Anuario do Instituto de Geociencias最新文献

{"title":"Evaluation of Precipitation Simulations at the Subseasonal Range in the Sao Francisco River Basin, Brazil","authors":"Maria Luisa Rocha Santos, Nicole Costa Resende Ferreira, Claudine Dereczynski, Fernanda Cerqueira Vasconcellos, Sin Chan Chou","doi":"10.11137/1982-3908_2023_46_59421","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_59421","url":null,"abstract":"The objective of this work is to evaluate the subseasonal precipitation simulations of the Eta model during the onset of the rainy season in the Sao Francisco River Basin (SFB). Accumulated precipitation every 20 days in September and October (2011 to 2015) was evaluated based on subseasonal simulations (integration period of up to 60 days) of the Eta-20- km model, nested within the Climate Forecast System Reanalysis (CFSR), here called Eta-CFSR. MERGE precipitation data were used to evaluate Eta- CFSR simulated precipitation. A statistical method was employed to evaluate the model’s ability to simulate the onset of the rainy season in the Upper SFB. The main results are: i) The Eta-CFSR accurately represents the seasonality of the precipitation pattern in the SFB and the seasonal and interannual variation of the accumulated precipitation in all of the chosen three consecutive 20-day periods of years 2011 to 2015; ii) The model can represent the transition pattern from the dry to the rainy season, showing better results in 2011 and 2015, which were marked, respectively, by La Niña and El Niño, and by anomalies of sea surface temperature favorable and unfavorable for the occurrence of precipitation; iii) Although the model underestimates the amount of precipitation, it effectively captures the seasonal patterns and the onset of the rainy season, with a maximum advancement of two pentads in wetter years and delaying it in drier years.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135819038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Classification of Urban Solid Waste Collected with the Use of Ecobarriers in Watercourses in the Municipality of Caçapava do Sul, RS","authors":"Pedro Daniel da Cunha Kemerich, Gabriel D’Avila Fernandes, Gabriel Forgiarini, Leonardo Rosa Da Silva, Douglas Bitencourt Vidal","doi":"10.11137/1982-3908_2023_46_53888","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_53888","url":null,"abstract":"Urban solid waste is a serious problem in cities when disposed in inappropriate places or when there is a deficiency in its collection, which can cause several environmental problems. In periods of rain, these problems become more evident when these residues are transported to drainage networks and water courses, accumulating and creating obstacles to the flow, causing floods, floods, etc. In this regard, this work aimed to collect and classify urban solid waste in two water courses in the municipality of Caçapava do Sul, an ecological barrier made with recyclable materials called Ecobarrier, placed across water courses in order to retain floating waste that is transported by water. As a result, the vast majority of residues retained in the eco-barriers correspond to the category of organic matter, this is due to the vegetation around the water bodies studied, followed by the plastic, metal and textile category respectively. Thus, it can be seen that the presence of floating garbage in the water courses of the municipality partially reflects the lack of concern on the part of the population and governments with its effects on human and environmental health. It is in this context, to avoid the generation of floating waste, that the integration of public policies can play a fundamental role, with the help of environmental education.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136234257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Semiautomatic Mapping of Center Pivot Irrigated Areas Using Sentinel-2 Images and GEOBIA Approach","authors":"Leandro Guimarães Maranha, Alzir Felippe Buffara Antunes","doi":"10.11137/1982-3908_2023_46_57987","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_57987","url":null,"abstract":"Image analysis and feature extraction of remoted sensing data are significant for mapping irrigated agriculture areas as a source of information to improve water management and agricultural planning. This paper presents an image segmented base approach GEOBIA (Geographic Object-Based Image Analysis) to extract irrigated areas by Center Pivot Irrigation System (CPIS). This study suggests a semi-automated recognition of circular patterns for the mapping of irrigated regions by center pivots, using Sentinel -2 MSI images, 10 meters spatial resolution. A set of images from different seasons, humid and dry are used to maximize de CPIS’s occurrence. A multiresolution segmentation method was applied, and a large number of segment-based shape features was extracted and used as input to a feature selection procedure (shape descriptors: Area; Compactness; Circularity Factor; Length/Width; Radius of smallest enclosing ellipse; and Roundness). In addition, another shape descriptor “Circularity Factor” was developed in this research and played an important role during preliminaries classification processes. The accuracy assessment of preliminaries classifications has validated used the Circularity Factor together with the other chosen shape descriptors to reach better results to CPIS’s detection. Furthermore, 86.23% of the CPIS mapped in the classification process is in accordance with the ground truth map. This methodology can be used to map large areas in a relatively short time and provides a tool for monitoring irrigated areas.