21 documents found, page 1 of 3
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...
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...
Análise comparativa de imagens Sentinel-2A (MSI) e Landsat-8 (OLI) aplicadas ao...
Miranda, Mateus de Paula; Duarte, Cynthia Romariz; Gomes, Daniel Dantas Moreira; Souza, Cassiano Dias de; Silva Neto, Cláudio Ângelo daSatellites equipped with multispectral sensors, such as the Landsat (TM, ETM +, OLI) series, play an important role in geological applications, especially sensors that have spectral bands in short-wave infrared, because it is in this region of the spectrum that mineral groups such as that of the clays, present peaks of reflectance. The satellite of the mission Sentinel-2, from Copernicus program of European Spa...
Análise multitemporal do processo de degradação da vegetação da bacia hidrográf...
Gomes, Daniel Dantas Moreira; Mendes, Lúcia Maria Silveira; Medeiros, Cleyber Nascimento de; Verissimo, Cesar Ulisses VieiraThis study aimed to identify and quantify the levels of degradation of the vegetation in the area of River Basin Jaibaras / CE in the period 24 years, more precisely, in the years 1985, 1992, 1996, 2007 and 2009. Through the use of techniques of digital image processing were produced thematic maps of the levels of degradation cover, being ranked the same: vegetation conserved, partially degraded, degraded, seve...
Análise socioambiental do entorno do Estuário do Rio Cocó - Fortaleza / Ceará
Freires, Eduardo Viana; Gomes, Daniel Dantas Moreira; Duarte, Cynthia Romariz; Sabadia, José Antonio Beltrão; Souto, Michael Vandesteen SilvaThe urban densification, which sued in the surroundings of the estuary of the Rio Cocó, favored by the huge population growth occurred in Fortaleza/CE/Brazil, in recent decades, involved in various negative impacts on site. In order to understand the environmental dynamics around the Poop River estuary, from the urban increment were conducted physical and human data collection in the area of interest through li...
Análise da evolução urbana no entorno do estuário do Rio Cocó – Fortaleza/Ceará...
Freires, Eduardo Viana; Gomes, Daniel Dantas Moreira; Sabadia, José Antonio Beltrão; Duarte, Cynthia Romariz; Souto, Michael Vandesteen SilvaIn order to evaluate the urban evolution that occurred in the vicinity of the estuary of the Rio Coco/Fortaleza/ CE and its negative impacts in the period between 1985, 1996 and 2007, we performed an analysis from multitemporal images of TM/Landsat-5 respective years in a GIS environment. 9 units were defined use and land cover (Urban Area; River; Natural Vegetation; Plain hypersaline; Ponds and wetlands, dunes...
Influência de lineamentos estruturais no desencadeamento dos movimentos de mass...
Freires, Eduardo Viana; Silva Neto, Cláudio Ângelo da; Duarte, Cynthia Romariz; Veríssimo, César Ulisses Vieira; Gomes, Daniel Dantas MoreiraThe geological structures arrangement in plateau areas is an important element in understanding the dynamics that occur on the surface of their slopes and which is responsible for relief sculpting. In this context, gravitational movements stand out, which can generate economic, environmental and human losses in high energy events and / or with large extension. This research analyzed the influence of structural ...
Diagnóstico da degradação ambiental na vertente úmida do Maciço de Uruburetama/...
Freires, Eduardo Viana; Silva Neto, Cláudio Ângelo da; Duarte, Cynthia Romariz; Veríssimo, César Ulisses Vieira; Gomes, Daniel Dantas MoreiraThe various interventions in the Uruburetama Massif have generated a situation of degradation that compromises local economic, social and environmental sustainability. As a way of warning about the worsening of environmental problems, this research aims to make a diagnosis of environmental degradation in the humid hillside of the Uruburetama Massif / CE and its surroundings, in order to assess the impacts gener...
USO DE CENAS DO SATÉLITE LANDSAT 8 PARA MAPEAMENTO DAS UNIDADES FITOGEOGRÁFICAS...
Alexandre, Fernando da Silva; Costa, Samuel Othon de Souza; Barbosa, Lays Cristhine Santos; Holanda, Tiago Fernando de; Gomes, Daniel Dantas MoreiraA vegetação é de suma importância para planejamento ambiental, principalmente em bacias hidrográficas, e um dos meios mais eficazes de realizar o mapeamento fitogeográfico em grandes áreas é com a utilização de cenas de sensoriamento remoto em ambiente SIG. A bacia hidrográfica do Alto Curso ocupa uma área de 895,03 km2 e um perímetro de 205,31 km, abrange 6 municípios do Estado de Pernambuco (Brejão, Correntes...
MAPEAMENTO DA COBERTURA E USO DA TERRA DA BACIA HIDROGRÁFICA DO ALTO CURSO DO R...
Alexandre, Fernando da Silva; Costa, Samuel Othon de Souza; Oliveira, Gabriella Falcão de; Souza, Lyvia Ramos; Silva Neto, José de BarrosO conhecimento acerca da cobertura e uso da terra é discutido entre os geógrafos e o meio cientifico a bastante tempo, já que proporciona uma base para a compreensão de como o homem transforma o meio natural e a da dinâmica de ocupação da terra. Como a cobertura da terra influencia diretamente no regime hidrológico, torna-se necessário compreender essa dinâmica nas bacias hidrográficas ou bacias de drenagem, qu...