Boletim de Ciências Geodésicas

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ASSESSMENT OF HYDROLOGICAL MASS LOSSES IN THE NORTHEAST ATLANTIC EASTERN HYDROGRAPHIC REGION, BRAZIL

Fábio Vinícius Marley Santos Lima

Rodrigo Mikosz Gonçalves

Henry Diverth Montecino Castro

Raquel Arcoverde Vila Nova

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Abstract: Freshwater monitoring globally is fundamental to support decision-making. However, long-term hydrological data for some regions are lacking due to limited of observational networks. Remote sensing products come to aggregate the in situ observations and overco

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DOI: https://doi.org/10.1590/s1982-21702020000300013

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EVALUATION OF THE GNSS POSITIONING PERFORMANCE UNDER INFLUENCE OF THE IONOSPHERIC SCINTILLATION

Mayara Cobacho Ortega Caldeira

Carlos Rodrigo Tanajura Caldeira

Samara Sunny dos Anjos Cereja

Daniele Barroca Marra Alves

Claudinei Rodrigues de Aguiar Caldeira

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Abstract: The ionosphere may not only degrade the accuracy of the GNSS positioning but also reduce its availability because there is a high dependence between signal losses and ionospheric irregularities. Irregularities in the Earth’s ionosphere may produce rapid fluct

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DOI: https://doi.org/10.1590/s1982-21702020000300014

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A PERCEPTRON-BASED FEATURE SELECTION APPROACH FOR DECISION TREE CLASSIFICATION

Carla Jaqueline Casaroti

Jorge Antonio Silva Centeno

Stephan Fuchs

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Abstract: The use of OBIA for high spatial resolution image classification can be divided in two main steps, the first being segmentation and the second regarding the labeling of the objects in accordance with a particular set of features and a classifier. Decision tre

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DOI: https://doi.org/10.1590/s1982-21702020000300015

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