On the Validation of Satellite Microwave Remote Sensing Data under Soil Salinity Conditions
- Authors: Romanov A.N.1, Khvostov I.V.1
-
Affiliations:
- Institute for Water and Environmental Problems, Siberian Branch, Russian Academy of Sciences
- Issue: Vol 55, No 9 (2019)
- Pages: 1033-1040
- Section: Methods and Tools for Space Data Processing and Interpretation
- URL: https://journals.rcsi.science/0001-4338/article/view/148791
- DOI: https://doi.org/10.1134/S0001433819090445
- ID: 148791
Cite item
Abstract
The results of a comparative analysis of the underlying surface brightness temperature obtained from the SMOS satellite and calculated with the use of ground-based measurements of moisture and the laboratory measurements of dielectric characteristics of samples of saline soils and saline water from test sites of the Kulunda Steppe are presented. The values of the underlying surface brightness temperatures calculated with the use of ground investigations and the laboratory studies correlate satisfactorily with the values of brightness temperatures measured from the SMOS satellite. The deviations can be caused by the seasonal drying of highly mineralized shallow lakes, which results in a significant change in the areas occupied by lakes and the appearance (instead of a water surface) of wetlands with a high content of mineral salts, whose radio emission characteristics differ from the characteristics of the water surface and the soil cover.
Keywords
About the authors
A. N. Romanov
Institute for Water and Environmental Problems, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: ran@iwep.ru
Russian Federation, Barnaul
I. V. Khvostov
Institute for Water and Environmental Problems, Siberian Branch, Russian Academy of Sciences
Email: ran@iwep.ru
Russian Federation, Barnaul