Title :
Spatial downscaling of coarse passive radiometer soil moisture using radar, vegetation index and surface temperature
Author :
Lakshmi, Venkat ; Bin Fang ; Narayan, Ujjwal
Author_Institution :
Dept. of Earth & Ocean Sci., Univ. of South Carolina, Columbia, SC, USA
Abstract :
Soil moisture derived from passive microwave radiometers have low spatial resolution due to limitation of antenna size. In the case of many geophysical applications high spatial resolution is desired, examples of these include weather, catchment hydrology and agriculture. In this paper we present two innovative methods to downscale passive soil moisture retrievals using (a) radar backscatter and (b) vegetation index and surface temperature.
Keywords :
agriculture; atmospheric temperature; geophysical techniques; hydrology; radiometers; remote sensing; soil; vegetation mapping; agriculture; antenna size limitation; catchment hydrology; coarse passive radiometer soil moisture spatial downscaling; downscale passive soil moisture retrievals; geophysical applications; high spatial resolution; innovative methods; low spatial resolution; passive microwave radiometers; radar backscatter; surface temperature; vegetation index; weather; Microwave radiometry; Ocean temperature; Soil moisture; Spaceborne radar; Spatial resolution; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4799-1114-1
DOI :
10.1109/IGARSS.2013.6721260
