Boletim de Ciências Geodésicas

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USE OF GEOSTATISTICS ON ABSOLUTE POSITIONAL ACCURACY ASSESMENT OF GEOSPATIAL DATA

Alex da Silva Santos

Nilcilene das Graças Medeiros

Gérson Rodrigues dos Santos

Jugurta Lisboa Filho

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Abstract: In the area of Geosciences it is intuitive to think of spatial correlation as a phenomenon under study, and Geostatistics has tools to identify and represent the behavior of such dependency. The spatial analysis of the results of an inspectio

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DOI: https://doi.org/

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ANÁLISE DOS MÉTODOS DE POSICIONAMENTO E DOS PARÂMETROS DEFINIDORES DA QUALIDADE DE UM LEVANTAMENTO BATIMÉTRICO

Laís Thie Hasuda Nakao

Cláudia Pereira Krueger

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Resumo: O método de posicionamento a s er empregado em um levantamento batimétrico algumas vezes é questionado, quanto a sua precisão horizontal e vertical. De forma geral, tem sido utilizado nesses levantamentos o posicionamento da embarcação por meio do GPS Difer

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DOI: https://doi.org/

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THE VALIDATION OF THE TRANSFORMATION BETWEEN AN OLD GEODETIC REFERENCE FRAME AND A MODERN REFERENCE FRAME, BY USING EXTERNAL SPACE TECHNIQUES SITES: THE CASE STUDY OF THE HELLENIC GEODETIC REFERENCE SYSTEM OF 1987

Ioannis D. Doukas

Dimitrios Ampatzidis

Vassileios Kampouris

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Abstract: Many of th e old geodetic reference frames which realized in the previous decades using classical observations carry biases. These biases are mainly caused due to the problematic observations and/ or the tectonic motion. That is the case of the

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DOI: https://doi.org/

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A COMPUTATIONAL TOOL TO EVALUATE THE SAMPLE SIZE IN MAP POSITIONAL ACCURACY

Marcelo Antonio Nero

Jorge Pimentel Cintra

Gilberlan de Freitas Ferreira

Túllio Áullus Jó Pereira

Thaísa Santos Faria

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Abstract: In many countries, the positional accuracy control by points in Cartography or Spatial data corresponds to the comparison between sets of coordinates of well - defined points in relation to the same set of p oints from a more accurate s

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DOI: https://doi.org/

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PROPOSAL OF THE SPATIAL DEPENDENCE EVALUATION FROM THE POWER SEMIVARIOGRAM MODEL

Ismael Canabarro Barbosa

Edemar Appel Neto

Enio Júnior Seidel

Marcelo Silva de Oliveira

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Abstract: In G e ostatistics, the use of measurement to describ e the spatial dependence of the attribute is of great importan ce , but only some models (which have second - order stationarity) ar e considered with such measurement . Thus, this paper aims

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DETERMINATION OF GEO-INFORMATION CHARACTERISTICS IN THE USER INTERACTION WITH A SYSTEM FOR BETTERMENT TAX CALCULATION

Gustavo Dias Ramos

Claudia Robbi Sluter

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Abstract: In this paper, we present some results of research work that seeks to determine how the characteristics of geoinformation should be considered and included in the design of users' interfaces for a geoinformation system. T

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IN BATHYMETRIC SURFACES: IDW OR KRIGING?

Italo Oliveira Ferreira

Dalto Domingos Rodrigues

Gérson Rodrigues dos Santos

Lidiane Maria Ferraz Rosa

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Abstract: The representation of the submerged relief is very importanc e in diverse areas of knowledge such as Projects to build or reassess port dimensions, installation of moles, ducts, marinas, bridges, tunnels, mineral prospecting, waterways, dredgin

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DOI: https://doi.org/

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USE OF UAV PLATFORM AS AN AUTONOMOUS TOOL FOR ESTIMATING EXPANSION ON INVADED AGRICULTURAL LAND

Niarkios Luiz Santos de Salles Graça

Edson A. Mitishita

José E. Gonçalves

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Abstract: For a long time, in many countries, questions involving disputes about land ownership has generated demand for geoinformation and documentation. In most cases, access for researchers is restricted or humanely impossible by eminence of con

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DEVELOPMENT OF A LOCAL GEOID MODEL AT THE FEDERAL DISTRICT, BRAZIL, PATCH BY THE REMOVE-COMPUTE -RESTORE TECHNIQUE, FOLLOWING HELMERT'S CONDENSATION METHOD

Giuliano Sant’Anna Marotta

Roberta Mary Vidotti

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Abstract: There are several t echniques for determining geoid heights using ground gravity data, the geopotential models, the astro - geodetic components or a combina tion of them. Among the techniques used, the Remove - Compute - Restore (RCR)

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