The use of results of ground-based test site spectrometric measurements for the calibration of satellite observations to estimate hydrological and hydrogeological security

Heading: 
Study of the Earth from Space
1Kostyuchenko, Yu.V, 2Solovyov, DM, 3Yushchenko, MV, 4Dugin, SS, 4Kopachevsky, IM, 4Bilous, Yu.H, 4Artemenko, IG
1State institution «Scientific Centre for Aerospace Research of the Earth of the Institute of Geological Sciences of the National Academy of Sciences of Ukraine», Kyiv, Ukraine
2State institution «Scientific Centre for Aerospace Research of the Earth Institute of Geological Science National Academy of Sciences of Ukraine», Kyiv; Marine Hydrophysical Institute Ukrainian National Academy of Sciences, Sevastopol
3State institution «Scientific Centre for Aerospace Research of the Earth of the Institute of Geological Sciences of the National Academy of Sciences of Ukraine», Kyiv, Ukraine
4State institution «Scientific Centre for Aerospace Research of the Earth of the Institute of Geological Science of the National Academy of Sciences of Ukraine», Kyiv, Ukraine
Kosm. nauka tehnol. 2012, 18 ;(6):14–21
https://doi.org/10.15407/knit2012.06.014
Publication Language: Ukrainian
Abstract: 
We propose some theoretical and methodological principles for intercalibration of satellite data and in-field spectrometric measurements in the framework of water balance and hydrological and hydro-geological security assessment. On the basis of the analysis of ground test sites spectrometric data of FieldSpec ® 3 FR, the statistical regularities of spatial-temporal distribution of spectral reflectance characteristics are determined for the spectral indices used in this study. An algorithm is proposed to calculate spectral indices using the correlation analysis. The general form of calibration patterns for further verification of satellite observations is given
Keywords: calibration of satellite data, spectral indices, water balance
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