Landsat-7 in evaluation of oilfield exploitation impacts on the south Evenkiya larch dominant communities

Viacheslav I. Kharuk; Kenneth Jon Ranson; Sergey T. Im

doi:10.1117/12.466865

16 June 2003 Landsat-7 in evaluation of oilfield exploitation impactson the south Evenkiya larch dominant communities

Viacheslav I. Kharuk, Kenneth Jon Ranson, Sergey T. Im

Proceedings Volume 4897, Multispectral and Hyperspectral Remote Sensing Instruments and Applications; (2003) https://doi.org/10.1117/12.466865
Event: Third International Asia-Pacific Environmental Remote Sensing Remote Sensing of the Atmosphere, Ocean, Environment, and Space, 2002, Hangzhou, China

Abstract

This paper study considers the effects of oil exploration and development in the oilfields of Evenkiya, Central Siberia (60°30^’N/96°30^’E). 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.

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Viacheslav I. Kharuk, Kenneth Jon Ranson, and Sergey T. Im "Landsat-7 in evaluation of oilfield exploitation impactson the south Evenkiya larch dominant communities", Proc. SPIE 4897, Multispectral and Hyperspectral Remote Sensing Instruments and Applications, (16 June 2003); https://doi.org/10.1117/12.466865

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KEYWORDS

Earth observing sensors

Landsat

Reconnaissance

Composites

Vegetation

Roads

Satellites

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