International Journal of Waste Resources

Post flood field investigation for loss estimation and recommendation for structure mitigation using quantitative survey techniques in the Gulen gol tehsil, district lower Chitral, Pakistan

World Congress on Sustainable Waste Management

June 21, 2023 | Webinar

Muhammad Shahab

University of Peshawar, Pakistan

Scientific Tracks Abstracts: Int J Waste Resour

Abstract:

Floods are one of the most common and destructive natural disasters, causing significant damage to infrastructure and communities. Accurate and reliable flood mapping is crucial for flood risk management and disaster response. One method for mapping floods is through quantitative survey techniques, which involve measuring and analysing physical characteristics of the flood event. This study presents an overview of quantitative flood survey techniques and their applications in flood mapping and recommendation for construction of mitigation structures in the affected area. The study was carried out in the Gulen Gol, tehsil District Lower Chitral after the huge destructive flood event in August 2022. It includes various types of quantitative survey techniques, including field surveys, Google Earth images, and precipitation history of the area. To understand different parameters that triggered floods in the area and loss estimation a detail field work was carried out in the study area. Field findings reveal that the event was triggered by continuous precipitation of 9 days which is marked as high intensity, also high elevation of 6512 ft and debris played role in destruction. Statistics of the field survey reported huge destruction to infrastructure, 41 houses, 1 masjid, 5 bridges, 4 power houses, 12 electric polls, 11 fish farms, 1 link road, 2 village roads, 12-acre barren and agriculture land, 20 acres of forest, and 12 drinking water supply channels, while no fatalities were reported in the area. The estimated loss is about 200 million in PKR. Furthermore, post flood photographs of the area were compared with Google Earth images to identify highly effected areas. The annual average data of precipitation from 2005 to 2020 were acquired from Pakistan meteorological department (PMD) for understanding the average rain capacity which shows high rain intensity in 2009-10 and lowest average rain intensity in 2018 while the intensity of precipitation was higher in 2019-20. The average precipitation data of the PMD shows a rising trend in the precipitation intensity, which is alarming situation. To avoid any further loss we need check dams, retention pounds, flood walls and proper awareness about the construction of houses.

Biography :

Muhammad Shahab is a geologist and environmental passionate about closing the gap between environmental issues and geological challenges. His main research focus is on the use of GIS and remote sensing technologies in minerals mapping and other geological and environmental domains and machine learning. He has experience in geochemistry, structure geology, and other methods for mineral exploration and geological mapping and have published paper internationally journal and abstracts in international conferences. He received a B.S. (2019) in geology from Abdul Wali Khan University Mardan Pakistan, in the same year joined the National Centre of Excellence in Geology, University of Peshawar for MS studies in environmental geosciences and completed his MS degree in 2022. After completion of his studies, he was selected as a research fellow in project: “GIS and Space Application in Geosciences Lab”. While working him got admission in Ph.D. and started studying in the field of remote sensing artificial intelligence and machine learning.