The present work aimed at building the hydrological model for the Paraíba do Sul River watershed, using the MOHID Land model, in order to study channel flows considering six different precipitation inputs. First, two scenarios were created with temporal variation of rain from the precipitation measured by 17 automatic stations of the Brazilian National Institute of Meteorology (INMET) located in the watershed, and interpolated with the FillMatrix tool, by the Inverse Distance Weighting (TIN) and Triangulated Irregular Networks (IDW) methods. The other four scenarios were created from four experiments simulated in the atmospheric model WRF-ARW, corresponding to the spatial and temporal variation of precipitation. The hydrological model considered the Manning coefficients, Curve Numbers and cross sections extracted from the database of the Brazilian National Water Agency (ANA) together with the operation curve of the reservoirs extracted from the situation room on the Geographical and Geoenvironmental Information System of the Paraíba do Sul River Watershed (SIGA-CEIVAP) website. The analysis period corresponds to the month of January 2019 (01/01/2019 00 UTC and 01/02/2019 00 UTC), with hourly evaluation. The measured channel flow data used were extracted from the ANA fluviometric station, in the Campos dos Goytacazes city, State of Rio de Janeiro, and they were used for the statistical indices calculation, BIAS, MAE, MAPE, RMSE and Pearson's Correlation (R), in order to evaluate the model. The results showed that once the physical parameterization of better performance in the atmospheric model (WRF – Weather Research and Forecasting) was established, the use of the modeled rain yields a superior performance in comparison to the interpolated (observed) rain for implementation in the hydrological model (MOHID – MODagem HIDrodinâmica), with the aim to study the channel flows.


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Author Biographies

Dhiego Sales, Instituto Federal Fluminense

Degree in Geography from Instituto Federal Fluminense (2010), postgraduate degree in Geography and Environment from FACCREI (2015) and postgraduate degree in Engenharia de Petróleo e Gás from UCP (2016), mastership in Environmental Engineering from Instituto Federal Fluminense (2019). Experience in geosciences for the petroleum industry, with knowledge in meteoceanographic sensors for navigation and environmental data collection, hydroacoustic positioning system, georeferencing software for navigation, launching / mapping of equipment and submarine structures, determination of coordinates and management system environmental (EMS).

Jader Lugon Junior, Instituto Federal Fluminense

Jader Lugon Junior fez estágio de pós-doutorado (2018) em Modelagem Computacional no Instituto Politécnico da Universidade do Estado do Rio de Janeiro, onde também concluiu o doutorado (2005) e mestrado (2000). Ele completou sua especialização em Engenharia de Segurança do Trabalho (2010) e a sua graduação como Engenheiro Mecânico (1985) pela Universidade Federal Fluminense. É Bolsista de Produtividade DT nível 2 pelo CNPq em Desenvolvimento Tecnológico e Extensão Inovadora. Atua no Instituto Federal Fluminense (IFFluminense) como Coordenador do Doutorado Profissional em Modelagem e Tecnologia para Meio Ambiente Aplicadas em Recursos Hídricos, como Professor no curso de Mestrado Profissional em Engenharia Ambiental e no curso de graduação de Engenharia de Controle e Automação. Participa do grupo de pesquisa NUPERN - Núcleo de Pesquisa em Petróleo, Energia e Recursos Naturais (IFFluminense) e colabora com pesquisadores do LEMA - Laboratório Patricia Oliva Soares de Experimentação e Simulação Numérica em Transferência de Calor e Massa (IPRJ UERJ). Atua na área de Engenharia Mecânica com enfase em Fenômenos de Transporte.

Vicente de Paulo Santos de Oliveira, Instituto Federal Fluminense

Professor at Federal Fluminense Institute and PhD in Agricultural Engineering at the Federal University of Viçosa (2003) in Water and Environmental Resources. He managed positions at Federal Fluminense Institute since 2007, where he was Director of the Research Extension Agro-Environmental Unit in periods from Jan/2007 to Mar/2008 and from Apr/2012 to Apr/2016 and he coordinated the Unit accreditation with EMBRAPII, which was approved in March 2015, when it became Campos dos Goytacazes Innovation Pole of Federal Fluminense Institute by MEC Ordinance No. 819 of 8/13/2015. He acted as Research, Extension and Innovation Pro-Rector at Federal Fluminense Institute from April/2016 to June/2020. He is Coordinator of the Research Management Water Resources Center, Adviser and Administrative Director of Baixo Paraíba do Sul and Itabapoana River Basin Committee, of the Advisory Councils of Guaxindiba State Ecological Station and of Private Reserve of Caruara Farm Natural Patrimony. Experiences in Agricultural Engineering area with emphasis on Soil and Water Conservation, acting mainly on the following themes: water resources, water and soil conservation, environment and environmental education. Professor at Environmental Engineering Undergraduate Program, at Professional Master in Intellectual Property and Technology Transfer for Innovation and at Professional PhD in Modeling and Technology for the Environment Applied in Water Resources.

Antônio José da Silva Neto, Universidade do Estado do Rio de Janeiro

Mechanical/Nuclear Engineer (Universidade Federal do Rio de Janeiro - UFRJ, 1983), M.Sc. in Nuclear Engineering (COPPE/UFRJ, 1989) and Ph.D. in Mechanical Engineering (North Carolina State University, 1993). Has experience in Mechanical Engineering, focusing on Heat Transfer, acting on the following subjects: inverse problems, radiative transfer, heat conduction, numerical methods.