Navegando por Assunto "SIG"

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Acesso aberto (Open Access)
Avaliação da distribuição espacial da malária e da leishmaniose tegumentar no município de Tomé-Açu/PA
(Universidade Federal do Pará, 2020-12) NUNES, Raquel Soares Casaes; CASAES, Roberta Soares
The municipality of Tomé-Açu/PA has development geared to wards agriculture, but as a result of deforestation and the city's growth, the population has become susceptible to contact with vectors of Infectious and Parasitic Diseases (IPDs). Due to insufficient information on the spatial distribution of the occurrence of DIPs in the mesoregion of northeastern Pará and the possibility of new information that contributes to the environmental management of municipalities, this work seeks to map the spatial distribution of 2008 and 2018 on the cases registered in the municipality. It is, therefore, a quantitative and qualitative research that correlates the Cutaneous Leishmaniasis and Malaria IPDs with deforestation. The data were obtained from the municipality's health secretary to obtain the places where the diseases occurred. After the data import procedure, the Kernel Density estimator and the Global Moran Index were applied to generate maps for 2008 and 2018 that show the different densities of the phenomena and the areas of greatest epidemiological risk, where the use and occupation of the are predominant factors for the epidemic of IPDs in the region due to human occupation in the vicinity of newly deforested areas. According to the numbers of registered cases, Cutaneous Leishmania is was the disease with the highest incidence in the years 2008 and 2018. However, Malaria predominated in the rural area in 2008. It is concluded that the methodology used can contribuited the understanding from where surveillance and control actions for the population's health could be intensified.
Acesso aberto (Open Access)
Dinâmica temporal da cobertura vegetal da Comunidade Água Fria na RDS Alcobaça em Tucuruí-PA
(Universidade Federal do Pará, 2021-12-27) SILVA, Renata Albuquerque da; GODOY, Bruno Spacek; http://lattes.cnpq.br/4036516695601666; https://orcid.org/0000-0001-9751-9885
The Tucuruí Hydroelectric Power Plant has great socioeconomic and environmental importance for the southeast region of Pará, due to the formation of its artificial lake, resulting in changes in vegetation cover and loss of biodiversity. This study seeks to understand the dynamics of change in vegetation cover that occurred in the Água Fria Community, RDS Alcobaça, after the filling of the Tucuruí Reservoir, making it possible to understand the changes resulting from deforestation and subsidize proposals for interventions. Digital Image Processing (PDI) techniques were used, divided into stages: Landsat 8, Landsat 7 and Landsat 5 image acquisition; combination of spectral bands (Band 3 and Band 4) and atmospheric correction; NDVI calculation, map production and statistical analysis. To obtain the orbital images, the U.S.G.S. digital platform was used, in the months of July, August and September, from 1990 to 2020, with intervals of two years. The NDVI value showed no relationship with the years, indicating that during the years analyzed there was no significant reduction in the vegetation cover on the ground in the Água Fria community, in the Alcobaça RDS.
Acesso aberto (Open Access)
Espacialização de informações na gestão de sistemas de abastecimento de água utilizando sistema de informação geográfica
(Universidade Federal do Pará, 2010-06-16) SANTOS, Aline Christian Pimentel Almeida; PEREIRA, José Almir Rodrigues; http://lattes.cnpq.br/9918600634569244
To evaluate the spatial information in the management of Water Supply System (ATS). For this they were defined and adopted to the survey (Phase 1), being divided into data of actual losses, commercial and operating expenses. In Phase 2, the base map of study area and data used were stored and organized in a Geographic Information System (GIS) using ArcGIS 9.3 software, which built the data model for the study, and defined the topology be used for identification of specialized data, building the database and the creation of georeferenced layers. In phase 3 was calculated from water balance in the main units of SAAs studied with certain losses in raw water supply, treatment, on the reservation, and distribution. In phase four indicators were calculated to evaluate the performance of SAAs, including: coverage index, total index of actual loss, loss index in the collection, rate of loss of business, index of energy consumption in SAA, index of energy costs Electric, among others. In phase 5 was proposed to the spatial and GIS presentation of the results obtained in earlier phases. Thus, considering the data adopted, it was possible to identify the values of actual losses and performance indicators in each sector of the SAA studied, being, for example, sector 9, which presented the highest rate of total loss, reaching 59, 10%, followed by sections 4, 8 and 5. The most significant loss for the system was the loss distribution, with 9 industry to a loss of 57% loss on treatment was 3.4% in the third sector, and sectors with the highest loss of adduction weresectors 6 and 8, with 3.5%. The percentage of water unaccounted were higher in sectors 1 and 5. Sectors 1, 3, 4 and 6 are those with the highest energy consumption per volume of water produced. Therefore, the spatial data in GIS facilitated the visualization and data analysis adopted in this research.