R. Albuquerque, Bruna Araujo Candeia, João Rodrigues Tavares Júnior, A. Candeias
{"title":"Comparação dos índices NDVI e NDBI para imagens MUX/IRS/CBERS-4 com número digital (ND) e reflectância (ρ) manocromática","authors":"R. Albuquerque, Bruna Araujo Candeia, João Rodrigues Tavares Júnior, A. Candeias","doi":"10.29150/2237-2202.2021.250105","DOIUrl":"https://doi.org/10.29150/2237-2202.2021.250105","url":null,"abstract":"","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124255404","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}
Freds Fernando Alves De Almeida, J. Cantalice, Débora Teresa Da Rocha Gomes Ferreira De Almeida, Werônica Meira De Souza, Vijay Singh
{"title":"Trend analysis in rainfall time series in some Brazilian semiarid cities","authors":"Freds Fernando Alves De Almeida, J. Cantalice, Débora Teresa Da Rocha Gomes Ferreira De Almeida, Werônica Meira De Souza, Vijay Singh","doi":"10.29150/2237-2202.2021.252166","DOIUrl":"https://doi.org/10.29150/2237-2202.2021.252166","url":null,"abstract":"Nowadays, the climate changes are a frequent issue of the scientific community, and although it occurs on a global scale, its impacts often vary from region to region. The objective of this research was to identify the climatic change trends from rainfall in some Brazilian semiarid cities of the Pernambuco state. The Mann-Kendall and Sen-slope trend tests were applied to detect possible trends in the rainfall time series. In addition, the Pettitt test was also applied to identify abrupt changes in precipitation records represented by break points in the time series. The results showed trends of climatic changes in rainfall in fifteen cities, being observed in some localities the decrease of the tendencies in the rainy season, representing a serious problem that compromises the water supply, suppresses agricultural activities, thus making life difficult for the population, because it's in this short rainy season that the water reservoirs of the region are replenished.","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125921350","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}
Cassiano Dias de Souza, C. R. Duarte, M. P. Miranda, Márcio Regys Rabelo De Oliveira, Sharon Gomes Ribeiro, A. Teixeira
{"title":"Caracterização espectrorradiométrica (VNIR-SWIR) do minério magnesítico da porção centro-sul do estado do Ceará","authors":"Cassiano Dias de Souza, C. R. Duarte, M. P. Miranda, Márcio Regys Rabelo De Oliveira, Sharon Gomes Ribeiro, A. Teixeira","doi":"10.29150/JHRS.V11.1.P51-62","DOIUrl":"https://doi.org/10.29150/JHRS.V11.1.P51-62","url":null,"abstract":"Due to the practicality, speed and low cost of operation, the use of spectroradiometry has become an important tool in determining the composition of materials, being used in the characterization of boreholes, support and orientation of mining fronts, and as support to interpretation of remote sensing images. To perform the spectroradiometric characterization of the magnesitic ore of the state of Ceara (Brazil), the FieldSpec Pro FR spectroradiometer (350 to 2500 nm) was used. The samples were collected from the mines Cabeca de Negro, Riacho Fundo and Torto, and subsequently cut and polished in order to obtain uniform surfaces, and thus minimize the effect of the sample relief and of any surface weather. Data acquisition was carried out in the laboratory, without any interference from external lighting, with three spectral measurements made at different points of each sample. The spectral features that characterized the analyzed ore were attributed to iron (350 to 750 nm, 1000 nm and 1700 nm), water/hydroxyl (1390 nm, 1440 nm and 1940 nm), to the Mg-OH bond (2070 nm and 2390 nm) and carbonate (1850 nm, 1970 nm, 2130 nm and 2300 nm), with the albedo and intensity of the features being influenced by the presence of organic matter and particle size. According to the spectral characteristics, the magnesitic ore studied could be classified into four distinct groups, called hydrated magnesite, anhydrous magnesite, ferrous magnesite and carbonaceous magnesite.","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128066189","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}
