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For the good management of the electrical potential of a hydroelectric plant it is necessary to know the Cota x Area x Volume (CAV) curve of the reservoir. Therefore, the National Water Agency (ANA) requests that these curves be updated for the purpose of evaluating the silting process, since the inspection agencies and public companies rely on it in their decision-making. This study aims to analyze among the cartographic processes applied in the reservoir update, specifically the stage of execution of the service requested by ANA, which is the Elaboration of the Local Geoidal Model (MGL). We will analyze the undulations of different models (MAPGEO2010, MAPGEO2015, EGM2008 e EIGEN-6c4) in relation to the undulations obtained by the Geodetic Vertices Network (RVG). This analysis will seek adequacy beyond the norms and limits recommended by the ANA, allowing a reduction in the work of data collection in the field. Otherwise, the recommendation of the standard that is the making of the MGL with points level and tracked by GNSS will be followed up, observing a minimum amount for the verification.

rbc. revista brasileira de cartografia/revista brasileira de cartografia

Estudos Comparativos de Modelos Geoidais em Atendimento às Orientações da Agência Nacional de Águas para a Revisão das Curvas Cota x Área x Volume do Reservatório da UHE Serra da Mesa