Integrated Flood Risk Assessment and Management Framework of Hill Torent Floods for the Dera Ghazi Khan, Sulaiman Range in Perspective of The flood Faced During 2022

0581669 - ÚI 2024 PK eng A - Abstrakt
Anjum, N. - Yaseen, M. - Shahid, S. U. - Latif, Yasir - Abbas, S.
Integrated Flood Risk Assessment and Management Framework of Hill Torent Floods for the Dera Ghazi Khan, Sulaiman Range in Perspective of The flood Faced During 2022.
Abstract Book of 4th International Conference on Emerging Trends in Earth & Environmental Sciences (ETEES 2023). Lahore: College of Earth and Environmental Sciences, University of the Punjab, 2023. s. 90-90.
[ETEES 2023: International Conference on Emerging Trends in Earth & Environmental Sciences /4./. 04.12.2023-06.12.2023, Lahore]
Institucionální podpora: RVO:67985807
Klíčová slova: Flood * Hazards * Risk * Sulaiman Range
http://cees.edu.pk/wp-content/uploads/2023/12/ETEES-2023-CONFERENCE-PROGRAM.pdf

This study focused on addressing the critical issue of flood risk assessment and management for hill torrents in the Dera Ghazi Khan division of Pakistan. The region experiences a distinct monsoon season, typically spanning from July to mid-September, which brings heavy rainfall. Unfortunately, in 2022, Dera Ghazi Khan and Rajan Pur faced severe devastation due to flash floods triggered by hill torrents, leading to the disruption of various human activities. To understand the severity of the 2022 flood event, hydrological indices were employed, providing insights into its unprecedented nature, making it the most extreme flood in the past twenty years. In order to estimate the extent of the flood, remote sensing and Geographic Information System (GIS) techniques were utilized. The analysis of Sentinel satellite imagery showed that the flood affected an extensive area of approximately 3204 km² (791,859 acres) across Dera Ghazi Khan and Rajan Pur. The results of this study indicated that the 2022 flood faced in 2022 was extremely severe in the last twenty years. The precipitation in monsoon season (June, July, August and September) had contributed most in the flood faced in 2022, especially the month of august. Sentinel satellite imagery having spatial resolution more than 5 meter was used to estimate the accurate extent of flood. In Dera ghazi khan and Rajan Pur, 296669 Acre and 495190 Acre area was flooded respectively due to flood in 2022. Flood damages assessment was carried out by supervised classification. The flood damage assessment exercise was planned by identifying flood damage extent through pre and post flood satellite images. The remote sensing techniques such as; image processing and image classification were used to map the extent of the flood by analyzing the before and after flood images. Forty-nine people were died in Dera Ghazi khan and thirty-one people were died in Rajan Pur due to flooding in 2022. The numbers of injuries were fifty-three in district Dera Ghazi Khan. Flood has damaged 26539 houses in Dera ghazi khan and it has damaged 28608 houses in Rajan Pur. The result of this study showed that a number of roads, bridges and infrastructure were damaged due to flood faced in 2022.
Trvalý link: https://hdl.handle.net/11104/0349776