Sajjad et al.: The riverine flood catastrophe in August 2010 in South Punjab, Pakistan: potential causes, extent and damage assessment - 14121 - THE RIVERINE FLOOD CATASTROPHE IN AUGUST 2010 IN SOUTH PUNJAB, PAKISTAN: POTENTIAL CAUSES, EXTENT AND DAMAGE ASSESSMENT SAJJAD, A.1 – LU, J. Z.1* – CHEN, X. L.1 – CHISENGA, C.1 – MAHMOOD, S.2 1State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China 2Department of Geography, Government College University, Lahore, Pakistan *Corresponding author email:
[email protected]; phone: +86-27-6877-8755 (Received 29th May 2019; accepted 16th Oct 2019) Abstract. The paper investigates the causes, magnitude and damage caused by the flood as a result of the breaching of the east marginal embankment of the Taunsa Barrage. The flood frequency in the district of Muzaffar Garh located in south Punjab, Pakistan had serious impacts on human lives and their properties. To pursue this study, we used primary data, collected through questionnaire, formal interviews, field observations and secondary data, obtained through government departments and online open source databases. Furthermore, Landsat ETM+ imageries were used as input in the supervised classification in order to investigate the pre and post flooding land cover and land use. Hydrograph was used to analyze the flood limits and spatiotemporal change in river discharge for barrages. The results show an abnormal rainfall occurring in the month of July in the upper Indus Basin, which resulted in a massive discharge in the central Indus Basin. As a consequence, it exceeded the flood limits at the Taunsa Barrage, which resulted in the breaching of east marginal embankment.