Large-scale soil moisture mapping in western Africa using the ERS scatterometer

被引:85
作者
Wagner, W [1 ]
Scipal, K
机构
[1] Vienna Univ Technol, Inst Photogrammetry & Remote Sensing, Vienna, Austria
[2] German Aerosp Res Estab, DLR, Wessling, Germany
来源
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2000年 / 38卷 / 04期
关键词
Africa; drought; ERS scatterometer; soil moisture;
D O I
10.1109/36.851761
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Water is a critical resource in western Africa, and droughts are a serious threat to the population and the environment. In this paper, a technique to retrieve soil moisture from ERS scatterometer data is applied over a large region covering southern Mall and Burkina Faso. How the method accounts for the wide range of climatic and physiographic conditions encountered in the study area is discussed. An analysis of monthly soil moisture maps covering six years of data shows that the climatic conditions are well reflected in the remotely sensed data.
引用
收藏
页码:1777 / 1782
页数:6
相关论文
共 19 条
[1]  
[Anonymous], GLOBAL PRECIPITATION
[2]  
[Anonymous], 1986, THEORY APPL
[3]  
BARTH H, 1986, MALI GEOGRAPHISCHE L
[4]  
BECK R, 1999, APPL SERVICE DEMONST
[5]  
Dobson M.C., 1998, PRINCIPLES APPL IMAG
[6]  
*EARTH RES OBS SYS, 1999, AFR LAND COV CHAR DA
[7]   Observations and interpretation of seasonal ERS-1 wind scatterometer data over Northern Sahel (Mali) [J].
Frison, PL ;
Mougin, E ;
Hiernaux, P .
REMOTE SENSING OF ENVIRONMENT, 1998, 63 (03) :233-242
[8]   Retrieval of soil moisture and vegetation characteristics by use of ERS-1 wind scatterometer over arid and semi-arid areas [J].
Magagi, RD ;
Kerr, YH .
JOURNAL OF HYDROLOGY, 1997, 188 (1-4) :361-384
[9]   Application of ERS-1 wind scatterometer data to soil frost and soil moisture monitoring in boreal forest zone [J].
Pulliainen, JT ;
Manninen, T ;
Hallikainen, MT .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1998, 36 (03) :849-863
[10]   MICROWAVE BACKSCATTERING AND EMISSION MODEL FOR GRASS CANOPIES [J].
SAATCHI, SS ;
LEVINE, DM ;
LANG, RH .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1994, 32 (01) :177-186