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Snow Depth Inversion Using the Localized HUT Model Based on FY-3B MWRI Data in the Farmland of Heilongjiang Province, China
L. L. Wu, X. F. Li, K. Zhao and X. M. Zheng; Zhao K(赵凯)
2017
Source PublicationJournal of the Indian Society of Remote Sensing
Volume45Issue:1Pages:89-100
AbstractSnow depth parameter inversion in the farmland using passive microwave remote sensing is of great significance to the agricultural production in Northeast China. Firstly, the Helsinki University of Technology (HUT) snow emission model was validated in the farmland based on microwave radiation imager (MWRI) onboard FengYun-3B satellite (FY-3B). The results showed that there was a big difference between the brightness temperature of HUT model simulation and MWRI for 18.7 GHz horizontal polarization (18.7 H) and 36.5 GHz horizontal polarization (36.5 H). To improve HUT model, the empirical parameter in the model was localized. Then the localized HUT (LHUT) model was built, where the extinction coefficient was calculated by the new extinction coefficient formula. Next, LHUT model was validated based on MWRI data and compared with HUT model. The results showed that LHUT underestimates slightly the brightness temperature with 0.91 and 4.19 K for 18.7 and 36.5 H respectively, and LHUT is superior to HUT model. Finally, the genetic algorithm (GA) was used to invert snow depth based on LHUT. The results showed that snow depth was underestimated with 6.79 cm based on LHUT. The inverted snow depth based on LHUT model is in better agreement with the measured snow depth.
DOI10.1007/s12524-016-0578-1
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iga.ac.cn/handle/131322/7635
Collection湿地与全球变化学科组
Corresponding AuthorZhao K(赵凯)
Recommended Citation
GB/T 7714
L. L. Wu, X. F. Li, K. Zhao and X. M. Zheng,Zhao K. Snow Depth Inversion Using the Localized HUT Model Based on FY-3B MWRI Data in the Farmland of Heilongjiang Province, China[J]. Journal of the Indian Society of Remote Sensing,2017,45(1):89-100.
APA L. L. Wu, X. F. Li, K. Zhao and X. M. Zheng,&赵凯.(2017).Snow Depth Inversion Using the Localized HUT Model Based on FY-3B MWRI Data in the Farmland of Heilongjiang Province, China.Journal of the Indian Society of Remote Sensing,45(1),89-100.
MLA L. L. Wu, X. F. Li, K. Zhao and X. M. Zheng,et al."Snow Depth Inversion Using the Localized HUT Model Based on FY-3B MWRI Data in the Farmland of Heilongjiang Province, China".Journal of the Indian Society of Remote Sensing 45.1(2017):89-100.
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