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Proceedings Paper

Landsat-7 in evaluation of oilfield exploitation impacts on the south Evenkiya larch dominant communities
Author(s): Viacheslav I. Kharuk; Kenneth Jon Ranson; Sergey T. Im
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Paper Abstract

This paper study considers the effects of oil exploration and development in the oilfields of Evenkiya, Central Siberia (60°30N/96°30E). The drilling in this area was initiated in 1970, and the first oil was extracted in 1977. Image data from the US’ Landsat-7, the Russian “Resours”, and the European ERS-2 remote sensing satellites were analyzed. The information value of the Landsat-7 channels was evaluated. In particular, the fresh oil drilling sites effectively differ from old ones in the third (0.63-0.69 µm) and fourth (0.75-0.90 µm) channels. Recently burned areas are detectable in the middle IR (1.55-1.75, 2.08-2.35 µm). The classification accuracy depends on the number of channels used, but does not improve greatly using more than 4 or 5 channels. Landsat-7 scenes enable the detection of patterns for parallel strips (5-10 m in width) of cut forest, the first sign of the oil reconnaissance. Alongside the direct impacts of oil-exploitation, fire frequency was increased. The “big” fires (area>200 ha) caused ~90% of the total damage, but only accounted for 10% of total firescars. The area of human-caused impact is ~20% of territory, which is ~2.5 higher than average for known oil development areas within the Landsat scene. The ERS-2 scenes were found to be effective for mapping fresh drilling sites only. The comparative analysis of “Resours” KFA-1000 camera scene (June 1984) and Landsat-7 (October 1999) showed that during this period the number of oilrigs increased nearly 5 times. Generally, the Landsat-7 data are effective for early detection of the anthropogenic impact on the Siberian larch-dominated communities.

Paper Details

Date Published: 16 June 2003
PDF: 7 pages
Proc. SPIE 4897, Multispectral and Hyperspectral Remote Sensing Instruments and Applications, (16 June 2003); doi: 10.1117/12.466865
Show Author Affiliations
Viacheslav I. Kharuk, V.N. Sukachev Institute of Forest (Russia)
Kenneth Jon Ranson, NASA Goddard Space Flight Ctr. (United States)
Sergey T. Im, V.N. Sukachev Institute of Forest (Russia)

Published in SPIE Proceedings Vol. 4897:
Multispectral and Hyperspectral Remote Sensing Instruments and Applications
Allen M. Larar; Qingxi Tong; Makoto Suzuki, Editor(s)

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