Flood-Induced Agricultural Damage Assessment: A Case Study of Pakistan

Résumé fourni par la source

Climate variability and extreme weather events, particularly flooding, pose growing threats to agricultural productivity worldwide, including in Pakistan. Traditional crop damage assessments during flood events have relied on field surveys, which are often time-intensive and spatially limited. Recent advancements in remote sensing technologies now allow for rapid and large-scale estimation of flood-induced agricultural damage. This study assesses agricultural damage from two recent extreme flood events in Pakistan, integrating crop condition and flood intensity metrics. We present remote sensing-based case studies that employ an interdisciplinary approach, using Moderate Resolution Imaging Spectroradiometer (MODIS), Sentinel-1, and Sentinel-2 imagery along with crop data. Our results show that flood timing, crop stage, and inundation duration were the most influential factors in determining crop loss. We determined that Northern Sindh province and areas along the Indus River and its tributaries are highly vulnerable to flooding, resulting in extensive damage to infrastructure, crops, and loss of lives during flood events in 2010 and 2022, followed by Punjab, Balochistan, and Khyber Pakhtunkhwa. Remote sensing-derived damage estimates were closely aligned with post-event ground reports, validating the approach.

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