Diêgo Lima Crispim, Paulo Eduardo Silva Bezerra, Gabriel Villas Boas de Amorim Lima, Lindemberg Lima Fernandes
{"title":"Caracterização morfométrica da bacia hidrográfica do Igarapé Quarenta Horas no município de Ananindeua, Pará","authors":"Diêgo Lima Crispim, Paulo Eduardo Silva Bezerra, Gabriel Villas Boas de Amorim Lima, Lindemberg Lima Fernandes","doi":"10.29150/JHRS.V11.1.P1-10","DOIUrl":"https://doi.org/10.29150/JHRS.V11.1.P1-10","url":null,"abstract":"Bacias Hidrograficas urbanas estao suscetiveis a intensiva acao antropica do entorno, cuja ocupacao espacial insuficientemente ordenada resulta em prejuizos tanto para uma populacao quanto ao meio ambiente. Sobre isso, conhecer como caracteristicas morfologicas das bacias hidrograficas e uma etapa fundamental na construcao de politicas publicas de gerenciamento sustentavel de aguas urbanas. Tendo isso em vista, este estudo objetivou realizar uma caracterizacao morfometrica da bacia hidrografica do Igarape Quarenta Horas, localizada no municipio de Ananindeua-PA. Os metodos de aplicacao de ferramentas SIG e aplicacao de Modelos Digitais de Elevacao, que permitem quantificar as caracteristicas geometricas, da rede de drenagem e de relevo, dificuldades em 33 variaveis identific. Resultados indicaram que a bacia nao tendencia de inundacao e condicoes satisfatorias de escoamento. Contudo, o municipio apresenta o menor indice de saneamento basico do Brasil, o que justifica a ocorrencia de constantes alagamentos mesmo com uma facilidade morfometrica natural da area.","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126446317","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":"Georreferenciamento de imóveis rurais e pontos indicadores de degradação ambiental no açude Marcela, Sergipe","authors":"Janisson Batista de Jesus, Rui Flexa do Nacimento","doi":"10.29150/JHRS.V11.1.P11-17","DOIUrl":"https://doi.org/10.29150/JHRS.V11.1.P11-17","url":null,"abstract":"A expansao territorial irregular e um problema constante entre os residentes do Brasil gerando, ainda, conflitos com o meio ambiente e a gestao publica, que, em varios casos, e incapaz que acompanhar e controlar o crescimento das ocupacoes. O objetivo do estudo foi georreferenciar as propriedades rurais, analisando as ocupacoes irregulares e todos os pontos de degradacao no acude marcela-SE. O trabalho foi realizado no entorno do acude Marcela-SE, por meio de ortofotocartas, dados vetoriais do Atlas Digital de Recursos Hidricos de Sergipe e do uso do GPS TRIMBLE modelo PRO-XR para o georreferenciamento das propriedades em campo, e dos pontos de degradacao ambiental, sendo os dados trabalhados no Quantum GIS 2.2.0. Foi observado um total de 53 imoveis rurais, sendo 07 lotes de ocupacao irregular e 40 que ocupam a area de preservacao permanente, a qual se encontra ausente de vegetacao nativa. Constatou-se ainda, pontos de descarte in natura de efluentes, sistema de tratamento de efluentes sem funcionamento, areas com armazenamento de argila e descarte de agrotoxicos. O uso das geotecnologias permitiu o georreferenciamento dos imoveis rurais e dos pontos de degradacao ambiental, podendo ser utilizadas no planejamento territorial e no monitoramento da qualidade ambiental do acude Marcela.","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127879267","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}
R. Albuquerque, João Rodrigues Tavares Júnior, A. Candeias
{"title":"Integração de Parâmetros Ambientais em Imagens Multifontes","authors":"R. Albuquerque, João Rodrigues Tavares Júnior, A. Candeias","doi":"10.29150/JHRS.V11.1.P32-50","DOIUrl":"https://doi.org/10.29150/JHRS.V11.1.P32-50","url":null,"abstract":"O Sensoriamento Remoto (SR) passou a ser largamente utilizado ao longo das ultimas decadas pelo rapido desenvolvimento tecnologico de sensores imageadores multifontes, alem de inovadores conceitos tecnologicos para o desenvolvimento de modelos e metodos que possa explorar e avaliar novas formas de aquisicao de dados espaciais. Nesse contexto, este trabalho tem como objetivo investigar dados LiDAR integrados a imagens orbitais multiespectrais do CBERS-4 para avaliacao de um novo indice com base em parâmetros ambientais. Paras isso, foram analisadas o uso integrado de dados LiDAR em imagens do CBERS-4 usando fatiamento por altitudes com