Full text

Turn on search term navigation

© 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the "License"). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Following an unprecedented drought, Australia's 2019/2020 “Black Summer” fire season caused severe damage, gravely impacting both humans and ecosystems, and increasing susceptibility to other hazards. Heavy precipitation in early 2020 led to flooding and runoff that entrained ash and soil in burned areas, increasing sediment concentration in rivers, and reducing water quality. We exemplify this hazard cascade in a catchment in New South Wales by mapping burn severity, flood, and rainfall recurrence; estimating changes in soil erosion; and comparing them with river turbidity data. We show that following the extreme drought and wildfires, even moderate rain and floods led to undue increases in soil erosion and reductions in water quality. While natural risk analysis and planning commonly focuses on a single hazard, we emphasize the need to consider the entire hazard cascade, and highlight the impacts of ongoing climate change beyond its direct effect on wildfires.

Details

Title
Cascading Hazards in the Aftermath of Australia's 2019/2020 Black Summer Wildfires
Author
Kemter, M. 1   VIAFID ORCID Logo  ; Fischer, M. 2 ; Luna, L. V. 3   VIAFID ORCID Logo  ; Schönfeldt, E. 4   VIAFID ORCID Logo  ; Vogel, J. 5   VIAFID ORCID Logo  ; Banerjee, A. 3 ; Korup, O. 2   VIAFID ORCID Logo  ; Thonicke, K. 6   VIAFID ORCID Logo 

 Institute of Environmental Science and Geography, University of Potsdam, Potsdam, Germany, Potsdam Institute for Climate Impact Research, Potsdam, Germany, Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany 
 Institute of Environmental Science and Geography, University of Potsdam, Potsdam, Germany 
 Institute of Environmental Science and Geography, University of Potsdam, Potsdam, Germany, Potsdam Institute for Climate Impact Research, Potsdam, Germany 
 Institute of Geosciences, University of Potsdam, Potsdam, Germany 
 Institute of Environmental Science and Geography, University of Potsdam, Potsdam, Germany, Institute of Ecology, Technical University of Berlin, Berlin, Germany 
 Potsdam Institute for Climate Impact Research, Potsdam, Germany 
Section
Commentary
Publication year
2021
Publication date
Mar 1, 2021
Publisher
John Wiley & Sons, Inc.
e-ISSN
23284277
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2554369746
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the "License"). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.