Improving SEVIRI-based hotspots detection by using multiple simultaneous observations

Laneve, Giovanni; Santilli, Giancarlo; Luciani, Roberto

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Campo DC	Valor	Idioma
dc.contributor.author	Laneve, Giovanni	-
dc.contributor.author	Santilli, Giancarlo	-
dc.contributor.author	Luciani, Roberto	-
dc.date.accessioned	2020-10-13T15:14:19Z	-
dc.date.available	2020-10-13T15:14:19Z	-
dc.date.issued	2019	-
dc.identifier.citation	LANEVE, Giovanni; SANTILLI, Giancarlo; LUCIANI, Roberto. Improving SEVIRI-based hotspots detection by using multiple simultaneous observations. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, v. 12, n. 7, 2019. Disponível em: https://ieeexplore.ieee.org/document/8654718.	pt_BR
dc.identifier.uri	https://repositorio.unb.br/handle/10482/39536	-
dc.language.iso	Inglês	pt_BR
dc.publisher	IEEE	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Improving SEVIRI-based hotspots detection by using multiple simultaneous observations	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Satélites artificiais	pt_BR
dc.subject.keyword	Detectores	pt_BR
dc.subject.keyword	Incêndios	pt_BR
dc.relation.publisherversion	https://ieeexplore.ieee.org/document/8654718	pt_BR
dc.description.abstract1	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.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0001-6108-9764	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0001-6259-8384	pt_BR
dc.description.unidade	Faculdade UnB Gama (FGA)	-
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