Papers by Victor Fernandez Nascimento
The Land Surface Temperature (LST) is an essential indicator for analyzing the Surface Urban Heat... more The Land Surface Temperature (LST) is an essential indicator for analyzing the Surface Urban Heat Island (SUHI). A factor contributing to its occurrence is the reflections of the different materials in urban and rural areas, which significantly affect the energy balance near the surface. Therefore, recent studies have increasingly used the Local Climate Zones (LCZ) classification system to discriminate those urban areas. Therefore, our study aims to do a systematic review using the PRISMA method of LCZ classification applied to understand the LST and the SUHI phenomenon. At first, it was found in the scientific literature 10,403 articles which, after passing through filtering stages, resulted in 51 that were further analyzed. Our results showed that these articles were very recent, beginning in 2016. However, presenting an increasing trend. China was the country with more studies. Landsat and TERRA/AQUA sensors appeared in 82% of the studies. The method that appears the most to LCZ definitions is from the World Urban Database. Finally, considering the current climatic changes, this systematic review can help new studies on SUHI identification through LCZ in different world areas using remote sensing data to estimate the LST.
Spatial Modeling of Fire in the Atlantic Forest Considering Future Climate Change Scenarios in Rio Grande Do Sul State – Brazil
Assessment of Urban Heat Island in the Northeastern State Capitals in Brazil Using Sentinel Satellite Data – 3 SLSTR
The Surface Urban Heat Island (UHI) is caused by the difference in temperature between the urban ... more The Surface Urban Heat Island (UHI) is caused by the difference in temperature between the urban and its surrounding areas. However, in the scientific literature, there is no solid methodology defining urban and non-urban areas, which is essential to estimate the SUHI with greater accuracy. This study uses the official national urban areas limit, to obtain the SUHI more accurately on the nine northeastern Brazilian capitals. The land surface temperature was obtained using the Sentinel 3 satellite data for the years 2019 and 2020. Afterward, the maximum and average SUHI, and the complementary indexes were calculated, such as the Urban Thermal Field Variation Index (UTFVI) and the Thermal Discomfort Index (TDI) for the urban areas and their surrounding areas. The Maximum and Average SUHI, obtained values between 1.85 and 8.25 and -4.92 and 2.59 degree difference, respectively, proving the SUHI existence in the study areas. The UTFVI, with values between 0.010 and 0.040, expresses how bad the eco-environmental spaces of urban are. The TDI, with values between 24.61 and 28.89 ºC, expresses the population’s thermal comfort. Therefore, this study provides a better understanding of the surface UHI pioneeringly for the Brazilian Northeast Region.
Modeling municipal solid waste disposal consortia on a regional scale for present and future scenarios
Socio-economic Planning Sciences, Aug 1, 2022
Frontiers in remote sensing, May 16, 2023
Fire has been an intrinsic ecological component of the ecosystems, affecting the public, economic... more Fire has been an intrinsic ecological component of the ecosystems, affecting the public, economic, and socio-cultural policies of human-nature interactions. Using fire over grassland vegetation is a traditional practice for livestock in the highland grasslands and has economic and environmental consequences that have not yet been understood. A better description of the spatio-temporal biomass burning patterns is needed to analyze the effects of creation and application in these areas. This study used remote sensing techniques based on Sentinel-2 data and machine learning algorithms to identify burning scars and compare them with a national fire collection database for the highland grasslands in the Atlantic Forest Biome in Brazil. The aim is to evaluate public management tools and legislation evolution during the 35 years of the time series analyzed. The results indicated that 12,285 ha of grasslands were converted to other uses, losing about 24% of their original formation, with 10% occurring after banned this practice in 2008. The burned areas classification using the Random Forest algorithm obtained an AUC = 0.9983. Divergences in the burned area's extent and frequency were found between the municipality's authorized license and those classified as burned. On average, only 43% of the burned area in the Parque Estadual do Tainhas and its buffer zone had an environmental permit in the last 5 years. This research's results provide subsidies for revising and creating public policies and consequently help territorial management.
Spatial Modeling of Fire in the Atlantic Forest Considering Future Climate Change Scenarios in Rio Grande Do Sul State – Brazil
Geodetic landmarks (GLs) are essential for obtaining the precise height, horizontal coordinates, ... more Geodetic landmarks (GLs) are essential for obtaining the precise height, horizontal coordinates, and the Earth's gravity field. Once physically implanted on the surface, they are susceptible to movement and displacement. This study aims to assess the soil susceptibility of GLs for past and future scenarios through the Revised Soil Loss Equation (RUSLE). So the soil loss estimations were made for the GLs in Brazil's southern Santa Catarina region. Our results showed average soil loss values, reaching 175915 t/ha/year, while the GLs were 2109 t/ha/year. There was an increase in GLs in the null class, mainly caused by urban infrastructure increase. At the same time, a decrease occurred in the low, very severe, severe, and moderate classes. In contrast, for future scenarios, an increase in the GLs average soil loss was found until 2100. However, it is essential to highlight that the most relevant increase occurred in the 2021-2040 period. After that, some scenarios as ssp126 rem...
