HIGH-RESOLUTION ENHANCED PRODUCT BASED ON SMAP ACTIVE-PASSIVE APPROACH USING SENTINEL 1A AND 1B SAR DATA

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences

Kim, S.^1¹  Jagdhuber, T.^3²  Das, N. N.^1³  Entekhabi, D.^2⁴  Dunbar, S.^1⁵  Yueh, S.^1⁶ 

[1] German Aerospace Center, Microwaves and Radar Institute, Oberpfaffenhofen, Germany^3;Goddard Space Flight Center, NASA, Greenbelt, MD, USA^4;Jet Propulsion Laboratory, Water and Carbon Cycle Group, Pasadena, USA^1;Massachusetts Institute of Technology, Cambridge, MA, USA^2;Monash University, Melbourne, Australia^5;USDA ARS Hydrology and Remote Sensing Lab, Beltsville, MD, USA^6

关键词: soil moisture;    microwave remote sensing;    active-passive algorithm;    SMAP;    and Sentinel-1A and -1B;   

DOI  :  10.5194/isprs-archives-XLII-5-203-2018

学科分类：地球科学(综合)

来源: Copernicus Publications

【 摘 要 】

SMAP project released a new enhanced high-resolution (3km) soil moisture active-passive product. This product is obtained by combining the SMAP radiometer data and the Sentinel-1A and -1B Synthetic Aperture Radar (SAR) data. The approach used for this product draws heavily from the heritage SMAP active-passive algorithm. Modifications in the SMAP active-passive algorithm are done to accommodate the Copernicus Program’s Sentinel-1A and -1B multi-angular C-band SAR data. Assessment of the SMAP and Sentinel active-passive algorithm has been conducted and results show feasibility of estimating surface soil moisture at high-resolution in regions with low vegetation density (∼ −2). The beta version of this product is released to public on Nov 1st, 2017. This high resolution (3 km) soil moisture product is useful for agriculture, flood mapping, watershed/rangeland management, and ecological/hydrological applications.

【 授权许可】

CC BY