os indices fisicos NDVI, NDWI e NDBI e o desenvolvimento de um novo indice para melhor aplicacao da legislacao ambiental. Como resultado, a acuracia da classificacao supervisionada do uso e ocupacao do solo pelo coeficiente Kappa apontou Boa Qualidade, e o indice de Exatidao Global (EG) indicou 100% de separabilidade dos alvos para as imagens dos periodos (29-08-2019 e 22-01-2015). No desenvolvimento do novo indice ambiental, a formula matematica baseada nos indices fisicos NDVI e NDBI, pelo criterio tentativa e erro de intervalo entre -1 a +1 que atendeu as necessidades de integracao foi o valor zero (0), em escala logaritmica log10. Como conclusao, os resultados confirmam que e possivel, usando fatiamento por altitudes com os indices fisicos NDVI e NDBI para analisar o uso integrado de dados LiDAR 3D em imagens multiespectrais orbitais CBERS-4 a criacao de um novo indice fisico ambiental .","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124528655","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}
C. K. Borges, R. G. Carneiro, Cleber Assis dos Santos, C. A. D. Dos Santos
{"title":"Obtaining the daily actual evapotranspiration through remote sensing techniques application in Brazilian Semiarid","authors":"C. K. Borges, R. G. Carneiro, Cleber Assis dos Santos, C. A. D. Dos Santos","doi":"10.29150/JHRS.V11.1.P18-31","DOIUrl":"https://doi.org/10.29150/JHRS.V11.1.P18-31","url":null,"abstract":"Large volumes of water are released to the atmosphere through evaporation from soil and transpiration from vegetation, constituting evapotranspiration (ET). Estimating the water consumption in vegetated areas is important for the management and rational use of this resource. For this study were processed orbital images which correspond to Quixeré-CE, with interest at the Frutacor Farm, where there is predominance the banana crop. The main objective of this study was to assess the accuracy and applicability of S-SEBI and SSEB algorithms with regard to SEBAL to estimate the actual daily evapotranspiration ETa) of a semi-arid region of Northeast Brazil, containing areas of banana orchard, native vegetation (caatinga) and bare soil. S-SEBI. The SSEB and SSEB algorithms showed strong correlation (r > 0.93) with statistical significance of 5%. The S-SEBI exhibited errors less than 12% in the orchard and caatinga and SSEB exhibited greater errors at 22%, though for the bare soil, both models showed large discrepancies when compared with SEBAL, with errors greater than 36%. Therefore, among the two algorithms compared with SEBAL, S-SEBI had a better performance in ETa estimation with lower deviations.","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114138628","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":"Estimation of surface temperature with images obtained with drones","authors":"J. Galvíncio","doi":"10.29150/jhrs.v9.6.p397-406","DOIUrl":"https://doi.org/10.29150/jhrs.v9.6.p397-406","url":null,"abstract":"Every day has increased and diversified the problems related to environmental issues causing serious social impacts, one of them is the increase in global temperature. Thus, studying the spatial and temporal variation of temperature becomes increasingly important. Spatial and temporal temperature information is quite scarce because generally monitoring meteorological data is precipitation. With the new technology’s methodologies have been developed to estimate the surface temperature. Thus, the aim of this study was to use drone images to estimate surface temperature and preliminary verify its accuracy. The results showed that the results are very promising since the estimates when compared with observed data were above 90% of success. It is concluded that it is possible to obtain accurate estimate of surface temperature with drone images.Keywords: climate change, radiometer calibration, environmental analysis.","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134205990","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}
Rayanna Barroso de Oliveira Alves, Hernández Silva, José Coelho de Araújo Filho, Marco A. O. Domingues, J. Albuquerque
