DSpace Coleção:
http://repositorio.unifap.br:80/jspui/handle/123456789/41
2024-02-25T12:08:45ZRisco de alagamentos influenciados por fatores ambientais em zonas urbanas de Macapá e Santana – AP
http://repositorio.unifap.br:80/jspui/handle/123456789/743
Título: Risco de alagamentos influenciados por fatores ambientais em zonas urbanas de Macapá e Santana – AP
Abstract: The drainage system of urban watersheds has been neglected as a dimension of basic sanitation in the Amazon. Despite its remarkable sanitary relevance, it is often correlated with the potentiation of flooding, which can aggravate several sanitary, environmental and public health indicators, especially in the Amazon estuary region, when extreme precipitation weather events occur in line with maximum tidal elevations. The objective of the research is to quantify the preliminary risk of flooding of urbanized sectors of the two main cities of the State of Amapá, Macapá and Santana. Specifically, outline current and future scenarios to generate subsidies for the planning of urban drainage systems and stormwater management. The methodological procedures were as follows: a) data collection at the State and Municipal Civil Defense Coordination of Macapá and Santana (CEDEC); b) data processing, literature review, preliminary definition of risk and preparation of thematic maps using the QGIS Geographic Information System; c) field visit for on-site measurement, identification of secondary impacts in rainy season and validation of geographic data provided by CEDEC. The main results were: mapping of the preliminary risk zones in 28 sectors of Macapá, with the following classification: 4 (14.29%) low, 7 (25.0%) medium and 17 (60.71%) high risk of flooding. In Santana, 6 sectors were mapped: 2 (33.33%) and 4 (66.67%) high risk of flooding. It is concluded that the preliminary risk of flooding in rainy season, associated with subnormal clusters around "hangover areas", is enhanced by the elevations of sygy tides of the Amazon River, presenting similarities in both cities in the face of stormwater management problems.0013-01-10T00:00:00ZDistribuição e caracterização espacial de barragens de rejeito nas áreas de mineração no estado do Amapá
http://repositorio.unifap.br:80/jspui/handle/123456789/742
Título: Distribuição e caracterização espacial de barragens de rejeito nas áreas de mineração no estado do Amapá
Abstract: The State of Amapá, located in the north of Brazil, in the domains of the Brazilian Amazon, has been the scene of mineral extraction activities since the 1950s. The processing of ores, over these years, generated a production of tailings resulting in the construction of dikes for storage of this material, thus forming the tailings dams. The lack of adequate monitoring of these structures represents a major threat to society, the environment and also to the economy, as was demonstrated during the accidents in Mariana and Brumadinho, in the years 2015 and 2019, respectively. The situation becomes even more worrying with the absence of systematic information on existing dams, as is the case in the state of Amapá. This fact strengthens the need for actions that contribute to the knowledge and management of these areas. Geotechnologies are considered essential tools in providing knowledge to identify and monitor threats to the environment. The support of products derived from these technologies can contribute to the study of tailings dam areas. Thus, this research aims to collect and systematize information regarding dams in the state of Amapá using geotechnological tools. It was possible to map the spatial distribution of the tailings dam areas using remote sensing images (InSAR images) and auxiliary data. Spatial analyzes, based on criteria (proximity, crossing, intersection, density, etc.), were performed using information from the amapá continuous digital cartographic base project - BCDC-AP. The recovery, visualization and analysis of information about the dams and their surroundings, allowed identifying what can be affected in the event of a possible rupture. All information was organized and structured in a geographic database of dams. As a result, a general overview of the dams in the State of Amapá was generated, their real situation and the context in which they are found through the tools of geotechnologies.0023-12-12T00:00:00ZAvaliação preliminar da degradação ambiental por sensoriamento remoto das áreas de concessão mineral para extração de ouro no distrito garimpeiro de Lourenço/AP
http://repositorio.unifap.br:80/jspui/handle/123456789/741
Título: Avaliação preliminar da degradação ambiental por sensoriamento remoto das áreas de concessão mineral para extração de ouro no distrito garimpeiro de Lourenço/AP
Abstract: The Lourenço mining operation is located in the municipality of Calçoene, in the central northern portion of the state of Amapá, approximately 95 km from the municipal capital. The environmental impacts resulting from its activity are visible and significant, especially due to the degradation of the natural environment. It is noteworthy that remote sensing and geoprocessing techniques have contributed substantially to environmental analysis, being able to detect changes that have occurred over the years and estimate the level or quantification of environmental degradation. Considering that the region presents a deficit of information about the level of environmental degradation in the area, the present research aimed, through photointerpretation and geotechnological tools, to map and quantify the area of the Lourenço Mining District in order to evaluate its environmental degradation. The methodology of the study consisted of the treatment and use of sensor products (aerial photography) from the Continuous Cartographic Base of Amapá, which were treated using ArcGis 10.7 and QGIS 2.18.16 software, to map the environmental characteristics of the gold mining area and quantify the erosive processes present in the areas of gold ore extraction. The research presents as a result, maps of land use and land cover and extent of the erosive features present in the mining concessions of gold extraction of the Lourenço gold mine, and the percentage degraded and recovered by the year 2014.0013-10-12T00:00:00ZLicenciamento ambiental e celeridade, estudo de caso: UHE cachoeira caldeirão, Ferreira Gomes, Amapá
http://repositorio.unifap.br:80/jspui/handle/123456789/517
Título: Licenciamento ambiental e celeridade, estudo de caso: UHE cachoeira caldeirão, Ferreira Gomes, Amapá
Abstract: Understand and interpret the speed applied in the environmental licensing in hydroelectric projects. The present research has as objective to analyze the celerity in the previous environmental licensing of the Cachoeira Caldeirão Hydroelectric Power Plant, Ferreira Gomes, Amapá. The development of this research is justified by the generation of knowledge about the understanding of the dynamics of time demanded by the environmental licensing of the case study and articulation of concepts related to the legal sciences, administrative sciences and environmental sciences, to the point of promoting subsidies to the public service and the academic community to leverage improvements around the time of environmental licensing process in the state of Amapá. The procedures adopted to carry out the research consist of collecting data from the licensing of the Cachoeira Caldeirão Hydroelectric Power Plant, made available on a digital medium by the Institute of Environment and Territorial Planning of Amapá (IMAP), using as a parameter of analysis: (i) the classification of fixed term and non-fixed term, (ii) the CONAMA Resolution No. 237/1997 and (iii) the concept of the principle of the reasonable duration of the process (procedural celerity). The results confirm the initial hypothesis that the environmental licensing of the Cachoeira Caldeirão HPP was not rapid, in a way, it was observed that the absence of celerity is connected to two factors: (i) the absence of orientation internal distribution of the time of application of each procedure in the pre-presentation period of EIA/RIMA, and (ii) the out of date art. 14 of CONAMA Resolution No. 237/19970018-11-07T00:00:00Z