Potential for High Resolution Systematic Global Surface Soil Moisture Retrieval via Change Detection Using Sentinel-1

被引:117
作者
Hornacek, Michael [1 ]
Wagner, Wolfgang [1 ]
Sabel, Daniel [1 ]
Hong-Linh Truong [2 ]
Snoeij, Paul [3 ]
Hahmann, Thomas
Diedrich, Erhard [4 ]
Doubkova, Marcela [1 ]
机构
[1] Vienna Univ Technol, Inst Photogrammetry & Remote Sensing, Vienna Univ Technol, A-1040 Vienna, Austria
[2] Vienna Univ Technol, Distributed Syst Grp, Inst Informat Syst, A-1040 Vienna, Austria
[3] European Space Agcy, European Space Res & Technol Ctr ESTEC, NL-2200 AG Noordwijk, Netherlands
[4] German Aerosp Ctr DLR, German Remote Sensing Data Ctr DFD, Int Ground Segment Div, Oberpfaffenhofen, Germany
关键词
C-band; near real time; Sentinel-1; soil moisture; synthetic aperture radar; ERS SCATTEROMETER; IN-SITU; SPACE; INDEX;
D O I
10.1109/JSTARS.2012.2190136
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The forthcoming two-satellite GMES Sentinel-1 constellation is expected to render systematic surface soil moisture retrieval at 1 km resolution using C-band SAR data possible for the first time fromspace. Owing to the constellation's foreseen coverage over the Sentinel-1 Land Masses acquisition region-global approximately every six days, nearly daily over Europe and Canada depending on latitude-in the high spatial and radiometric resolution Interferometric Wide Swath (IW) mode, the Sentinel-1 mission shows high potential for global monitoring of surface soil moisture by means of fully automatic retrieval techniques. This paper presents the potential for providing such a service systematically over Land Masses and in near real time using a change detection approach, concluding that such a service is-subject to the mission operating as foreseen-expected to be technically feasible. The work presented in this paper was carried out as a feasibility study within the framework of the ESA-funded GMES Sentinel-1 Soil Moisture Algorithm Development (S1-SMAD) project.
引用
收藏
页码:1303 / 1311
页数:9
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