Land degradation monitoring in the Ocnele Mari salt mining area using satellite imagery

Violeta D. Poenaru; Alexandru Badea; Elena Savin; Delia Teleaga; Valentin Poncos

doi:10.1117/12.898022

26 October 2011 Land degradation monitoring in the Ocnele Mari salt mining area using satellite imagery

Violeta D. Poenaru, Alexandru Badea, Elena Savin, Delia Teleaga, Valentin Poncos

Proceedings Volume 8181, Earth Resources and Environmental Remote Sensing/GIS Applications II; 81810U (2011) https://doi.org/10.1117/12.898022
Event: SPIE Remote Sensing, 2011, Prague, Czech Republic

Abstract

Mining is an important activity contributing to the economic development with long lasting environmental impacts. A major disaster took place in 2001 in Ocnele Mari salt mining area located in the central-south part of Romania when the artificial lake brine was poured in rural areas, devastating homes and polluting the Olt River. Towards a sustainable and harmonious development of the Ocnele Mari area, the Romanian Authorities decided to ecology and rehabilitate it. This ongoing project is focused on land degradation monitoring from 2001 disasters until now. High Resolution Spotlight TerraSar-X synthetic aperture radar data acquired within TerraSAR-X proposal LAN0778 are used to analyze terrain deformation by interferometric techniques knowing the mine subsidence is not constant; periods of relative stability are followed by quick deformation. The rocks forming in the region situated above the salt cushion have very low mechanical resistance and high intergranular fissured permeability so the hill's slopes are affected by landslides which are reactivated periodically. Additionally, analysis of the vegetation coverage (leaf area index and normalized difference vegetation index) from the optical data gathered by different sensors such as LANDSAT and MODIS combined with the meteorological data (temperature, wind speed, humidity and solar radiation) provide indicators for the land degradation. The results will be validating on ancillary data. Satellite derived information in conjunction with in-situ measurements can provide valuable information for existing conservation development models for defining the essential elements of a planning process designed to maximize the values provided by salt ponds from Ocnele Mari.

Citation Download Citation

Violeta D. Poenaru, Alexandru Badea, Elena Savin, Delia Teleaga, and Valentin Poncos "Land degradation monitoring in the Ocnele Mari salt mining area using satellite imagery", Proc. SPIE 8181, Earth Resources and Environmental Remote Sensing/GIS Applications II, 81810U (26 October 2011); https://doi.org/10.1117/12.898022

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KEYWORDS

Vegetation

Mining

Interferometry

Synthetic aperture radar

Earth observing sensors

Reflectivity

Phase interferometry

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