Remote Sensing
The Land Surface Temperature (LST) obtained by remote sensing data is an essential indicator for ... more The Land Surface Temperature (LST) obtained by remote sensing data is an essential indicator for analyzing the Surface Urban Heat Island (SUHI). A factor contributing to its occurrence is the reflections of the different materials in urban and rural areas, which significantly affect the energy balance near the surface. Therefore, recent studies have increasingly used the Local Climate Zones (LCZs) classification system to discriminate those urban areas. Therefore, our study aims to perform a systematic review using the PRISMA method of LCZ classification applied to understand the LST and the SUHI phenomenon. At first, 10,403 related articles were found in the scientific literature which, after passing through filtering stages, resulted in 51 that were further analyzed. Our results showed that these articles were very recent, beginning in 2016, and present an increasing trend. Even though all articles reviewed somehow try to understand the Urban Heat Island phenomenon, in more than h...
Revista de Teledetección, 2018
Vast small inner marsh (SIM) areas have been lost in the past few decades through the conversion ... more Vast small inner marsh (SIM) areas have been lost in the past few decades through the conversion to agricultural, urban and industrial lands. The remaining marshes face several threats such as drainage for agriculture, construction of roads and port facilities, waste disposal, among others. This study integrates 17 remote sensing spectral indexes and decision tree (DT) method to map SIM areas using Sentinel 2A images from Summer and Winter seasons. Our results showed that remote sensing indexes, although not developed specifically for wetland delimitation, presented satisfactory results in order to classify these ecosystems. The indexes that showed to be more useful for marshes classification by DT techniques in the study area were NDTI, BI, NDPI and BI_2, with 25.9%, 17.7%, 11.1% and 0.8%, respectively. In general, the Proportion Correct (PC) found was 95.9% and 77.9% for the Summer and Winter images respectively. We hypothetize that this significant PC variation is related to the rice-planting period in the Summer and/or to the water level oscillation period in the Winter. For future studies, we recommend the use of active remote sensors (e.g., radar) and soil maps in addition to the remote sensing spectral indexes in order to obtain better results in the delimitation of small inner marsh areas.
Revista Brasileira de Cartografia
Avaliar o impacto do fogo em formações campestres requer uma compreensão das relações ambientais ... more Avaliar o impacto do fogo em formações campestres requer uma compreensão das relações ambientais e antrópicas sobre a dinâmica da paisagem. Este estudo faz uma revisão da literatura para entender o comportamento do fogo em formações campestres por meio de técnicas de sensoriamento remoto. Para isso foi utilizada a base de dados da Scopus por meio do método PRISMA com o auxílio de mapeamento de clusters. Primeiramente, foram encontrados 7.881 artigos na literatura cientifica, onde foram aplicados os passos metodológicos, resultando em 67 artigos, os quais foram utilizados na análise. Os resultados apontam uma tendência de crescimento de pesquisas com a temática, sendo o Brasil o segundo país com maior contribuição ao resultado. Grande parte das publicações utilizaram imagens orbitais, porém há um crescimento recente da utilização de imagens obtidas por sensores acoplados a VANT’s. Além dos índices espectrais NDVI e EVI, observa-se a recente a utilização de outros índices para analisa...
Modeling municipal solid waste disposal consortia on a regional scale for present and future scenarios
Socio-Economic Planning Sciences
Land, 2022
Aquaculture is currently one of the fastest growing food production systems globally, and shrimp ... more Aquaculture is currently one of the fastest growing food production systems globally, and shrimp is considered one of the most highly valued products. Our study area is the lower Jaguaribe River sub-basin (LJRSB), located in the northeastern part of Ceará in Brazil. The aquaculture activity in this area began in the early 1990s and is currently one of the largest shrimp producers in Brazil. This study generated a spatial-temporal analysis of vegetation index and land use and land cover (LULC) using remote sensing images from Landsat satellites processed using geographic information systems (GIS). The findings showed an increase in the water bodies class where shrimp farms are found. In addition, to help us discuss the results, data from the Global Surface Water Explorer was also used to understand this change throughout intra and interannual water variability. Besides shrimp farms’ intensification, agricultural areas in the LJRSB also increased, mainly in the irrigated perimeter lan...
Development and challenges in Brazilian municipal solid waste management
The generation of municipal solid waste (MSW) has increased over time in Brazil, along with chang... more The generation of municipal solid waste (MSW) has increased over time in Brazil, along with changes in waste quality, which gives rise to discussions regarding the importance of properly managing and disposing of these wastes. Currently, issues involving the management of MSW have a central focus in carrying out public policies. Effective implementation of the National Solid Waste Policy (NSWP) - Law nº. 12,305/2010 is expected to bring changes in the panorama of solid waste in Brazil. This work is a review of literature that aims to address some aspects of the MSW in Brazil, considering some changes expected to occur in the public sector after NSWP implementation. Some data is presented and discussed in order to foster an understanding of the evolution of MSW management in Brazil and to highlight challenges for the NSWP compliance with regulation, such as the expansion of the collection and treatment of MSW, more active societal involvement in waste-separation processes and the dif...
