Arid
DOI10.1109/TGRS.2014.2338913
Multiangle Backscattering Observations of Continental Surfaces in Ku-Band (13 GHz) From Satellites: Understanding the Signals, Particularly in Arid Regions
Prigent, Catherine1; Aires, Filipe1,2; Jimenez, Carlos1,2; Papa, Fabrice3,4; Roger, Jack5
通讯作者Prigent, Catherine
来源期刊IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
ISSN0196-2892
EISSN1558-0644
出版年2015
卷号53期号:3页码:1364-1373
英文摘要

Backscattering in Ku-band (13 GHz) over continental surfaces is analyzed, with the Tropical Rainfall Measurement Mission/Precipitation Radar instruments (incidence angles from 0 degrees to 18 degrees), along with observations from the Topex-Poseidon nadir-looking altimeter and the QuikSCAT scatterometer (incidence angles around 50 degrees). The signals from the three instruments are very consistent. The backscattering tends to decrease with increasing vegetation density, as expected, making it possible to classify vegetation density with active microwaves. Over the northern African desert, a very large spatial variability of the backscattering is observed, with both surface and volume scatterings contributing to the signals. The use of multiangle observations does help characterizing the desert types, but in some areas, the ambiguity of the signals is still unexplained. The French-Chinese joint mission "Chinese-French Oceanic SATellite" will carry two active microwave instruments with a large range of incidence angles, from 0 degrees to 50 degrees. We show that the combined use of observations at low and high incidence angles adds information, particularly over desert surfaces.


英文关键词Altimetry radar remote sensing surface roughness
类型Article
语种英语
国家France ; India
收录类别SCI-E
WOS记录号WOS:000343900600019
WOS关键词ERS-1 WIND SCATTEROMETER ; SOIL-MOISTURE ; RADAR ; LAND ; VEGETATION ; SEAWINDS ; RETRIEVAL ; QUIKSCAT ; DESERT
WOS类目Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
来源机构French National Research Institute for Sustainable Development
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/187809
作者单位1.Observ Paris, Lab Etud Rayonnement & Mat Astrophys, F-75014 Paris, France;
2.Estellus, F-75002 Paris, France;
3.IRD, Lab Etud Geophys & Oceanog Spatiales, F-34104 Toulouse, France;
4.IISc, IRD Inst Sci IISc Joint Int Lab, Indo French Cell Water Sci, Bangalore 560012, Karnataka, India;
5.Bur Rech Geol & Minieres, F-45100 Orleans, France
推荐引用方式
GB/T 7714
Prigent, Catherine,Aires, Filipe,Jimenez, Carlos,et al. Multiangle Backscattering Observations of Continental Surfaces in Ku-Band (13 GHz) From Satellites: Understanding the Signals, Particularly in Arid Regions[J]. French National Research Institute for Sustainable Development,2015,53(3):1364-1373.
APA Prigent, Catherine,Aires, Filipe,Jimenez, Carlos,Papa, Fabrice,&Roger, Jack.(2015).Multiangle Backscattering Observations of Continental Surfaces in Ku-Band (13 GHz) From Satellites: Understanding the Signals, Particularly in Arid Regions.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,53(3),1364-1373.
MLA Prigent, Catherine,et al."Multiangle Backscattering Observations of Continental Surfaces in Ku-Band (13 GHz) From Satellites: Understanding the Signals, Particularly in Arid Regions".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 53.3(2015):1364-1373.
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