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Full-Text Articles in Physical Sciences and Mathematics
Long-Term Spatiotemporal Evolution Of Land Subsidence In Konya Metropolitan Area (Turkey) Based On Multisensor Sar Data, Nurdan Şi̇reci̇, Gökhan Aslan, Zi̇yadi̇n Çakir
Long-Term Spatiotemporal Evolution Of Land Subsidence In Konya Metropolitan Area (Turkey) Based On Multisensor Sar Data, Nurdan Şi̇reci̇, Gökhan Aslan, Zi̇yadi̇n Çakir
Turkish Journal of Earth Sciences
We have studied the spatiotemporal evolution of surface deformation in Konya city and its vicinity using advanced multitemporal synthetic aperture radar techniques with SAR data acquired by Envisat, ALOS-1, and Sentinel-1 A/B satellites between 2004 and 2020. Velocity maps and time series show that the city has been subsiding with varying rates in space and time since 2004. The pattern of deformation shows two main lobes of subsidence centered in the western and eastern sides of the city with a nondeforming north-south trending narrow zone in between. Subsidence rate increases from a few cm/yr to 11 cm/yr between 2014 and …
Investigation Of Fault-Related Small-Scale Fluid Flow In Geothermal Fields By Numerical Modeling, Doğa Doğan
Investigation Of Fault-Related Small-Scale Fluid Flow In Geothermal Fields By Numerical Modeling, Doğa Doğan
Turkish Journal of Earth Sciences
In this paper, hydrothermal circulations and temperature distributions in geothermal areas with fault zones are investigated. It is shown that existence of the fault zones influences both the fluid circulation patterns and velocities. Reciprocal influence of the local fluid circulations and the temperature distribution is demonstrated. A 2-dimensional square porous layer is used for modeling the geothermal field. Faults are modeled as vertical porous layers. It is assumed that faults are located inside the geothermal field and have a higher permeability than the field itself. Anisotropic and isotropic models are used to simulate the permeability structure of the faults. Several …