Indicação de áreas para aterro sanitário, utilizando Geoprocessamento
Revista Brasileira de Geografia Física
Neste estudo foram analisadas as formações vegetais em Angola levando em consideração dois níveis... more Neste estudo foram analisadas as formações vegetais em Angola levando em consideração dois níveis de classificação, o de fitofisionomia (N1) e o de uso e cobertura da terra (N2). Além disso, foi analisado através de parâmetros estatísticos zonais o comportamento da distribuição espacial e temporal da fenologia da vegetação por um período de 18 anos levando em consideração algumas características físicas como o relevo, índices de vegetação (EVI), evapotranspiração normalizada (ETn) e precipitação. As séries temporais foram processadas para se extrair as métricas fenológicas do início, fim e comprimento, taxas de rebrota e senescência da vegetação. Os resultados permitiram observar grande heterogeneidade na representação das métricas fenológicas, pela qual, foi possível caracterizar os diferentes tipos de vegetações. As áreas representadas por vegetação nativa como florestas, savanas e formações de estepes apresentaram maiores áreas se comparadas com as restantes classes como solo exp...
Energies
The urban population increase in the world, the economic expansion, and the rise in living standa... more The urban population increase in the world, the economic expansion, and the rise in living standards associated with society’s habits and lifestyles accelerated the municipal solid waste (MSW) generation in undeveloped countries, such as in Brazil, in which the generation increased by 25% from 2012 to 2017. In the same period, the São Paulo state, the richest Brazilian state, increased its municipal solid waste generation by 51%. All this MSW needed to be collected and transported, and this process has a high economic and environmental cost. Therefore, this study aims to identify, using spatial analysis, the routes used by MSW trucks to estimate the distances traveled to dispose of the MSW on a regional scale considering all municipalities in the São Paulo state. The findings showed that the landfill numbers decrease, mainly individual ones, which receive MSW only from the city where it is located. Otherwise, the consortium landfills number is increasing, as well as the number of mu...
Proposta para indicação de áreas para a implantação de aterro sanitário no município de Bauru-SP, utilizando análise multi critério de decisão e técnicas de geoprocessamento
A história da coleta de resíduos em Novo Hamburgo, RS e uma proposta de uma nova roteirização utilizando sistema de informações geográficas
The Municipal Solid Waste (MSW) increasing in the world is a direct consequence of population and... more The Municipal Solid Waste (MSW) increasing in the world is a direct consequence of population and consumption growth. Each year more and more MSW is generated, which needs to be correctly collected and transported. This MSW management stage addresses the collection and transportation of waste from cities to a landfill and is one of the steps that most damage the environment through greenhouse gas (GHG) emissions. This study made a historical analysis of the MSW management in the Novo Hamburgo city located in the Rio Grande do Sul state and proposed a new route for MSW collection vehicle trucks using different scenarios. For this, the Network Analyst tool was used within a Geographic Information System software to identify the most efficient routes for MSW collecting vehicles. Based on this information, the financial costs and GHG emissions to carry out the MSW collection were estimated. The results showed that to mitigate the gases emitted by MSW collection trucks in one year, it wo...
COLÓQUIO - Revista do Desenvolvimento Regional
Sabe-se que cerca de 85% da população brasileira reside em áreas consideradas urbanas as quais tê... more Sabe-se que cerca de 85% da população brasileira reside em áreas consideradas urbanas as quais têm se expandido e alcançado cada vez mais territórios rurais. Neste estudo fez-se um levantamento de temas relacionados à urbanização, ruralidade e com a nova ruralidade. Como área de estudo escolheu-se quatro loteamentos localizados nas áreas periféricas do município de Osório, um dos polos de sua região no Litoral Norte do Rio Grande do Sul. Para identificar as características socioeconômicas das pessoas que residem ou possuem casas nestes loteamentos e poder caracterizar estes espaços foram aplicados questionários compostos de 17 perguntas para 22 pessoas de diferentes unidades habitacionais. Os resultados demonstraram que as pessoas que ocupam esses loteamentos para fins de moradia são de baixa renda, com edificações preponderantemente de até 50m². Também se identificou diferença no perfil dos que utilizam os loteamentos para fins de moradia em comparação com os que utilizam como segu...
Análise multicritério da suscetibilidade a leptospirose, Rio Grande do Sul/ Brasil
Estudos sobre Sensoriamento Remoto, Cartografia e Geoprocessamento – Volume 1
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Papers by Victor Fernandez Nascimento