Scholarly record
STUDY ON THE GEODYNAMIC PROCESSES FOR THE AREA OF THE SOUTHWEST BULGARIA USING INSAR DATA
Abstract
Geodynamic processes and seismic activity are considered to be the prime driver of horizontal and vertical movements of the Earth's crust in the Balkan Peninsula. One proven method for continuous monitoring of ground deformations is the use of data from active radar remote sensing. These data are the basis for the creation of interferometric images (IFIs) for quantitatively assessment the recorded ground movements of the Earths? surface within a fixed time interval. For this research a set of IFIs were created for areas surrounding the city of Sofia. The main objective of this research is monitoring of the ongoing geodynamic processes by complementary use of SAR and GNNS data. GNSS data from permanent and local geodetic networks are used for validation of the SAR derived information concerning the study area. The study will give reliable data for ongoing risky geo-processes for the region of the Southwest Bulgaria. Landslides are one of the main geological hazards that can cause critical damage to the infrastructure in an area and can result in serious risks to the people?s safety there. Maps of active, stabilized and potential landslides in Southwest Bulgaria provided by the national landslide register part of the GIS maintained by Ministry of Regional Development and Public Works (MRDPW) are used. For mapping the deformations in the studied region interferometric images were produced at 4 months intervals. The results obtained from this study are used for the further development of the methodology for monitoring the risk of geo-processes by combining data from different sources.
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References5
Larsen Y. et al., European Ground Motion Service: Service Implementation Plan and Product Specification Document, Report to CLMS, ver. 1.01 (Jan 2020
http://gis.mrrb.government.bg/ (accessed March 2020)
Georgiev, I., G. Mihailov, P. Danchev, N. Dimitrov, M. Minchev, P. Gabenski (2020). National GPS network: Processing and analyzing the measurements of the points of the main order, Geodesy 23, ISSN 0324-1114, ISBN 978-954-9649-13-0
Luis Veci, TOPS Interferometry Tutorial, http://sentinel1.s3.amazonaws.com/docs/S1TBX%20TOPSAR%20Interferometry%20with%20Sentinel-1%20 Tutorial.pdf, 2016
Наков Р. Иванов П, Етап I от ИЗРАБОТВАНЕ НА АНАЛИЗ, ОЦЕНКА И КАРТОГРАФИРАНЕ НА ГЕОЛОЖКИЯ РИСК: Анализ и оценка на геоложкия риск, Министерство на регионалното развитие и благоустройството, 2016
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