Investigating the Subsidence of Zanjan Plain and its Relationship with the Drop in the Level of Groundwater Levels using Radar Images of Envisat Satellite between 2003 and 2010

Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
In this paper, the applicability of the Persistent Scatterer (PS) time series analysis method is investigated in determining the rate and pattern of the area affected by subsidence in Zanjan plain in the period 2003 to 2010. The radar data used consists of two ENVISAT ASAR data sets related to the17 number of 464 descending track and 9 number of 228 ascending track, on which after processing data with Stamps Program, PS method was performed on them. After eliminating the error sources, based on the results of the time series obtained, continuous and significant subsidence were observed in this region. PS time series for track 228 specify maximum subsidence range of about 40mm/y between 2004-2010 and track 464 specify maximum subsidence range of about 35mm/y between 2003-2005. The analysis of the results with the water level information of the region over a similar time period shows a strong dependence between groundwater depletion and subsidence.
Language:
Persian
Published:
Hydrophysics Journal, Volume:6 Issue: 1, 2021
Pages:
67 to 82
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