NSSC OpenIR  > 微波遥感部
An analytical algorithm with a wave age factor for altimeter wind speed retrieval
Cheng, Y. C.; Xu, Q.; Liu, Y. G.; Lin, H.; Xiu, P.; Yin XB(殷晓斌); Zong, H. B.; Rong, Z. R.; 北京8701信箱
Department国家863计划微波遥感技术
Source PublicationInternational Journal of Remote Sensing
2008
Volume29Issue:19Pages:5699-5716
ISSN0143-1161
Language英语
KeywordRadar Backscatter Surface Wind Spectrum Model Sea
AbstractBased on the specular reflection theory of electromagnetic waves at rough sea surface and the wind wave spectrum model with a wave age factor, the sea surface wind speeds are retrieved from the normalized radar backscatter cross-section (NRCS) measured by TOPEX/Poseidon (T/P) Ku-band altimeter using the mean square slope (MSS) calculated from the spectrum models of the wind waves and the gravity-capillary waves. A relationship between wave age and non-dimensional wave height is applied to compute the wave age factor using the significant wave height (SWH) and wind speeds obtained from buoy or altimeter simultaneously. The study indicates that the wave age factor has a significant impact on the retrieval of altimeter wind speed. Compared with the operational algorithm for retrieving altimeter wind speed, the wind speed retrieved from the new analytical algorithm based on the wind wave spectrum model with the wave age factor, proposed in this study, can match the buoy measurements better. The effects of the wave age factor on altimeter wind speed retrieval are also shown quantitatively through a series of experiments and measurements. The comparison with the operational algorithm indicates that both the bias and root mean square error (RMSE) between wind speeds retrieved by the proposed analytical algorithm and those observed by the buoy decrease significantly. In the Gulf of Mexico, with the new analytical algorithm, more accurate altimeter wind speeds are retrieved.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1818
Collection微波遥感部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Cheng, Y. C.,Xu, Q.,Liu, Y. G.,et al. An analytical algorithm with a wave age factor for altimeter wind speed retrieval[J]. International Journal of Remote Sensing,2008,29(19):5699-5716.
APA Cheng, Y. C..,Xu, Q..,Liu, Y. G..,Lin, H..,Xiu, P..,...&北京8701信箱.(2008).An analytical algorithm with a wave age factor for altimeter wind speed retrieval.International Journal of Remote Sensing,29(19),5699-5716.
MLA Cheng, Y. C.,et al."An analytical algorithm with a wave age factor for altimeter wind speed retrieval".International Journal of Remote Sensing 29.19(2008):5699-5716.
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