Interaction between GIS and hydrologic model: A preliminary approach using ArcHydro Framework Data Model

Abstract

In different regions of Brazil, population growth and economic development can degrade water quality, compromising watershed health and human supply. Because of its ability to combine spatial and temporal data in the same environment and to create water resources management (WRM) models, the Geographical Information System (GIS) is a powerful tool for managing water resources, preventing floods and estimating water supply. This paper discusses the integration between GIS and hydrological models and presents a case study relating to the upper section of the Paraíba do Sul Basin (Sao Paulo State portion), situated in the Southeast of Brazil. The case study presented in this paper has a database suitable for the basin's dimensions, including digitized topographic maps at a 50,000 scale. From an ArcGIS ® /ArcHydro Framework Data Model, a geometric network was created to produce different raster products. This first grid derived from the digital elevation model grid (DEM) is the flow direction map followed by flow accumulation, stream and catchment maps. The next steps in this research are to include the different multipurpose reservoirs situated along the Paraíba do Sul River and to incorporate rainfall time series data in ArcHydro to build a hydrologic data model within a GIS environment in order to produce a comprehensive spatial-temporal model.

Entendendo a Complexidade dos Requisitos Necessários para Subsidiar a Implementação de SIGWEB para Comitês de Bacias Hidrográficas a partir da Avaliação de Sistemas Existentes no Brasil

“…O desenvolvimento de Sistemas de Informações Geográficas (SIG) para o apoio à gestão nos Comitês de Bacia Hidrográficas (CBHs) é fundamental para dar subsídios à tomada de decisões (Brasil & ANA 2016;De Deus et al 2016;Maciel 2018;Simões 2013). De forma geral um SIG possibilita aos usuários identificar, integrar, analisar, apresentar e organizar informações relevantes aumentando a eficiência dos trabalhos aos quais se aplica (Chang 2013;Eldrandaly, Naguib & Hassan 2015;Longley et al 2010).…”

Contemporary Geoinformation Technologies in Postmodern Education of Geographers, Hydrometeorologists, Land Surveyors

“…When linking an image, a Gauss-Krueger projection is chosen, a transverse-cylindrical equiangular cartographic projection that allows large areas of the earth's surface to be depicted without significant distortion. Pulkovo-1942 (SK-42) based on the Krasovskyi ellipsoid can act as a coordinate system (Simões, 2013).…”