Flood vulnerability and slum concentration mapping in Indian city of Kolkata: A post Amphan analysis

Floods are natural risk with a very high frequency, which causes to environmental, social, economic and human losses. The floods in the town happen mainly due to human made activities about the blockage of natural drainage, haphazard construction of roads, building, and high rainfall intensity. Detailed maps showing flood vulnerability areas are helpful in management of flood hazards. Therefore, present research focused on identifying flood vulnerability zones in the Pune City using multi-criteria decision-making approach in Geographical Information System (GIS) and inputs from remotely sensed imageries. Other input data considered for preparing base maps are census details, City maps, and fieldworks. The Pune City classified in to four flood vulnerability classes essential for flood risk management. About 5 per cent area shows high vulnerability for floods in localities namely Wakdewadi, some part of the Shivajinagar, Sangamwadi, Aundh, and Baner with high risk.

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IDENTIFICATION OF VULNERABLE AREAS TO FLOODS IN KELANTAN RIVER SUB-BASINS BY USING FLOOD VULNERABILITY INDEX

International Journal of Geomate ◽

10.21660/2017.29.11110 ◽

2017 ◽

Cited By ~ 1

Author(s):

Nurul Farahen Ibrahim

Keyword(s):

Vulnerability Index ◽

Flood Vulnerability ◽

Flood Vulnerability Index

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Flood vulnerability impact for food estate potential in Central Kalimantan, Indonesia

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/648/1/012025 ◽

2021 ◽

Vol 648 (1) ◽

pp. 012025

Author(s):

I Muhardiono ◽

A Hamdani

Keyword(s):

Flood Vulnerability ◽

Central Kalimantan

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Flood vulnerability assessment in the Accra Metropolis, southeastern Ghana

Applied Water Science ◽

10.1007/s13201-021-01463-9 ◽

2021 ◽

Vol 11 (7) ◽

Author(s):

Benjamin Wullobayi Dekongmen ◽

Amos Tiereyangn Kabo-bah ◽

Martin Kyereh Domfeh ◽

Emmanuel Daanoba Sunkari ◽

Yihun Taddele Dile ◽

...

Keyword(s):

Drainage Density ◽

Geological Structures ◽

Flood Vulnerability ◽

Rock Types ◽

Digital Elevation ◽

Annual Population ◽

Density Values ◽

High Runoff ◽

Elevation Model ◽

Very High

AbstractFloods in Ghana have become a perennial challenge in the major cities and communities located in low-lying areas. Therefore, cities and communities located in these areas have been classified as potential or natural flood-prone zones. In this study, the Digital Elevation Model (DEM) of the Accra Metropolis was used to assess the drainage density and elevation patterns of the area. The annual population estimation data and flood damages were assessed to understand the damages and population trend. This research focused primarily on the elevation patterns, slope patterns, and drainage density of the Accra Metropolis. Very high drainage density values, which range between 149 and 1117 m/m2, showed very high runoff converging areas. High drainage density was also found to be in the range of 1117–1702 m/m2, which defined the area as a high runoff converging point. The medium and low converging points of runoff were also found to be ranging between 1702–2563 m/m2 and 2563–4070 m/m2, respectively. About 32% of the study area is covered by natural flood-prone zones, whereas flood-prone zones also covered 33% and frequent flood zones represent 25%. Areas in the Accra Metropolis that fall in the Accraian and Togo series rock types experience high floods. However, the lineament networks (geological structures) that dominate the Dahomeyan series imply that the geological structures in the Dahomeyan series also channel the runoffs into the low-lying areas, thereby contributing to the perennial flooding in the Accra Metropolis.

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