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136295639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How Eco-Spatial Edutourism Support Sustainability in Coastal Areas in South Malang, Indonesia?","authors":"Sumarmi Sumarmi, Ardiyanto Tanjung, Alfyananda Kurnia Putra, Siti Zubaidah, Rajendra P Shrestha, Agung Suprianto","doi":"10.11137/1982-3908_2023_46_47725","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_47725","url":null,"abstract":"This study aimed to determine the effect of edutourism based on eco-spatial to support sustainability in coastal areas in South Malang, East Java, Indonesia. The qualitative research design is conducted at Kondang Merak Beach, Pesanggrahan Beach, Bajulmati Beach, CMC (Clungup Mangrove Conservation) Tiga Warna, Tamban Beach, and Perawan Beach, which located in South Malang Regency, East Java, Indonesia. Data were taken using participant observation, documentation, and in-depth interviews. Data analysis used qualitative analysis from Miles and Huberman, consisting of three stages, reduction, data presentation, and conclusions. The result found that each beach has unique qualities depending on the surrounding environment and can be developed into an edutourism destination. Edutourism has benefited environmental sustainability, showed in the condition of natural resources in maintained tourist attractions (mangroves, coral reefs, pine shrimp, sea pandanus, turtles, and crabs), and maintained cleanliness at tourist areas.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136295046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization and Geological Meaning of the Crystalline Basement Occurrence in the Unaí Region, Minas Gerais State (Central Brasilia Belt)","authors":"Florença Das Graças Moura, José Eloi Guimarães Campos","doi":"10.11137/1982-3908_2023_46_46563","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_46563","url":null,"abstract":"Granitoid rocks petrographically and compositionally characterized as tonalite, monzonite granodiorite and granite were observed in restricted areas in the central portion of the external zone of the Brasilia Belt. These outcrops of peraluminous rocks were interpreted as the sialic basement of the region, associated with paleogeographic highs prior to the deposition of the Proterozoic sedimentary cover. U-Pb zircon age of 2.14 Ga and geochemical analysis are compatible with other Paleoproterozoic bedrock areas observed mainly in the north Brasilia Belt. The existence of a basement bulkhead conditioned the Neoproterozoic deformation, causing the inflection of regional structures from NNW to N60-70W and over again to the NNW regional trend. The absence of contact metamorphism along the adjacent supracrustal rocks, regional foliation attitude that is different from that observed in the granitoids (tonalite, granotiorite, monzonite and granite) and the older age, show that these rocks represent basement windows and not younger intrusive bodies, as previously interpreted. The rocks studied in this research are correlated to the Aurumina Suite, which represents the main basement rock set in the North Brasília Belt.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136307119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Unusual Fossiliferous Site in the Romualdo Formation in the Socorro Basin (Northeast Brazil)","authors":"Olga Alcântara Barros, Antônio Álamo Feitosa Saraiva, Juliana Trindade Marques de Oliveira, Edilson Bezerra Dos Santos Filho, Ana Maria de Souza Alves, Flaviana Jorge de Lima, Renan Alfredo Machado Bantim","doi":"10.11137/1982-3908_2023_46_57260","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_57260","url":null,"abstract":"The Santana Group, from the base to the top, comprises the Barbalha, Crato, Ipubi, and Romualdo formations. Calcareous concretions from the Romualdo Formation are found in the Araripe Basin, but the geographic extension of this sequence has evidence in the Socorro Basin on the border of the state of Pernambuco; however, these areas outside of the Araripe Basin have rarely been investigated. The purpose of this research was to carry out a data survey of fossils collected in the Romualdo Formation from the Socorro/Santo