40 documents found, page 1 of 4
Compartimentação morfológica de uma planície costeira dominada por mesomaré em ...
Aguiar, Ponciana Freire de; El-Robrini, Maâmar; Freire, George Satander Sá; Guerreiro, Juliana de SáThe Almofala Coastal Plain include the Almofala, Barreira and Torrões Beachs, influenced by high temperatures (>25ºC) and average rainfall of 1172.21mm, winds of 5.5m/s, mesotidal regime. The analysis of the morphological subdivision of the Coastal Plain of Almofala was performed, based on remote sensing data, topography and sedimentology analysis. The methodology consisted of: (a) collection of points X, Y and...
Análise multitemporal da linha de costa da praia de Torrões (Itarema, Ceará, Br...
Aguiar, Ponciana Freire de; El-Robrini, Maâmar; Freire, George Satander Sá; Carvalho, Rodrigo Guimarães deThe changes in coastal line to Torrões Beach (Itarema, Ceará, Brazil) were analised along by 46 years period (1958-2004). Were observed major intensity of the erosion process in coastal line of area. The methodology consisted: collection multi-temporal airborne photography’s (1:32.500 and 1:25.000 scales) and spectral and spatial resolution to Quickbird satellite images ortho-retificatied (2004); the airborne p...
Mudanças morfológicas na linha de costa das praias de Almofala e da Barreira em...
Aguiar, Ponciana Freire de; El-Robrini, Maâmar; Freire, George Satander Sá; Carvalho, Rodrigo Guimarães deThe coastal line to Almofala and Barreira beachs (Itarema, Ceará, Brazil) haved much changes, to geographic position, along by 46 years period (1958-2004). This area include Almofala and Barreira Beachs, conditioned for high temperatures and media raining 1200mm, with plateous under alluvial plain, estuarine plain, sandy plain with coastal sandy dunes, beachs and sandy terraces. The methodology consisted: (1) c...
Análise dos impactos ambientais causados em estuários: estudo do estuário do ri...
Araújo, Maria Valdirene; Freire, George Satander SáThe Basin of Acaraú is located to west of the capital from Ceará and he understands an area of 14.500Km², considered the second largest basin of Ceará. The researched area understood the area of the estuary of the river Acaraú with 80Km². The research analyzed in an integrated way the environmental attributes of the estuary of the river Acaraú, focusing the environmental impacts, as well as the identification o...
Sedimentary dynamic and composition of a tidal channel in a tropical hot semi-a...
Souza, Ian Cerdeira de Oliveira; Maia, Guilherme Augusto Mendonça; Almeida, Narelle Maia de; Abreu Neto, João Capistrano; Freire, George Satander SáTidal channels comprise a peculiar and dynamic environment. This paper aims to recognize the sedimentary distribution and composition of a tidal channel located in a semi-arid climate area in order to understand the sedimentary dynamics of the region.This region has economic and environmental importance considering that several activities are developed in the area such as; salt industry and aquaculture with shr...
Distribuição espacial de minerais pesados nos sedimentos superficiais da Plataf...
Aguiar Neto, Antônio Borges de; Marques, Wanessa Sousa; Freire, George Satander SáSpatial distribution of heavy minerals in the superficial sediments of the Western Ceará Continental Shelf, Northeast of Brazil. The continental shelf sediments of the west coast of Ceará were investigated about their texture, calcium carbonate and heavy minerals with the generation of digital bottom model of this shelf. Multivariate statistics analyses were applied for mineralogical data to aid interpretation ...
Morfodinâmica de praias dominadas por mesomarés na Planície Arenosa de Almofala...
Aguiar, Ponciana Freire de; El-Robrini, Maamar; Freire, George Satander Sá; Carvalho, Rodrigo Guimarães deMorphodynamic of beaches dominated by Mesotide in the Almofala Sandy Plain, NW of Ceará (Brazil). The morphodynamics of the oceanic beaches of the Almofala sandy plain varies due to the oceanographic parameters (waves, tides and coastal currents), meteorological (rains, winds and storms) and anthropogenic (shrimp farms). The objectives are to analyze the processes of progradation and retrogradation of the coast...
Utilização de geotecnologias: diagnóstico ambiental do estuário do Rio Acaraú, ...
Araújo, Maria Valdirene; Freire, George Satander SáThe Acaraú basin is located to the west of Fortaleza, capital from Ceará state and, it covers an area of 14.500Km² being considered the second largest basin in this state. The study area, which covers 80Km², is in the estuary of the Acaraú river, embracing the munipality of Acaraú and Cruz in the west. The research intended to analyze the geo-environmental conditions, to analyze the use process and occupation a...
Estudo preliminar dos aspectos hidrodinâmicos e sedimentológicos do estuário do...
Vasconcelos, Fábio Perdigão; Freire, George Satander SáEstuaries are transitional environments, present variations in time and space and are in a constant evolutionary process. The present study aims to evaluate, on a preliminary basis, the physical, chemical and sedimentological aspects of the Rio Cocó, in an attempt to define its hydrodynamic characteristics. The sedimentary cover of the Coco River channel is predominantly quartz sand with a medium to fine granul...
Distribuição da temperatura, salinidade, oxigênio dissolvido e massas d'água na...
Freire, George Satander Sá; Oliveira, Moisés Almeida de; Andrade, Edsard deThis paper aims at presenting the distribution patterns of some oceanographic conditions as a means of defining water masses in northeastern Brazil. The following results have been single out: 1) In the studied region, the following water masses have been identified: tropical, subtropical, and intermediate antarctic. 2) The tropical water mass occupies a very narrow area, of approximately 80 meters in breadth. ...