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United States Department of Agriculture

Agricultural Research Service

Title: Soil Moisture Mapping with Passive Microwave Imagery Data and Geostatistical Analysis

Authors
item Oldak, Anna - WARSAW UNIV, POLAND
item Jackson, Thomas
item Pachepsky, Yakov

Submitted to: Remote Sensing in Hydrology Symposium
Publication Type: Proceedings
Publication Acceptance Date: July 10, 2001
Publication Date: N/A

Technical Abstract: Remote sensing, in particular passive microwave, has a great potential for providing areal estimates of soil moisture. It can be implemented with aircraft based sensors as described in this study. The result of the measurements, the brightness temperature images, can be converted into volumetric soil moisture maps using additional environmental variables. These maps display information on soil moisture distribution over space an time. Semivariogram analysis was performed to investigate spatial variation of soil moisture and its scale dependence with the environmental features. Analysis revealed a dependency of the soil moisture distribution at two scales. On the regional scale rainfall is the dominant factor influencing soil moisture distribution. At the local scale soil texture dominates.

Last Modified: 4/16/2014