6 documents found, page 1 of 1
Towards an Integrated Approach to Wildfire Risk Assessment: When, Where, What a...
Chuvieco, Emilio; Yebra, Marta; Martino, Simone; Thonicke, Kirsten; Gómez-Giménez, Marta; San-Miguel, Jesus; Oom, Duarte; Velea, RamonaThis paper presents a review of concepts related to wildfire risk assessment, including the determination of fire ignition and propagation (fire danger), the extent to which fire may spatially overlap with valued assets (exposure), and the potential losses and resilience to those losses (vulnerability). This is followed by a brief discussion of how these concepts can be integrated and connected to mitigation an...
Current Wildland Fire Patterns and Challenges in Europe: A Synthesis of Nationa...
Fernandez-Anez, Nieves; Krasovskiy, Andrey; Müller, Mortimer; Vacik, Harald; Baetens, Jan; Hukić, Emira; Kapovic Solomun, Marijana; Atanassova, IrenaChanges in climate, land use, and land management impact the occurrence and severity of wildland fires in many parts of the world. This is particularly evident in Europe, where ongoing changes in land use have strongly modified fire patterns over the last decades. Although satellite data by the European Forest Fire Information System provide large-scale wildland fire statistics across European countries, there ...
Current Wildland Fire Patterns and Challenges in Europe: A Synthesis of Nationa...
Fernandez-Anez, Nieves; Krasovskiy, Andrey; Müller, Mortimer; Vacik, Harald; Baetens, Jan; Hukić, Emira; Kapovic Solomun, Marijana; Atanassova, IrenaChanges in climate, land use, and land management impact the occurrence and severity of wildland fires in many parts of the world. This is particularly evident in Europe, where ongoing changes in land use have strongly modified fire patterns over the last decades. Although satellite data by the European Forest Fire Information System provide large-scale wildland fire statistics across European countries, there ...
Burned area mapping in the brazilian savanna using a one-class support vector m...
Pereira, Allan A.; Cardoso Pereira, José Miguel; Libonati, Renata; Oom, Duarte; Setzer, Alberto W.; Morelli, Fabiano; Machado-Silva, FaustoWe used the Visible Infrared Imaging Radiometer Suite (VIIRS) active fire data (375 m spatial resolution) to automatically extract multispectral samples and train a One-Class Support Vector Machine for burned area mapping, and applied the resulting classification algorithm to 300-m spatial resolution imagery from the Project for On-Board Autonomy-Vegetation (PROBA-V). The active fire data were screened to preve...
Religious affiliation modulates weekly cycles of cropland burning in Sub-Sahara...
Pereira, J.M.C.; Oom, Duarte; Pereira, Paula; Turkman, Antónia A.; Turkman, K. FeridunVegetation burning is a common land management practice in Africa, where fire is used for hunting, livestock husbandry, pest control, food gathering, cropland fertilization, and wildfire prevention. Given such strong anthropogenic control of fire, we tested the hypotheses that fire activity displays weekly cycles, and that the week day with the fewest fires depends on regionally predominant religious affiliatio...
Detecção remota de áreas queimadas na Amazónia brasileira
Sousa, Adélia; Pereira, José; Oom, DuarteThe area burned in the brazilian Amazon during June-October 2000 was mapped using SPOT-VGT images. The burned area estimate was calibrated with Landsat TM data. Pareto boundary analysis was used to evaluate the best achievable classification accuracy, for 1.1km and 8km spatial resolution imagery. Finally, we present preliminary results from an analysis of the performance of three active fire products for detect...