HYPERSPECTRAL INDICES FOR DETECTING VEGETATION COVER CHANGES OVER THE OIL FIELD USING SPECTROMETER SURVEY DATA

The changes in values of vegetation indices for the red edge position (REP), the MERIS terrestrial chlorophyll index (TCI) and the modified normalized difference vegetation index (NDVI705) are investigated using the surface cover spectrometric data over the Pryozerne oil field (Crimea) by Field Spec ®3FR spectrometer to reveal the searching signal. NDVI705 index is used to discriminate the points with the vegetation cover. The correlation between NDVI705 and REP are obtained with the r = 0.87 for the points where NDVI705 ≥ 0.169. The points with the vegetation cover over oil field showed the decrease of REP and TCI except for ones near the oil wells where some increase of REP and TCI relative to their mean values outside of the deposit is observed. The correlation between REP and TCI with the r = 0.97 indicates the possibility for TCI together with REP respond to the vegetation cover changes over the hydrocarbon field and serves as one of the oil – gas prospecting indices.