Detection of Temporary Snow-Water Depth Change In High Areas Affected By Earthquake By RADAR Interferometric Method: Case of Nurdağı-Bahce Districts (Turkiye)


Yeler O.

4th International Black Sea Modern Scientific Research Congress, Rize, Turkey, 6 - 07 June 2023, pp.1

  • Publication Type: Conference Paper / Summary Text
  • City: Rize
  • Country: Turkey
  • Page Numbers: pp.1
  • Van Yüzüncü Yıl University Affiliated: Yes

Abstract

RADAR systems and data sets in Remote Sensing (RS) and Geographic Information Systems (GIS) technologies have been used quite frequently in recent years, with their ability to obtain reliable and continuous images for different analyzes and change detection. It is preferred especially because it can reveal sensitive measurements in studies such as land change, landslide, erosion, earthquake, crop productivity, snow depth detection in winter recreation areas. While detecting all these changes, different band properties and resolution values of RADAR images are used.

Within the scope of the study, snow-water depth in the areas affected by the 7.8 magnitude earthquake that took place on 06.02.2023 on the line of Nurdağı district of Gaziantep and Bahçe district of Osmaniye between 29.01.2023 and 10.02.2023, between the altitudes of 1000-1793 meters. change in remote sensing was investigated by using interferometry method with the support of RADAR images. While applying this method, SAR based, C band supported, Sentinel 1A RADAR image sets were used. Under normal conditions, the changes in that region were compared with the changes in the previous year and the effect of the earthquake was examined. It has been determined that there is a 20 cm change between the relevant dates as one moves from the higher areas to the lower areas. Differences were found when compared with previous years. Consistency values between 0.5 and 1 and acceptable result values set an example for studies to be carried out in larger areas. It has been revealed that natural disasters are an important factor in land use planning and other investment and planning studies to be made and that they should play an active role in planning.