干旱区生态环境知识资源中心(Arid): Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land

Arid

DOI	10.1016/j.asr.2020.06.043
	Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land
	Frappart, Frederic; Blarel, Fabien; Papa, Fabrice; Prigent, Catherine; Mougin, Eric; Paillou, Philippe; Baup, Frederic; Zeiger, Pierre; Salameh, Edward; Darrozes, Jose; Bourrel, Luc; Remy, Frederique
通讯作者	Frappart, F (corresponding author), Univ Toulouse, CNRS, CNES, IRD,UPS,LEGOS, 14 Ave Edouard Belin, F-31400 Toulouse, France.
来源期刊	ADVANCES IN SPACE RESEARCH
ISSN	0273-1177
EISSN	1879-1948
出版年	2021
卷号	68 期号:2 页码:989-1012
英文摘要	Radar backscattering coefficients from synthetic aperture radars and scatterometers are commonly used to characterize the land surface properties and monitor their temporal evolution. Radar altimetry is mostly used, over land, to provide time series of water stage of lakes, rivers and wetlands and the topography of the ice sheets. Very few studies used the radar altimetry backscattering coefficients for geophysical applications except to determine changes in Arctic lakes state surface, surface soil moisture in semi-arid environments or flood extent at high latitude. As radar altimetry missions acquired data in four frequency bands (mostly C and Ku but also S and Ka), this study proposes the first thorough analysis of the backscattering signatures of land surfaces using observations from ERS-2, Jason-1, ENVISAT, Jason-2 and SARAL radar altimetry missions The spatial and temporal variations of several altimetric information (backscattering coefficient, waveform peakiness, leading edge width and trailing edge slope) are examined at global scale, for each frequency band separately, as well as for their differences. Their relationship with related variations in the surface characteristics (i.e., soil type, soil moisture, presence of water and snow) are evidenced. Finally, spatial patterns and temporal variations computed over selected regions, representative of the major bioclimatic areas, are related to their surface properties and changes. (C) 2020 COSPAR. Published by Elsevier Ltd. All rights reserved.
英文关键词	Radar altimetry Backscattering Land surface properties
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000659783700001
WOS关键词	CONTINENTAL SURFACES ; ICE ; DYNAMICS ; PERFORMANCES ; REGIONS ; MISSION ; COVER
WOS类目	Engineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
来源机构	French National Research Institute for Sustainable Development ; E17
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367993
作者单位	[Frappart, Frederic; Blarel, Fabien; Papa, Fabrice; Zeiger, Pierre; Salameh, Edward; Remy, Frederique] Univ Toulouse, CNRS, CNES, IRD,UPS,LEGOS, 14 Ave Edouard Belin, F-31400 Toulouse, France; [Prigent, Catherine] LERMA, Observ Paris, UMP 8112, 61 Ave Observ, F-75014 Paris, France; [Mougin, Eric; Zeiger, Pierre; Darrozes, Jose; Bourrel, Luc] UMR 5563 CNRS UPS IRD CNES, Geosci Environm Toulouse GET, Observ Midi Pyrenees, 14 Ave Edouard Belin, F-31400 Toulouse, France; [Paillou, Philippe] Univ Bordeaux, Lab Astrophys Bordeaux, UMR 5804, CNRS, F-33600 Pessac, France; [Baup, Frederic] Univ Toulouse, CESBIO Ctr Etud Spatiales Biosphere, INRAE, UPS,CNES,CNRS,IRD, 18 Ave Edouard Belin, F-31401 Toulouse, France; [Salameh, Edward] Normandie Univ, Dept Geosci & Environm, M2C, UNIROUEN,UNICAEN,CNRS, F-76000 Rouen, France
推荐引用方式 GB/T 7714	Frappart, Frederic,Blarel, Fabien,Papa, Fabrice,et al. Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land[J]. French National Research Institute for Sustainable Development, E17,2021,68(2):989-1012.
APA	Frappart, Frederic.,Blarel, Fabien.,Papa, Fabrice.,Prigent, Catherine.,Mougin, Eric.,...&Remy, Frederique.(2021).Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land.ADVANCES IN SPACE RESEARCH,68(2),989-1012.
MLA	Frappart, Frederic,et al."Backscattering signatures at Ka, Ku, C and S bands from low resolution radar altimetry over land".ADVANCES IN SPACE RESEARCH 68.2(2021):989-1012.