Mapeamento da inundação de abril de 2010 para análise das áreas de risco na Cidade de Santo Amaro, Bahia

Cartografia e Sensoriamento Remoto – Fundamentos e Uso – Volume 1 Pub Date : 1900-01-01 DOI:10.36229/978-85-7042-198-2.cap.16

L. F. Borges, A. Fontes, Dária Maria Cardoso Nascimento

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Abstract

The city of Santo Amaro Bahia is located on the Subaé river banks and subject to its hydrological variability. Thus, the present work has the objective of mapping the Subaé river flood occurred on April 14, 2010 as a strategy to define its spot and delineate areas with greater risk of losses to the population. Through the hydrodynamic mathematical modeling associated to a Geographic Information System (GIS) program, it was possible to delimit the floodplain. With this delimitation and according to database from the Statistical Grid of the Brazilian Institute of Geography and Statistics (IBGE) of the 2010 demographic census, the result of the mapping allowed to quantify the floodplain in 85.2 hectares, containing 12.382 inhabitants and 2.747 households in a risk situation. In the fieldwork, it was identified that the higher risk areas to flooding are populous neighborhoods like Ideal, Bonfim, Caeira, Trapiche and the center of the City the Municipal Market. Therefore, the use of cartography has become an important tool for spatialization and measurement of the event.

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2010年4月巴伊亚州圣阿马洛市洪水地图，用于分析危险区域

圣阿马罗巴伊亚市位于suba河岸上，受其水文变化的影响。因此，目前的工作目标是绘制2010年4月14日发生的suba河洪水，作为确定其地点和划定人口损失风险较大的地区的策略。通过与地理信息系统(GIS)程序相关联的水动力数学模型，可以划定泛滥平原。根据这一划分，并根据巴西地理与统计研究所(IBGE) 2010年人口普查的统计网格数据库，制图结果可以量化85.2公顷的泛滥平原，其中包括12.382名居民和2.747户处于危险状况。在实地调查中，确定洪水风险较高的地区是人口稠密的社区，如Ideal、Bonfim、Caeira、Trapiche和城市中心的市政市场。因此，使用地图学已成为事件空间化和测量的重要工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Cartografia e Sensoriamento Remoto – Fundamentos e Uso – Volume 1

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