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

fYear

2013

fDate

21-26 July 2013

Firstpage

727

Lastpage

730

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6721260

Filename

6721260