59 Estimation of Soil Properties Using Hyperspectral VIS/IR Sensors
Part 5. Remote Sensing
Published Online: 15 APR 2006
Copyright © 2005 John Wiley & Sons, Ltd
Encyclopedia of Hydrological Sciences
How to Cite
Huete, A. R. 2006. Estimation of Soil Properties Using Hyperspectral VIS/IR Sensors. Encyclopedia of Hydrological Sciences. 5:59.
- Published Online: 15 APR 2006
Knowledge of soil properties and processes are crucial to the understanding of the terrestrial hydrologic cycle and the functioning of terrestrial ecosystems. In this paper, we present the current state and potential of hyperspectral remote sensing techniques for quantitative retrieval of soil properties. Remote sensing is used to detect chemical and physical soil properties either (i) directly from the bare soil pixels, (ii) through advanced spectroscopy methods in mixed “soil-vegetation-litter” pixels, and (iii) by measurements of the overlying vegetated canopy to infer soil properties and moisture status. Optical-geometric properties of soil surfaces reveal information on soil physical features, such as soil structure, crusting, and erosion. We also investigate the use of vegetation water indices to infer soil drying and wetting in the soil root zone. We conclude with a discussion on future needs and directions for remote sensing of soil properties.
- soil properties;
- hyperspectral remote sensing;
- vegetation water indices;
- soil moisture;
- soil structure;
- organic matter;