Increasing exposure of energy infrastructure to compound hazards: cascading wildfires and extreme rainfall

Floods and debris flows pose a significant threat, especially when extreme rain falls over burned areas. This is an example of a compound event in which two concurrent or consecutive events lead to extreme societal impacts. Compound and cascading hazards are becoming increasingly important and have...

Full description

Bibliographic Details
Main Authors: Hamed Moftakhari, Amir AghaKouchak
Format: Article
Language:English
Published: IOP Publishing 2019-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/ab41a6
_version_ 1797747908699750400
author Hamed Moftakhari
Amir AghaKouchak
author_facet Hamed Moftakhari
Amir AghaKouchak
author_sort Hamed Moftakhari
collection DOAJ
description Floods and debris flows pose a significant threat, especially when extreme rain falls over burned areas. This is an example of a compound event in which two concurrent or consecutive events lead to extreme societal impacts. Compound and cascading hazards are becoming increasingly important and have notable impacts on threatened communities across the world. Wildfire followed by an intense precipitation event can result in a large flood under which the combined impacts of hazard drivers are much more intense than those from individual drivers. Here, we first quantify the change in exposure of natural gas infrastructure to individual hazards, wildfire and floods in the future relative to past. We, then quantify the compound hazards as coincidence likelihood of intense rain over burned areas and analyze the spatial patterns across the State of California, USA. Our results show that not only the exposure of natural gas infrastructure to individual hazards would be higher, the likelihood of compound hazards is expected to increase substantially in a warming climate.
first_indexed 2024-03-12T15:57:22Z
format Article
id doaj.art-1720fd20bd504db6922c6499b4e0939a
institution Directory Open Access Journal
issn 1748-9326
language English
last_indexed 2024-03-12T15:57:22Z
publishDate 2019-01-01
publisher IOP Publishing
record_format Article
series Environmental Research Letters
spelling doaj.art-1720fd20bd504db6922c6499b4e0939a2023-08-09T14:46:08ZengIOP PublishingEnvironmental Research Letters1748-93262019-01-01141010401810.1088/1748-9326/ab41a6Increasing exposure of energy infrastructure to compound hazards: cascading wildfires and extreme rainfallHamed Moftakhari0https://orcid.org/0000-0003-3170-8653Amir AghaKouchak1University of California , Irvine, United States of America; The University of Alabama, United States of AmericaUniversity of California , Irvine, United States of AmericaFloods and debris flows pose a significant threat, especially when extreme rain falls over burned areas. This is an example of a compound event in which two concurrent or consecutive events lead to extreme societal impacts. Compound and cascading hazards are becoming increasingly important and have notable impacts on threatened communities across the world. Wildfire followed by an intense precipitation event can result in a large flood under which the combined impacts of hazard drivers are much more intense than those from individual drivers. Here, we first quantify the change in exposure of natural gas infrastructure to individual hazards, wildfire and floods in the future relative to past. We, then quantify the compound hazards as coincidence likelihood of intense rain over burned areas and analyze the spatial patterns across the State of California, USA. Our results show that not only the exposure of natural gas infrastructure to individual hazards would be higher, the likelihood of compound hazards is expected to increase substantially in a warming climate.https://doi.org/10.1088/1748-9326/ab41a6energy infrastructureclimate changenatural hazardsenergy security
spellingShingle Hamed Moftakhari
Amir AghaKouchak
Increasing exposure of energy infrastructure to compound hazards: cascading wildfires and extreme rainfall
Environmental Research Letters
energy infrastructure
climate change
natural hazards
energy security
title Increasing exposure of energy infrastructure to compound hazards: cascading wildfires and extreme rainfall
title_full Increasing exposure of energy infrastructure to compound hazards: cascading wildfires and extreme rainfall
title_fullStr Increasing exposure of energy infrastructure to compound hazards: cascading wildfires and extreme rainfall
title_full_unstemmed Increasing exposure of energy infrastructure to compound hazards: cascading wildfires and extreme rainfall
title_short Increasing exposure of energy infrastructure to compound hazards: cascading wildfires and extreme rainfall
title_sort increasing exposure of energy infrastructure to compound hazards cascading wildfires and extreme rainfall
topic energy infrastructure
climate change
natural hazards
energy security
url https://doi.org/10.1088/1748-9326/ab41a6
work_keys_str_mv AT hamedmoftakhari increasingexposureofenergyinfrastructuretocompoundhazardscascadingwildfiresandextremerainfall
AT amiraghakouchak increasingexposureofenergyinfrastructuretocompoundhazardscascadingwildfiresandextremerainfall