47 documents found, page 1 of 5
Geotecnologias aplicadas ao diagnóstico geoambiental da bacia hidrográfica do r...
Gomes, Daniel Dantas Moreira; Medeiros, Cleyber Nascimento de; Albuquerque, Emanuel Lindemberg Silva; Duarte, Cynthia RomarizThe Jaibaras River Basin, in the State of the Ceara, Brazil, presents an expressive landscape diversity, with a view that is located in a semi-arid region, which contrasts with the mountain landscape of the sub-humid Meruoca and Ibiapaba plateau. The objective of this paper is evaluate, with aid of the techniques of geomatic, the environmental systems in the Jaibaras river Basin, based on the systematization an...
Geomorfología post holocénica y riesgo ambiental: el vertedero de resíduos sóli...
Sabadia, José Antonio Beltrão; Duarte, Cynthia Romariz; Casas, AlbertPost Holocene geomorphology and environmental risk: the solid waste landfill of Jangurussu, Fortaleza, Ceará State, Brazil. In countries like Brazil, social and economic inequality leads to most of the population is more tolerant in front of existing serious environmental problems, and makes much of the public is subject to live near landfills municipal solid waste. Built rapidly in urban modeling, creating a n...
Avaliação de suscetibilidade à movimentos de massa, utilizando as variáveis mor...
Carmo, Alcione Moreira do; Souto, Michael Vandesteen Silva; Duarte, Cynthia Romariz; Lopes, Pamela Sampaio; Sabadia, José Antônio BeltrãoIn recent decades, natural disasters caused by landslides have caused many deaths and economic losses in Brazil and as worldwide. Susceptibility maps to mass movements have been used to indicate areas susceptible to these phenomena in mountainous regions, allowing better planning of the land use. This paper presents susceptibility maps to mass movements, based on morphometric variables natural and environmental...
Análise qualitativa e comparativa das variáveis morfométricas da região serrana...
Carmo, Alcione Moreira do; Souto, Michael Vandesteen Silva; Duarte, Cynthia RomarizWith the advancement of computer technology in recent decades came along the advancement of digital data and the ease of obtaining this information gathering from the World Wide Web. Digital models of ground elevations, for example, which generated data of complex and difficult access some years ago, are now available freely on the internet in different resolutions and accuracies for the entire globe. Many work...
Avaliação da acurácia dos ortomosaicos e modelos digitais do terreno gerados pe...
Silva, Cristiano Alves da; Souto, Michael Vandesteen Silva; Duarte, Cynthia Romariz; Bicho, Cristina Prando; Sabadia, José Antonio BeltrãoThis present paper aims to demonstrate the evaluation of the accuracy of orthomosaics and Digital Terrain Models (DTM) generated by the Unmanned Aerial Vehicle (UAV) developed by the University of Brasilia (UnB) in partnership with the National Department of Mineral Production (DNPM). This study evaluated the orthomosaic and the MDT from a pile of laminated limestone exploitation tailings in the Santana do Cari...
Aplicação de técnicas de sensoriamento remoto na análise multitemporal da linha...
Damasceno, Aline Moreira; Duarte, Cynthia Romariz; Souto, Michael V. S.The study of erosion in Icapui/CE was obtained by temporal analysis in a period of 29 years (1984-2013) using multitemporal data, historical series of remote sensing and DSAS tool, which through statistical methods produced estimates of variation of the line coast, allowing to define it forward and backward through 83 transects. Statistical methods EPR and LRR demonstrated the predominance of accretion processe...
Geomorfología post holocénica y riesgo ambiental: el vertedero de resíduos sóli...
Sabadia, José Antonio Beltrão; Duarte, Cynthia Romariz; Casas, AlbertPost Holocene geomorphology and environmental risk: the solid waste landfill of Jangurussu, Fortaleza, Ceará State, Brazil. In countries like Brazil, social and economic inequality leads to most of the population is more tolerant in front of existing serious environmental problems, and makes much of the public is subject to live near landfills municipal solid waste. Built rapidly in urban modeling, creating a n...
Faciologia e evolução dos depósitos eólicos costeiros do oeste do Ceará (Brasil...
Mesquita, Áquila Ferreira; Silva Filho, Wellington Ferreira da; Duarte, Cynthia Romariz; Bezerra, Francisco Hilário Rego; Vasconcelos, David LinoThis study aimed to characterize the morphology and evolution of coastal deposits in western Ceará state based on the variation of the sea level in the Late Holocene, thus reconstructing the paleogeography of the area. Based on the petrography and facies analysis, fi ve sedimentary facies and their original depositional forms (facies associations) have been identifi ed as follows: coarse-grained sandstone with ...
Comparação de Imagens OLI/Landsat-8 e MSI/Sentinel-2 no mapeamento de cobertura...
Freires, Eduardo Viana; Silva Neto, Cláudio Ângelo da; Cunha, Dominick Sávio Rocha; Duarte, Cynthia Romariz; Veríssimo, César Ulisses VieiraOrbital images of the Landsat series have been systematically employed in the mapping of land cover and use. However, some areas, due to the relief characteristics or the strong antropic influence, impose difficulties in this characterization. The Uruburetama massif, in the state of Ceará, represents an area with such peculiarities. This work compares images of the OLI / Landsat-8 and MSI / Sentinel-2 orbital s...
Modelagem prospectiva mineral com base em Lógica Fuzzy: avaliação do Distrito F...
Uchoa, Elenilton Bezerra; Duarte, Cynthia Romariz; Magini, Christiano; Mirianda, Mateus de PaulaRecently the state of Ceará, Brazil, has been an important iron ore producer and exporter, by Bandarra mine in Quiterianópolis city. In this city there are five known iron occurrences named Calixto, Bandarra, São Francisco, Olho D’água and Pintada. The Bandarra iron ore deposit produced and exported from Brazil to China about 1.2 million tonnes of iron ore with 60% content. These iron ore are located in Norther...