Feasibility of Envisat Data for the Estimation of Snow Pack Characteristics and Areal Fraction of Snow in Boreal Forests
نویسندگان
چکیده
Estimation of snow moisture (total liquid water content) and the fraction of snow covered area (SCA) is investigated by applying multi-year ERS-2 SAR and Envisat ASAR data sets. Additionally, the feasibility of Envisat MERIS for the operative monitoring of SCA in boreal forests is discussed and analysed. An inversion approach for the moisture retrieval from SAR data is introduced. The results concerning space-borne radars suggest that C-band SAR is operationally feasible for both SCA and snow moisture monitoring, even though the accuracy of SAR-based SCA estimates is considerably poorer than that of optical image-based estimates.
منابع مشابه
An investigation on the feasibility of applying MODIS snow cover products in cloudy weather by the employment of its integration with microwave images
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متن کاملمحاسبه تغییرات نقشههای پوشش برفی تهیه شده از تصاویر ماهوارهای MODIS در دورههای فاقد تصویر
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