Sökning: "wildfires"

Visar resultat 1 - 5 av 15 avhandlingar innehållade ordet wildfires.

  1. 1. Resistance and recolonization of bryophyte assemblages following disturbances : - detecting patterns and exploring mechanisms

    Författare :Martin Schmalholz; Kristoffer Hylander; Jari Kouki; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bryophytes; boreal forest; boulders; clear-cutting; disturbance; establishment; insect outbreaks; microtopography; recolonization; resistance; spatial heterogeneity; succession; wildfires; Biology; Biologi; Plant Ecology; växtekologi;

    Sammanfattning : Disturbances are ubiquitous features of most northern forest ecosystems. The subsequent response of plant assemblages on both short (resistance or not) and long term (recolonization or not) will depend on a number of factors operating at several spatial scales. LÄS MER

  3. 2. Deep Learning for Active Fire Detection Using Multi-Source Satellite Image Time Series

    Författare :Yu Zhao; Yifang Ban; Andrea Nascetti; Josephine Sullivan; Cartalis Constantinos; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wildfire; Remote Sensing; Active Fire Detection; GOES-R ABI; Suomi-NPP VIIRS; Image Segmentation; Deep Learning; Gated Recurrent Units GRU ; Transformer.; Vilda Bränder; Fjärranalys; Aktiv Branddetektering; GOES- R ABI; Suomi-NPP VIIRS; Bildsegmentering; Djupinlärning; Gated Recurrent Units GRU ; Transformer; Geoinformatik; Geoinformatics;

    Sammanfattning : In recent years, climate change and human activities have caused increas- ing numbers of wildfires. Earth observation data with various spatial and temporal resolutions have shown great potential in detecting and monitoring wildfires. LÄS MER

  4. 3. Decision Support for Emergency Response to Multiple Natural Hazards : CHALLENGES AND NEEDS

    Författare :Viktor Sköld Gustafsson; Tobias Andersson Granberg; Mattias Hjerpe; Martin Waldemarsson; Margaret Mcnamee; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Global warming exceeding 1.5°C above pre-industrial levels will very likely lead to unavoidable increases of several climate hazards in the coming decades. Climate change phenomena can increase the risk of several extreme weather events, leading to risks of what is commonly considered as natural hazards, for instance landslides and forest fires. LÄS MER

  5. 4. The Imperative of Crisis : Power, Knowledge and Action in the Swedish Crisis Management System

    Författare :Maja Svenbro; Avdelningen för Riskhantering och Samhällssäkerhet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Sweden; crisis management; power; representations; imperative; crisis management; Sweden; power; representations; imperative;

    Sammanfattning : This thesis investigates Swedish crisis management. This thesis aims to contribute to crisis research by providing critical perspectives on the role of knowledge in crisis management settings. LÄS MER

  7. 5. Decadal effects of forest fire on biodiversity and browsing : a comparison between wildfire and prescribed burning

    Författare :Emelie Fredriksson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The role of fire as a natural disturbance in northern European boreal ecosystems has largely disappeared due to effective fire suppression with large consequences for fire-associated biodiversity. Recently, prescribed burns have been introduced as a conservation action that aims to promote biodiversity. LÄS MER