CFOSAT SCATTEROMETER WINDS
Alternative TitleWOS:000519270607173
Lin, Wenming; Portabella, Marcos1; Lang, Shuyan2; Dong, Xiaolong3; Xu, Xingou3; Wang, Zhixiong; He, Yijun
Source Publication2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019)
2019
Pages8343-8346
Language英语
ISSN2153-6996
ISBN978-1-5386-9154-0
AbstractThe sea surface winds from the CFOSAT scatterometer (CFOSCAT) are retrieved using the maximum likelihood estimator, and the inversion residual is used to sort the good quality winds from the poor-quality ones. A two-dimensional variational analysis ambiguity removal (2DVAR) scheme is then applied over the CFOSCAT swath such that a unique wind field is selected from the available local scatterometer wind vector ambiguities. The preliminary results of CFOSCAT Level 2 (L2) processing show that the retrieved wind speed is overestimated under low-wind conditions (w < 4 m/s), and is underestimated at high wind conditions (w > 15 m/s). Moreover, the inversion residual for the sweet swath (where there are more than 10 views) is generally higher than that for the nadir/outer swath. These imply that observations with different geometries (views) at the same WVC are inconsistent with respect to the geophysical model function, and thus a comprehensive calibration is highly demanded. A more detailed assessment of the CFOSCAT wind quality will be carried out after calibration and validation campaign.
KeywordCFOSAT scatterometer wind quality control calibration
Conference NameIEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJUL 28-AUG 02, 2019
Conference PlaceYokohama, JAPAN
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7801
Collection中国科学院国家空间科学中心
Affiliation1.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Peoples R China
2.CSIC, Inst Marine Sci ICM, E-08003 Barcelona, Spain
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Natl Space Sci Ctr, CAS Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Lin, Wenming,Portabella, Marcos,Lang, Shuyan,et al. ON THE QUALITY OF CFOSAT SCATTEROMETER WINDS[C],2019:8343-8346.
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