2019–2020 Australia Fire and Its Relationship to Hydroclimatological and Vegetation Variabilities

Wildfire is a major concern worldwide and particularly in Australia. The 2019–2020 wildfires in Australia became historically significant as they were widespread and extremely severe. Linking climate and vegetation settings to wildfires can provide insightful information for wildfire prediction, and...

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Main Authors: Mohammad Reza Ehsani, Jorge Arevalo, Christoforus Bayu Risanto, Mostafa Javadian, Charles John Devine, Alireza Arabzadeh, Hector L. Venegas-Quiñones, Ambria Paige Dell’Oro, Ali Behrangi
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/12/11/3067
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author Mohammad Reza Ehsani
Jorge Arevalo
Christoforus Bayu Risanto
Mostafa Javadian
Charles John Devine
Alireza Arabzadeh
Hector L. Venegas-Quiñones
Ambria Paige Dell’Oro
Ali Behrangi
author_facet Mohammad Reza Ehsani
Jorge Arevalo
Christoforus Bayu Risanto
Mostafa Javadian
Charles John Devine
Alireza Arabzadeh
Hector L. Venegas-Quiñones
Ambria Paige Dell’Oro
Ali Behrangi
author_sort Mohammad Reza Ehsani
collection DOAJ
description Wildfire is a major concern worldwide and particularly in Australia. The 2019–2020 wildfires in Australia became historically significant as they were widespread and extremely severe. Linking climate and vegetation settings to wildfires can provide insightful information for wildfire prediction, and help better understand wildfires behavior in the future. The goal of this research was to examine the relationship between the recent wildfires, various hydroclimatological variables, and satellite-retrieved vegetation indices. The analyses performed here show the uniqueness of the 2019–2020 wildfires. The near-surface air temperature from December 2019 to February 2020 was about 1 °C higher than the 20-year mean, which increased the evaporative demand. The lack of precipitation before the wildfires, due to an enhanced high-pressure system over southeast Australia, prevented the soil from having enough moisture to supply the demand, and set the stage for a large amount of dry fuel that highly favored the spread of the fires.
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spelling doaj.art-737ae9874c6b4ba282f90b411739c0eb2023-11-20T19:28:39ZengMDPI AGWater2073-44412020-11-011211306710.3390/w121130672019–2020 Australia Fire and Its Relationship to Hydroclimatological and Vegetation VariabilitiesMohammad Reza Ehsani0Jorge Arevalo1Christoforus Bayu Risanto2Mostafa Javadian3Charles John Devine4Alireza Arabzadeh5Hector L. Venegas-Quiñones6Ambria Paige Dell’Oro7Ali Behrangi8Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USADepartment of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USADepartment of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USADepartment of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USASchool of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721, USADepartment of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USADepartment of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USADepartment of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USADepartment of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USAWildfire is a major concern worldwide and particularly in Australia. The 2019–2020 wildfires in Australia became historically significant as they were widespread and extremely severe. Linking climate and vegetation settings to wildfires can provide insightful information for wildfire prediction, and help better understand wildfires behavior in the future. The goal of this research was to examine the relationship between the recent wildfires, various hydroclimatological variables, and satellite-retrieved vegetation indices. The analyses performed here show the uniqueness of the 2019–2020 wildfires. The near-surface air temperature from December 2019 to February 2020 was about 1 °C higher than the 20-year mean, which increased the evaporative demand. The lack of precipitation before the wildfires, due to an enhanced high-pressure system over southeast Australia, prevented the soil from having enough moisture to supply the demand, and set the stage for a large amount of dry fuel that highly favored the spread of the fires.https://www.mdpi.com/2073-4441/12/11/3067Australia wildfiresextreme eventshydroclimatologyecologyremote sensingclimate change
spellingShingle Mohammad Reza Ehsani
Jorge Arevalo
Christoforus Bayu Risanto
Mostafa Javadian
Charles John Devine
Alireza Arabzadeh
Hector L. Venegas-Quiñones
Ambria Paige Dell’Oro
Ali Behrangi
2019–2020 Australia Fire and Its Relationship to Hydroclimatological and Vegetation Variabilities
Water
Australia wildfires
extreme events
hydroclimatology
ecology
remote sensing
climate change
title 2019–2020 Australia Fire and Its Relationship to Hydroclimatological and Vegetation Variabilities
title_full 2019–2020 Australia Fire and Its Relationship to Hydroclimatological and Vegetation Variabilities
title_fullStr 2019–2020 Australia Fire and Its Relationship to Hydroclimatological and Vegetation Variabilities
title_full_unstemmed 2019–2020 Australia Fire and Its Relationship to Hydroclimatological and Vegetation Variabilities
title_short 2019–2020 Australia Fire and Its Relationship to Hydroclimatological and Vegetation Variabilities
title_sort 2019 2020 australia fire and its relationship to hydroclimatological and vegetation variabilities
topic Australia wildfires
extreme events
hydroclimatology
ecology
remote sensing
climate change
url https://www.mdpi.com/2073-4441/12/11/3067
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