Ignácio Basin area that were found in the northeastern portion of Ouricuri municipality in the state of Pernambuco; a new fossiliferous site, known as the Cara Branca site, is reported. Samples were collected from the surface and often in the off-season. This area is cleared by tractors for planting, either exposing fossils or moving some of the fossils. This disturbance reinforces the need for fossil rescues and excavations in this area, where weathering, agricultural machinery, and erosion can damage the fossil record. According to the initial paleontological sampling, the obtained taphonomic information pointed to rapid burial, and the degrees of disarticulation observed in some specimens indicated that disarticulation occurred through necrolysis.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135150431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Community-Based Joint Business Model Design for Solutions to Implementing Technology Innovation in Small Farmers","authors":"Yudi Rustandi, Restu Wulandari, Mirna Savitri","doi":"10.11137/1982-3908_2023_46_55775","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_55775","url":null,"abstract":"In general, small-scale farmers in rural areas often experience obstacles in implementing technological innovations offered by agricultural extension workers. Obstacles can come from within the individual breeder himself. The theory of small farmers and the theory of collective action is expected to solve the obstacles to implementing these technological innovations. This study aims to analyze and find solutions to the obstacles to implementing technological innovation at the individual level of small farmers in rural areas. Researchers took case study research with a research and development (RD) method approach to find the construction of a joint venture model. Qualitative methods are used in Focus Group Discussion (FGD) activities. At the same time, the quantitative descriptive research method is to evaluate the results of implementing the joint venture model. The population and the evaluation research sample were members of the Ampelsari Makmur Jaya farmer group in Pasuruan Regency and the La Tulip Farmer/Women Group in Lamongan Regency. The number of respondents for the perception evaluation was 68, determined as a total sample. Data was collected through participation techniques, in-depth interviews, FGDs and surveys. The evaluation perception was analyzed using descriptive analysis and Score T. The evaluation of respondents’ perceptions resulted in the farmers accepting the establishment of community-based business units (complete feed and pastured chicken business). The solution is also considered effective in solving the obstacles to applying technological innovation by rural and small-scale farmers in Indonesia.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135150265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proposal for Technical Registry of Sanitation Networks through an open structure using SpatiaLite database","authors":"Juarez Antônio da Silva Júnior, Ubiratan Joaquim da Silva Júnior, Thaisa Manoela Silva França, Wallamys Alexandre Ramos Venancio","doi":"10.11137/1982-3908_2023_46_55179","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_55179","url":null,"abstract":"Investment in sanitation and infrastructure is essential to ensure quality of human life, so its absence or fragility can lead to a scenario of calamities. Among the elements that constitute the infrastructure of a sanitation system is the technical register responsible for gathering all the information inherent to the system from the implementation of the network to the final destination of the effluent, provided for in the stages of design, execution and continuity of operations. As a result, GIS have become fundamental tools for the registration of sanitation networks, as they provide the integration of descriptive and graphic data in the same base. In this context, the objective of this study was the implementation of a database in free software through the SpatiaLite extension, aggregated georeferenced spatial information of components of a sanitary sewage network, producing a proposal for a Technical Registry. Processing was developed in the software QGIS 3.16, in which the elements of “Inspection Box” were used in the model, being represented vectorially by geometry of “Point” and “Extension” represented by “Line” to form a spatial system on the structure and location by means of vectorization on screen. As a result, the implementation of the register through the SpatiaLite platform, ensured fast processing, positional accuracy, conformity of cartographic representation, topology between classes, format consistency and completeness. However, the database enabled to analyze together all the components interrelated with the sewage system, through technical information for the management and efficiency of basic sanitation services.