Densité des foyers d'incendie dans les délégations de Nefza, Ain Draham et Tabarka, Gouvernorat de Jendouba le 25 juillet 2023

Name: Densité des foyers d'incendie dans les délégations de Nefza, Ain Draham et Tabarka, Gouvernorat de Jendouba le 25 juillet 2023
Creator: United Nations Satellite Centre (UNOSAT)
License: http://www.opendefinition.org/licenses/cc-by-sa

✦ DISCOVERED BY ORIONAIUnited Nations Satellite Centre (UNOSAT)EnvironmentTunisia

Tunisia

About this dataset

**UNOSAT code FR20230725TUN, GDACS Id: 1015980** Cette carte illustre la densité des foyers d'incendie détectés à partir des données VIIRS acquises le 25 juillet 2023. La délégation de Tabarka compte un nombre total de 45 foyers d'incendie. En se basant sur les données démographiques Worldpop, environ 2,200 personnes dans le gouvernorat de Jendouba vivent à proximité des foyers d'incendie, dont 1,900 dans la délégation de Tabarka. Ceci est une analyse préliminaire et n'a pas encore été validée sur le terrain. Ne pas hésiter à envoyer vos commentaires au Centre Satellitaire des Nations Unies (UNOSAT).

Documentation

UNOSAT datasets and maps are produced using a variety of methods. In general, analysts closely review satellite imagery, often comparing two or more images together, and determine notable changes between the images. For damage assessments, refugee or IDP assessments, and similar analyses, these changes are then manually documented in the vector data by the analyst. For flood extractions, landcover mapping and similar analyses, a variety of automated remote sensing techniques are used to extract the relevant information which is then reviewed and revised as necessary by the analyst. In all cases, resulting data is then loaded into a standardized UNOSAT geodatabase and exported asshapefiles for dissemination. This is a preliminary assessment and has not yet been validated in the field. It is important to consider the characteristics of the source imagery used in the analyses when interpreting results. For damage assessments it should be noted that only significant damage to the structural integrity of the buildings analyzed can be seen in imagery, while minor damage such as cracks or holes may not be visible at all. For flood extractions using radar data it is important to note that urban areas and highly vegetated areas may mask the flood signature and result in underestimation of flood waters. Users with specific questions or concerns should contact unosat@unitar.org to seek clarification.

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Wildfires in Tabarka delegation, Jendouba Governorate and El Krib delegation, Siliana Governorate as of 27 July 2023

**UNOSAT code FR20230725TUN, GDACS Id: 1015980** This map illustrates satellite-detected burned areas in Tabarka delegation, Jendouba Governorate and El Krib delegation, Siliana Governorate, Tunisia based on a Sentinel-2 image aquired on 27 July 2023 at 10:20 UTC. Within the analysed area of about 2,800 km², about 29 km² of lands appear to be potentially burned. Based on Worldpop population data and the burned area extent about 7,700 people are potentially exposed or living close to burned areas. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).