Atenção: Todas as denúncias são sigilosas e sua identidade será preservada.
Os campos nome e e-mail são de preenchimento opcional
Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.creator | Laneve, Giovanni | - |
Autor(es): dc.creator | Santilli, Giancarlo | - |
Autor(es): dc.creator | Luciani, Roberto | - |
Data de aceite: dc.date.accessioned | 2024-10-23T15:10:07Z | - |
Data de disponibilização: dc.date.available | 2024-10-23T15:10:07Z | - |
Data de envio: dc.date.issued | 2020-10-13 | - |
Data de envio: dc.date.issued | 2020-10-13 | - |
Data de envio: dc.date.issued | 2019 | - |
Fonte completa do material: dc.identifier | https://repositorio.unb.br/handle/10482/39536 | - |
Fonte completa do material: dc.identifier | https://orcid.org/0000-0001-6108-9764 | - |
Fonte completa do material: dc.identifier | https://orcid.org/0000-0001-6259-8384 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/capes/876153 | - |
Descrição: dc.description | Geostationary satellites like meteosat second generation (MSG) allow the detection and monitoring of thermal anomalies (wild fires and volcanic eruptions) with a refresh frequency ranging from 5 to 15 min. Such a frequency meets the requirements of the institutions involved in monitoring and containing the fire events and could provide information on the temporal behavior of the fire (through fire radiative power) and the spatial distribution of the events with the related hazard for the population and infrastructure when more occurrences are simultaneously present. A limitation of the operational applicability of this tool is currently represented by the low spatial resolution of the MSG/SEVIRI sensor ranging from 3 km at the equator to 4.5 km at Mediterranean latitudes. The limitations related to the sensitivity of the geostationary sensor to fire sizes have been, at least in part, overcome by introducing specific algorithms. However, the reduced accuracy in the geographic localization of the fire, which can, in principle, occupy any position in an area of about 16 km 2 (at Mediterranean latitudes), makes this information not very interesting for the institutions involved in firefighting. This paper analyzes the feasibility of improving the localization of the thermal anomalies (hotspots) by combining images acquired simultaneously from different MSG satellites located at different longitudes. In particular, we combine the images acquired by MSG-9 located at long. 9.0°, MSG-10 located at 0.0° and MSG-8 located at long. 41.5°. The results confirm the possibility of improving the accuracy of the detection by exploiting the observation of the events from different positions in space. | - |
Descrição: dc.description | Faculdade UnB Gama (FGA) | - |
Publicador: dc.publisher | IEEE | - |
Relação: dc.relation | https://ieeexplore.ieee.org/document/8654718 | - |
Direitos: dc.rights | Acesso Restrito | - |
Palavras-chave: dc.subject | Satélites artificiais | - |
Palavras-chave: dc.subject | Detectores | - |
Palavras-chave: dc.subject | Incêndios | - |
Título: dc.title | Improving SEVIRI-based hotspots detection by using multiple simultaneous observations | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional – UNB |
O Portal eduCAPES é oferecido ao usuário, condicionado à aceitação dos termos, condições e avisos contidos aqui e sem modificações. A CAPES poderá modificar o conteúdo ou formato deste site ou acabar com a sua operação ou suas ferramentas a seu critério único e sem aviso prévio. Ao acessar este portal, você, usuário pessoa física ou jurídica, se declara compreender e aceitar as condições aqui estabelecidas, da seguinte forma: