DocumentCode :
484248
Title :
Surface Heterogeneity Issues in Remote Sensing of Soil Moisture
Author :
Crosson, William L. ; Limaye, Ashutosh S. ; Laymon, Charles A.
Author_Institution :
Universities Space Res. Assoc., Huntsville, AL
Volume :
3
fYear :
2008
fDate :
7-11 July 2008
Abstract :
In advance of two upcoming soil moisture satellite missions, it is important to improve our understanding of the error sources associated with satellite-based soil moisture retrievals. Uncertainties in remotely-sensed soil moisture estimates can be attributed to many factors, including errors in measured brightness temperatures and input parameters, deficiencies of the radiative transfer scheme and variability of surface conditions within a satellite footprint. The purpose of this study is to quantify the magnitude of scaling errors attributable to heterogeneity within a satellite footprint of soil and vegetation properties and to present a method to reduce these errors. We address this problem using simulated single-frequency, single-polarization passive L-band microwave observations for an agricultural region of the United States.
Keywords :
agriculture; hydrology; moisture; remote sensing; soil; vegetation; United States; agricultural region; brightness temperatures; input parameters; radiative transfer scheme; remote sensing; scaling errors magnitude; simulated single-frequency single-polarization passive L-band microwave observations; soil moisture satellite missions; surface conditions variability; vegetation properties; Brightness temperature; L-band; Land surface; Remote sensing; Rough surfaces; Satellite broadcasting; Soil moisture; Space missions; Surface roughness; Vegetation; Soil moisture; radiobrightness; scaling errors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
Type :
conf
DOI :
10.1109/IGARSS.2008.4779326
Filename :
4779326
Link To Document :
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