Geographical and ecological land zoning of onshore oil pipeline location by level of hazard to environment from emergency oil spills in Arctic region
A.S. Lokhov, M.G. Gubaidullin, V.B. Korobov, A.G. Tutygin
Section: Monitoring of natural and anthropogenically disturbed areas
The level of environmental impact from emergency oil spills in the Arctic region is wide variety even for small areas due to considerable heterogeneity of factors affecting the fate of spilled oil. Authors suggest a point rating classification model for assessment the hazard level of oil spills by means of the sum of products of the factor indicators and their weight coefficients. This paper investigates next factors: oil spreading assessment; number of water bodies that can be polluted; surface slope. Calculations performed for “Yuzhnoye Khylchuyu – Varandey” pipeline in the Nenets Autonomous Okrug, Russian Federation. Oil spreading assessment is calculated with hydrodynamic model considering type of soil (in this case – various types of peat), soil permeability, soil humidity, oil viscosity, evaporation of oil and others. Number of water bodies is calculated by means of Earth satellite images, surface slope – by means of topographic map. The number of water bodies on this pipeline was 59, including 39 lakes and 20 rivers. Average surface slope for pipeline was low (1%), this is not so significant for hazard level assessment. Authors determined that level of potential risk to the environment is significantly different depending on factor influence. Paper suggests five-step verbal-numeric rating scale for assessment the hazard level and pipeline zoning was carried out on this basis.
Keywords: oil pipeline, onshore oil spills, zoning, Arctic region
Article published in number 4 for 2020 DOI: 10.25750/1995-4301-2020-4-043-048