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Evaluation of forest fire on Madeira Island using Sentinel-2A MSI imagery / Gabriel Navarro in International journal of applied Earth observation and geoinformation, vol 58 (June 2017)  

Public [article]  inInternational journal of applied Earth observation and geoinformation > vol 58 (June 2017) . - pp 97 - 106 Titre : Evaluation of forest fire on Madeira Island using Sentinel-2A MSI imagery Type de document : Article/Communication Auteurs : Gabriel Navarro, Auteur ; Isabel Caballero, Auteur ; Gustavo Silva, Auteur ; Pedro-Cecilio Parra, Auteur ; Águeda Vázquez, Auteur ; Rui Caldeira, Auteur Année de publication : 2017 Article en page(s) : pp 97 - 106 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] correction atmosphérique [Termes IGN] image Sentinel-MSI [Termes IGN] incendie de forêt [Termes IGN] indice de végétation [Termes IGN] Madère, île de [Termes IGN] signature spectrale [Termes IGN] surveillance de la végétation Résumé : (auteur) A forest fire started on August 8th, 2016 in several places on Madeira Island causing damage and casualties. As of August 10th the local media had reported the death of three people, over 200 people injured, over 950 habitants evacuated, and 50 houses damaged. This study presents the preliminary results of the assessment of several spectral indices to evaluate the burn severity of Madeira fires during August 2016. These spectral indices were calculated using the new European satellite Sentinel-2A launched in June 2015. The study confirmed the advantages of several spectral indices such as Normalized Difference Vegetation Index (NDVI), Green Normalized Difference Vegetation Index (GNDVI), Normalized Burn Ratio (NBR) and Normalized Difference Vegetation Index (NDVIreXn) using red-edge spectral bands to assess the post-fire conditions. Results showed high correlation between NDVI, GNDVI, NBR and NDVIre1n spectral indices and the analysis performed by Copernicus Emergency Management Service (EMSR175), considered as the reference truth. Regarding the red-edge spectral indices, the NDVIre1n (using band B5, 705 nm) presented better results compared with B6 (740 nm) and B7 (783 nm) bands. These preliminary results allow us to assume that Sentinel-2 will be a valuable tool for post-fire monitoring. In the future, the two twin Sentinel-2 satellites will offer global coverage of the Madeira Archipelago every five days, therefore allowing the simultaneous study of the evolution of the burnt area and reforestation information with high spatial (up to 10 m) and temporal resolution (5 days). Numéro de notice : A2017-366 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.jag.2017.02.003 En ligne : https://doi.org/10.1016/j.jag.2017.02.003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85794 [article]

Evacuating remote areas: team linkage via GIS and satellite telecom / B. Palade in GIM international, vol 23 n° 12 (December 2009)

Public [article]  inGIM international > vol 23 n° 12 (December 2009) . - pp 36 - 37 Titre : Evacuating remote areas: team linkage via GIS and satellite telecom Type de document : Article/Communication Auteurs : B. Palade, Auteur ; Paola Soares, Auteur ; A. De La Cruz, Auteur Année de publication : 2009 Article en page(s) : pp 36 - 37 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] acquisition de données [Termes IGN] ArcGIS Server [Termes IGN] cartographie thématique [Termes IGN] Copernicus (programme européen) [Termes IGN] diffusion de l'information [Termes IGN] données localisées numériques [Termes IGN] gestion de crise [Termes IGN] image aérienne [Termes IGN] image SPOT 5 [Termes IGN] Madère, archipel de [Termes IGN] réseau de transport [Termes IGN] système d'information géographique [Termes IGN] télécommunication spatiale [Termes IGN] Union Européenne Résumé : (Auteur) Civilian evacuation operations generally take place in remote areas where normal communication networks are often either destroyed, limited or controlled by unfriendly parties. Portable satellite telecommunications can link teams co-ordinating an evacuation. This article describes an exercice in rapid delivery of geospatial data by satellite telecommunications which enhanced the security of operations. GIS technology and high-resolution satellite imagery were integrated in a complete "evacuation GIS" complying with NATO standards. Copyright GEOinformatics Numéro de notice : A2009-468 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30097 [article]

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