Sökning: "wildfire"

Visar resultat 1 - 5 av 43 uppsatser innehållade ordet wildfire.

  1. 1. Investigation of Emission Source Heights in FLEXPART 10.02 for the Wildfire in Pedrógão Grande, Portugal, 2017

    Master-uppsats, Uppsala universitet/Luft-, vatten och landskapslära

    Författare :Anton Nygren; [2019]
    Nyckelord :wildfire; Pedrógão Grande; structural similarity; SSIM; FLEXPART; MERRA2; CO; emission source height; skogsbränder; Pedrógão Grande; strukturell likhet; SSIM; FLEXPART; MERRA2; CO; utsläppshöjd;

    Sammanfattning : One of the worst wildfires in Portugal in 2017 on June17- 21 started at the central part of Pedrógão Grande and spread fast to the surrounding areas Góis, Pampilhosa da Serra and Arganil. The wildfire took 64 lives and a large smoke plume was observed. LÄS MER

  2. 2. GIS-based crisis communication : A platform for authorities to communicate with the public during wildfire

    Master-uppsats, KTH/Geoinformatik; KTH/Geoinformatik

    Författare :Felix Althén Bergman; Evelina Östblom; [2019]
    Nyckelord :GIS; crisis communication; forest fire; Google Earth Engine; data management;

    Sammanfattning : Today, people are used to having technology as a constant aid. This also sets expectations that information should always be available. LÄS MER

  3. 3. Classification of post-wildfire aerial imagery using convolutional neural networks : A study of machine learning and resampling techniques to assist post-wildfire efforts

    Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Gustave Rousselet; [2019]
    Nyckelord :;

    Sammanfattning : Assessment of post-wildfire damages to human structures is a manual task which currently uses ground-level observations of the structures by a human inspector to classify the burn severity of the affected structure. This study investigated the potential of using machine learning and specifically computer vision techniques in order to produce a classification of burn severity using post-wildfire aerial imagery. LÄS MER

  4. 4. Damage Assessment of the 2018 Swedish Forest Fires Using Sentinel-2 and Pleiades Data

    Kandidat-uppsats, KTH/Geoinformatik; KTH/Geoinformatik

    Författare :Patrik Grenert; Linus Bäckström; [2019]
    Nyckelord :Damage Assessment; Sentinel-2; Pleiades; Forest Fire dNBR classification; Supervised image classificaiton; Sweden; 2018; Trängslet; Lillhärdal 2018;

    Sammanfattning : When a devastating event such as a forest fire occurs, multiple actions have to be taken. The first priority is to ensure people's safety during the fire, then the fire has to be kept under control and finally extinguished. After all of this, what remains is a damaged area in the forest. LÄS MER

  5. 5. Effects of Wildfire Burn on Permafrost Landcover and Catchment Hydrology in Manitoba, Canada

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Andreas Andersson; [2019]
    Nyckelord :wildfire; permafrost; catchment hydrology;

    Sammanfattning : Permafrost is a strongly controlling factor on Arctic hydrology due to its effect on ground permeability, and thus surface and ground water flow paths. As wildfires are increasing in occurrence and magnitude in permafrost regions, they may alter the hydrological regime via permafrost thaw and degradation that increases ground permeability. LÄS MER