FLOOD SUSCEPTIBILITY MAPPING BASED ON MULTI-CRITERIA ANALYSIS (AHP) AND GIS: CASE OF CHÓKWE DISTRICT – MOZAMBIQUE

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DOI:

https://doi.org/10.14393/RCG259970390

Keywords:

SIG, Multicriteria methods, Susceptibility map

Abstract

This study aimed to identify flood levels susceptibility in the district of Chokwe (Mozambique) in a context in which it is expected that there will be an increase in extreme events as a result of climate change. Chókwe district is located on a floodplain in the Limpopo River basin. To prepare the mapping, weights were applied according to the Analytical Hierarchy Process (AHP) methodology, proposed by Saaty in the 1970s. The map was carried out by ArgGis 10.4.1. Altitude was the most influential factor. The other factors that most significantly contributed to the formation of susceptibility were: the proximity of drainage channels and the Topographic Wetness Index (TWI).

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Author Biographies

Tomé Francisco Chicombo, Instituto Superior Politécnico de Gaza

Graduado em Informática pela Universidade Eduardo Mondlane (Moçambique). Mestrado em Sistemas de Informação para Gestão Ambiental pela Universidade Pedagógica (Moçambique). Doutorado em Geografia-Tratamento de Informação Espacial (Brasil).

Alecir Antônio Maciel Moreira, Pontifícia Universidade Católica de Minas Gerais

Graduado em Geografia pela Universidade Federal de Minas Gerais (Brasil). Mestrado em Geografia pela Universidade Federal de Minas Gerais (Brasil). Doutorado em Geografia - Tratamento da Informação Espacial pela Pontifícia Universidade Católica de Minas Gerais (Brasil).

Published

2024-06-04

How to Cite

CHICOMBO, T. F.; MOREIRA, A. A. M. FLOOD SUSCEPTIBILITY MAPPING BASED ON MULTI-CRITERIA ANALYSIS (AHP) AND GIS: CASE OF CHÓKWE DISTRICT – MOZAMBIQUE. Caminhos de Geografia, Uberlândia, v. 25, n. 99, p. 301–319, 2024. DOI: 10.14393/RCG259970390. Disponível em: https://seer.ufu.br/index.php/caminhosdegeografia/article/view/70390. Acesso em: 22 jul. 2024.

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