Height Above the Nearest Drainage to Predict Flooding Areas in São Luiz do Paraitinga, São Paulo

Autor: Humberto Gallo Junior, Helena Saraiva Koenow Pinheiro, Ewerton Danilo Souza Santos
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Floresta e Ambiente, Vol 28, Iss 2 (2021)
Floresta e Ambiente, Volume: 28, Issue: 2, Article number: e20200070, Published: 20 JAN 2021
Floresta e Ambiente v.28 n.2 2021
Floresta e Ambiente
Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
ISSN: 2179-8087
Popis: Natural events associated to environmental disasters has increased with climate changes. Understanding the watershed behavior allows the managers to execute an efficient land use planning. By using as a study area the municipality of São Luiz do Paraitinga, the study’s goal was apply the Height Above the Nearest Drainage Model, which allows categorizing areas based on simulations of water level variations, to evaluate flooding risks at the municipality. The data were processed using ArcGIS Desktop v. 10.3, System for Automated Geoscientific Analysis and TerraHidro. The flood susceptibility map was generated with spatial resolution of 30 m. It was simulated water level variations of 7, 9, 12 and 15 meters and, according to the model, areas with high or very high flood susceptibility cover approximately 13% of the study area (81 km2). In general, the methods used afforded coherent results given the resolution of source data and available information.
Databáze: OpenAIRE