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43159986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geological Characterization, Lithogeochemistry and the Metallogenic Potential for Chromium of the Riacho do Mocambo Mafic-Ultramafic Body, Northeast of the São Francisco Craton, BA, Brazil","authors":"Ib Silva Câmara, J. H. S. Sá, Luís Rodrigues Oliveira, Tatiana Silva Ribeiro, A. Misi, Pedro Ribeiro Rabelo de Santana, M. M. Paim, Carlos Alberto Campos da Purificação","doi":"10.11137/1982-3908_2023_46_52274","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_52274","url":null,"abstract":"In the geotectonic context of the Salvador-Curaçá Orogen, north portion of the São Francisco Craton, an association of mafic-ultramafic (M-UM) rocks was identified and described in this paper as the Riacho do Mocambo Mafic- Ultramafic Body (RMMUB). Despite being located approximately 60 km from the Vale do Jacurici Complex (VJC), the host of Brazil’s largest reserves of  Cr, the RMMUB has never been associated with this Complex in regional geologic mapping projects. When it is mentioned in the bibliography, the M- UM rocks of the RMMUB are genetically related to the São José do Jacuípe Suite (SJJS). While the VJC is described as differentiated sills, associated with a synorogenic to a tardi-orogenic event, the SJJS is interpreted as fragments of an Archean-Paleoproterozoic oceanic crust or as a Gabbro- Anorthosite Stratiform Complex. Such contrasting genesis raised doubts about the RMMUB’s origin and field work along with geochemical analyses were carried out in order to better understand the possible source of the RMMUB. In the field, the RMMUB exhibits an elongated shape of small thickness (7 km of extension by less than 100 m of apparent thickness), displayed concordantly with the Tanque Novo-Ipirá Complex metasediments. In the mapped outcrops it is possible to observe the rhythmic and gradual alternation amid the lithotypes of the RMMUB, varying from serpentinite to metagabbro, suggesting that it is a layered igneous body. The geochemical results support the primitive aspect of the ultramafic rocks of this body (MgO up to 38 wt.%; Ni up to 2972 ppm; Cr up to 7799 ppm) and suggest that the RMMUB shows distinctive characteristics from the SJJS, but similar ones with magma of the VJC such as geochemical signatures, source, depth, and tectonic environment. The discovery of this new M-UM body in an area of great metallogenic fertility opens a potential for the identification of new Cr mineralization and magmatic sulfides of Ni, Cu, and EGP, in the Salvador- Curaçá Orogen, São Francisco Craton, the northeast region of the state of Bahia.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44916636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feasibility of Using Topographic Data by TOPODATA Image in Urban Drainage Projects","authors":"Lilian Paixao Aleixo de Sousa, Lindemberg Lima Fernandes, Germana Menescal Bittencourt","doi":"10.11137/1982-3908_2023_46_55405","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_55405","url":null,"abstract":"In general, the urbanization process in cities increases the impermeabilization of the soil, increasing surface runoff, leading the population to suffer from risks of flooding. In this context, the design of the drainage system is fundamental, which depends on the terrain characteristics. The total station is one of the most used equipment in topographic survey in field service. With the technological advance, it is possible to obtain this information remotely, as through satellite image with the aid of geoprocessing software. Thus, the objective of this research was to carry out a feasibility study on the use of topographic data obtained by TOPODATA Project images generated by Instituto Nacional de Pesquisas Espaciais - INPE in an urban drainage project. The seat of the municipality of Ipixuna do Pará was adopted as study area, where altimetry information was obtained by total station and by TOPODATA images. The interpolation kriging method was used to generate the contour lines and the Digital Terrain Model (DTM). To evaluate the performance of the TOPODATA data, the Pearson correlation coefficient test (R) and the Root Mean Square Error (RMSE) were used. For the microdrainage project, an area of approximately 14 hectares was delimited within the municipality's seat. From the statistical analysis, satisfactory results were obtained with R of 0.81, a “very high” correlation; and the RMSE of 1.27 m in the project area. Therefore, it was verified that it is feasible to use the TOPODATA image in the altimetry survey for areas considered small, with good correlation, considering the agility in obtaining the data, allowing access to information in places of difficult access, in addition to the economic aspect.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135670950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}