Imagem da capa

Preliminary comparative assessment of water levels measured in virtual and conventional fluviometric stations: a case study in the Madeira river

Spatial altimetry is a technique that makes it possible to obtain level measurements of oceans, rivers, lakes and reservoirs. Currently, altimetric measurements of inland waters levels have been applied in the leveling of fluviometric stations, estimation of spatial, temporal and water storage varia...

ver descrição completa

Principais autores: Costa, Jaqueline Ananias, de Melo Ribeiro, Celso Bandeira, Ferreira, Jussara dos Santos, Carvalho, Alessandro Salles, Gomes, Maria Helena Rodrigues
Formato: Artigo
Idioma: Português
Publicado em: Universidade Tecnológica Federal do Paraná (UTFPR) 2023
Acesso em linha: http://periodicos.utfpr.edu.br/rbgeo/article/view/14979
Tags: Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
id peri-article-14979
recordtype ojs
spelling peri-article-149792023-12-07T18:28:49Z Preliminary comparative assessment of water levels measured in virtual and conventional fluviometric stations: a case study in the Madeira river Avaliação preliminar comparativa de níveis de água medidos em estações fluviométricas virtuais e convencionais: estudo de caso no rio Madeira Costa, Jaqueline Ananias de Melo Ribeiro, Celso Bandeira Ferreira, Jussara dos Santos Carvalho, Alessandro Salles Gomes, Maria Helena Rodrigues Engenharia sanitária Recursos Hídricos Radares altimétricos; Rio Madeira; Altimetria por Satélite Altimetric radars; Flow estimation; Madeira River; Satellite Altimetry Spatial altimetry is a technique that makes it possible to obtain level measurements of oceans, rivers, lakes and reservoirs. Currently, altimetric measurements of inland waters levels have been applied in the leveling of fluviometric stations, estimation of spatial, temporal and water storage variations in rivers and flood zones. Thus, the objective was to comparatively evaluate the water levels of virtual and conventional stations on the Madeira river. Three pairs of stations were selected containing one real and one virtual each, in a common data period, with altimetric measurements from the HIDROSAT portal (JASON 2 satellite) and data from the fluviometric stations of HIDROWEB (ANA). The statistical relationship between stations was verified through Pearson's correlation coefficients(R) and Determination coefficient(R2) and graphical analysis was used to verify the correspondence of hydrological behavior over time. The results showed that the data acquired by the satellite portrayed the regime of variation of levels of the in situ stations analyzed effectively, in addition to showing a strong correlation, reinforcing the possibility of your using it as a complementary base to the conventional monitoring system. Furthermore, the need to standardize the altimetric reference system for conventional stations was evident. A altimetria espacial é uma técnica que viabiliza a obtenção de medidas de nível de oceanos, rios, lagos e reservatórios. Atualmente, medidas altimétricas de níveis de águas continentais têm sido aplicadas em nivelamento de estações fluviométricas, estimativa de variações espaciais, temporais e de armazenamento de água em rios e zonas de inundação. Assim, objetivou-se avaliar comparativamente os níveis de água de estações virtuais e convencionais no rio Madeira. Foram selecionadas três pares de estações contendo uma real e uma virtual cada, em um período comum de dados, com medidas altimétricas provenientes do portal HIDROSAT(satélite JASON 2) e dados das estações fluviométricas do HIDROWEB(ANA). Verificou-se a relação estatística entre as estações por meio dos coeficientes de correlação de Pearson(R) e coeficiente de Determinação(R2) e utilizou-se de análises gráficas para verificar a correspondência do comportamento hidrológico ao longo do tempo. Os resultados mostraram que os dados adquiridos pelo satélite retrataram, de forma efetiva, o regime de variação de níveis das estações in situ analisadas, além de terem apresentado forte correlação, reforçando a possibilidade de sua utilização como base complementar ao sistema de monitoramento convencional. Ademais, ficou evidente a necessidade de padronização do sistema de referência altimétrico para as estações convencionais. Universidade Tecnológica Federal do Paraná (UTFPR) 2023-02-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf http://periodicos.utfpr.edu.br/rbgeo/article/view/14979 10.3895/rbgeo.v10n4.14979 Revista Brasileira de Geomática; v. 10, n. 4 (2022); 239-259 Revista Brasileira de Geomática; v. 10, n. 4 (2022); 239-259 2317-4285 10.3895/rbgeo.v10n4 por http://periodicos.utfpr.edu.br/rbgeo/article/view/14979/9411 Direitos autorais 2023 CC-BY http://creativecommons.org/licenses/by/4.0
institution Universidade Tecnológica Federal do Paraná
collection PERI
language Português
format Artigo
author Costa, Jaqueline Ananias
de Melo Ribeiro, Celso Bandeira
Ferreira, Jussara dos Santos
Carvalho, Alessandro Salles
Gomes, Maria Helena Rodrigues
spellingShingle Costa, Jaqueline Ananias
de Melo Ribeiro, Celso Bandeira
Ferreira, Jussara dos Santos
Carvalho, Alessandro Salles
Gomes, Maria Helena Rodrigues
Preliminary comparative assessment of water levels measured in virtual and conventional fluviometric stations: a case study in the Madeira river
author_sort Costa, Jaqueline Ananias
title Preliminary comparative assessment of water levels measured in virtual and conventional fluviometric stations: a case study in the Madeira river
title_short Preliminary comparative assessment of water levels measured in virtual and conventional fluviometric stations: a case study in the Madeira river
title_full Preliminary comparative assessment of water levels measured in virtual and conventional fluviometric stations: a case study in the Madeira river
title_fullStr Preliminary comparative assessment of water levels measured in virtual and conventional fluviometric stations: a case study in the Madeira river
title_full_unstemmed Preliminary comparative assessment of water levels measured in virtual and conventional fluviometric stations: a case study in the Madeira river
title_sort preliminary comparative assessment of water levels measured in virtual and conventional fluviometric stations: a case study in the madeira river
description Spatial altimetry is a technique that makes it possible to obtain level measurements of oceans, rivers, lakes and reservoirs. Currently, altimetric measurements of inland waters levels have been applied in the leveling of fluviometric stations, estimation of spatial, temporal and water storage variations in rivers and flood zones. Thus, the objective was to comparatively evaluate the water levels of virtual and conventional stations on the Madeira river. Three pairs of stations were selected containing one real and one virtual each, in a common data period, with altimetric measurements from the HIDROSAT portal (JASON 2 satellite) and data from the fluviometric stations of HIDROWEB (ANA). The statistical relationship between stations was verified through Pearson's correlation coefficients(R) and Determination coefficient(R2) and graphical analysis was used to verify the correspondence of hydrological behavior over time. The results showed that the data acquired by the satellite portrayed the regime of variation of levels of the in situ stations analyzed effectively, in addition to showing a strong correlation, reinforcing the possibility of your using it as a complementary base to the conventional monitoring system. Furthermore, the need to standardize the altimetric reference system for conventional stations was evident.
publisher Universidade Tecnológica Federal do Paraná (UTFPR)
publishDate 2023
url http://periodicos.utfpr.edu.br/rbgeo/article/view/14979
_version_ 1805452642961326080
score 10,814766

Registros relacionados