Title :
Soil wetness variations monitoring by multi-temporal passive microwave satellite data analysis
Author :
Zheng, Wei ; Wu, Shengli ; Feng, Haixia
Author_Institution :
Nat. Satellite Meteorol. Center, China Meteorol. Adm., China
Abstract :
The estimation of soil wetness variations is of considerable importance to improve the reliability of flood warning. In this paper, Polarization Ratio Variation Index (PRVI) is presented which, on the basis of long-term multi-temporal Special Sensor Microwave/Image (SSM/I) data, can monitor soil wetness variations at a large scale. Nearly 18-years long time series PRVI are calculated based on the SSM/I data in Huaihe River Basin of China for the 1988-2005 period. Preliminary results achieved for the several important flooding events in Huaihe River Basin from 1988 to 2005 years are described, which confirms the reliability of proposed method.
Keywords :
floods; hydrological techniques; microwave measurement; remote sensing; rivers; soil; AD 1988 to 2005; China; Huaihe river basin; Special Sensor Microwave-Image; data analysis; flood warning; long term multitemporal SSM/I data; multitemporal passive microwave satellite; polarization ratio variation index; soil wetness estimation; soil wetness variation monitoring; time series PRVI; Floods; Microwave theory and techniques; Monitoring; Pixel; Rivers; Satellites; Soil; Huaihe River; PRVI; flood; soil wetness;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5652995