{"title":"Use of Vegetation Cover Index (ICV) to Identify Susceptible Areas to Desertification Process in the Municipalities of Betânia, Floresta and Itacuruba, Pernambuco, Brazil","authors":"Rayanna Barroso de Oliveira Alves, Hernández Silva, José Coelho de Araújo Filho, Marco A. O. Domingues, J. Albuquerque","doi":"10.29150/jhrs.v9.6.p343-352","DOIUrl":"https://doi.org/10.29150/jhrs.v9.6.p343-352","url":null,"abstract":"Climate change in Brazil has led to an increase in temperature and changes in the distribution of climatic extremes, such as droughts, droughts, floods and floods. This is potentialized when it comes to the semi-arid Northeast. Environmental studies related to this theme are in constant development. For this, the geotechnologies are of great importance for the environmental studies, since they allow the acquisition and analysis of information of use of the ground, vegetal cover and phenomena of the nature. In the present work, the Vegetation Cover Index was studied using remote sensing and geoprocessing techniques through the digital processing of images acquired in the years 2000 to 2015 of the LANDSAT satellites of three municipalities of Pernambuco to observe the vegetation cover in the said temporal space with the degraded areas possibly resulting from the desertification process in the region. Thus, it was found that the municipalities of Betânia and Itacuruba have very high vulnerability (0.75 and 1, respectively). On the other hand, the municipality of Floresta presented a high vulnerability of ICV (0.5), as the vegetation deficit influences hydrological dynamics, soil protection, climatic stability and thermal influence, corroborating the desertification process.","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132836098","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}
Gabriel Siqueira Tavares Fernandes, P. M. O. Lopes, Vynicius Barbosa de Oliveira, Douglas Alberto de Oliveira Silva
{"title":"Balanço de energia via sensoriamento remoto em fragmentos de Caatinga no Sul do Piauí","authors":"Gabriel Siqueira Tavares Fernandes, P. M. O. Lopes, Vynicius Barbosa de Oliveira, Douglas Alberto de Oliveira Silva","doi":"10.29150/JHRS.V9.3.P131-137","DOIUrl":"https://doi.org/10.29150/JHRS.V9.3.P131-137","url":null,"abstract":"O entendimento da complexidade da dinâmica de trocas de calor entre a vegetacao e a atmosfera e crucial para estudos meteorologicos, tendo em vista que a alteracao nos fluxos de superficie pode ocasionar uma modificacao climatica. Dessa forma, objetivou-se caracterizar e quantificar os componentes do balanco de energia, bem como, verificar se a heterogeneidade da Caatinga possui influencia no mesmo, a partir das fracoes distintas, no municipio de Bom Jesus, Piaui. O municipio integra a regiao do Semiarido Piauiense, possuindo clima quente e umido (Awa), as parcelas da vegetacao sao caracterizadas como Caatinga Arborea (CAbo), Caatinga Arbustiva (CAbu) e Caatinga Arboreo-Arbustiva (CAb). As imagens utilizadas sao provenientes dos sensores OLI ( Operational Land Imager ) e TIRS ( Thermal Infrared Sensor ) os quais estao a bordo do Landsat 8. O processamento das imagens que consistiu na conversao dos dados de numeros digitais para radiância espectral; obtencao da refletância, dos indices de vegetacao e dos componentes do balanco de radiacao, de energia, foi realizado a partir do algoritmo SEBAL. A fim de verificar a relacao existente entre as fracoes da vegetacao (NDVI) e os componentes biofisicos obtidos do SEBAL, realizou-se analise de regressao entre as variaveis. Entre as areas avaliadas, encontrou-se diferenca na distribuicao da energia disponivel a superficie (Rn) para cada componente biofisico do balanco de energia, bem como, em caracteristicas da vegetacao (albedo e NDVI). Quanto a relacao existente entre a vegetacao peculiar de cada fragmento e os componentes do balanco de energia, se obtiveram relacoes distintas de acordo com cada fracao, com relacoes diretamente proporcionais para o Rn, LE e inversamente para H e G. A Caatinga, com a alta diversidade de sua flora, apresenta processos biofisicos complexos na sua relacao com a atmosfera, no que diz respeito as trocas de energia.","PeriodicalId":332244,"journal":{"name":"Journal of Hyperspectral Remote Sensing","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131842708","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}