The footprint of Alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing
Recent large and frequent fires above the Alaskan arctic circle have forced a reassessment of the ecological and climatological importance of fire in arctic tundra ecosystems. Here we provide a general overview of the occurrence, distribution, and ecological and climate implications of Alaskan tundr...
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Online Access: | https://doi.org/10.1088/1748-9326/7/4/044039 https://doaj.org/article/f5b72ed072ff483d81f7ad4b9e89c61e |
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ftdoajarticles:oai:doaj.org/article:f5b72ed072ff483d81f7ad4b9e89c61e 2023-09-05T13:11:28+02:00 The footprint of Alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing Adrian V Rocha Michael M Loranty Phil E Higuera Michelle C Mack Feng Sheng Hu Benjamin M Jones Amy L Breen Edward B Rastetter Scott J Goetz Gus R Shaver 2012-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/7/4/044039 https://doaj.org/article/f5b72ed072ff483d81f7ad4b9e89c61e EN eng IOP Publishing https://doi.org/10.1088/1748-9326/7/4/044039 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/7/4/044039 1748-9326 https://doaj.org/article/f5b72ed072ff483d81f7ad4b9e89c61e Environmental Research Letters, Vol 7, Iss 4, p 044039 (2012) tundra fire radiative forcing albedo EVI climate change Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2012 ftdoajarticles https://doi.org/10.1088/1748-9326/7/4/044039 2023-08-13T00:37:44Z Recent large and frequent fires above the Alaskan arctic circle have forced a reassessment of the ecological and climatological importance of fire in arctic tundra ecosystems. Here we provide a general overview of the occurrence, distribution, and ecological and climate implications of Alaskan tundra fires over the past half-century using spatially explicit climate, fire, vegetation and remote sensing datasets for Alaska. Our analyses highlight the importance of vegetation biomass and environmental conditions in regulating tundra burning, and demonstrate that most tundra ecosystems are susceptible to burn, providing the environmental conditions are right. Over the past two decades, fire perimeters above the arctic circle have increased in size and importance, especially on the North Slope, indicating that future wildfire projections should account for fire regime changes in these regions. Remote sensing data and a literature review of thaw depths indicate that tundra fires have both positive and negative implications for climatic feedbacks including a decadal increase in albedo radiative forcing immediately after a fire, a stimulation of surface greenness and a persistent long-term (>10 year) increase in thaw depth. In order to address the future impact of tundra fires on climate, a better understanding of the control of tundra fire occurrence as well as the long-term impacts on ecosystem carbon cycling will be required. Article in Journal/Newspaper albedo Arctic Climate change north slope Tundra Alaska Directory of Open Access Journals: DOAJ Articles Arctic Environmental Research Letters 7 4 044039 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
tundra fire radiative forcing albedo EVI climate change Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
tundra fire radiative forcing albedo EVI climate change Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Adrian V Rocha Michael M Loranty Phil E Higuera Michelle C Mack Feng Sheng Hu Benjamin M Jones Amy L Breen Edward B Rastetter Scott J Goetz Gus R Shaver The footprint of Alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing |
topic_facet |
tundra fire radiative forcing albedo EVI climate change Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Recent large and frequent fires above the Alaskan arctic circle have forced a reassessment of the ecological and climatological importance of fire in arctic tundra ecosystems. Here we provide a general overview of the occurrence, distribution, and ecological and climate implications of Alaskan tundra fires over the past half-century using spatially explicit climate, fire, vegetation and remote sensing datasets for Alaska. Our analyses highlight the importance of vegetation biomass and environmental conditions in regulating tundra burning, and demonstrate that most tundra ecosystems are susceptible to burn, providing the environmental conditions are right. Over the past two decades, fire perimeters above the arctic circle have increased in size and importance, especially on the North Slope, indicating that future wildfire projections should account for fire regime changes in these regions. Remote sensing data and a literature review of thaw depths indicate that tundra fires have both positive and negative implications for climatic feedbacks including a decadal increase in albedo radiative forcing immediately after a fire, a stimulation of surface greenness and a persistent long-term (>10 year) increase in thaw depth. In order to address the future impact of tundra fires on climate, a better understanding of the control of tundra fire occurrence as well as the long-term impacts on ecosystem carbon cycling will be required. |
format |
Article in Journal/Newspaper |
author |
Adrian V Rocha Michael M Loranty Phil E Higuera Michelle C Mack Feng Sheng Hu Benjamin M Jones Amy L Breen Edward B Rastetter Scott J Goetz Gus R Shaver |
author_facet |
Adrian V Rocha Michael M Loranty Phil E Higuera Michelle C Mack Feng Sheng Hu Benjamin M Jones Amy L Breen Edward B Rastetter Scott J Goetz Gus R Shaver |
author_sort |
Adrian V Rocha |
title |
The footprint of Alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing |
title_short |
The footprint of Alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing |
title_full |
The footprint of Alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing |
title_fullStr |
The footprint of Alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing |
title_full_unstemmed |
The footprint of Alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing |
title_sort |
footprint of alaskan tundra fires during the past half-century: implications for surface properties and radiative forcing |
publisher |
IOP Publishing |
publishDate |
2012 |
url |
https://doi.org/10.1088/1748-9326/7/4/044039 https://doaj.org/article/f5b72ed072ff483d81f7ad4b9e89c61e |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic Climate change north slope Tundra Alaska |
genre_facet |
albedo Arctic Climate change north slope Tundra Alaska |
op_source |
Environmental Research Letters, Vol 7, Iss 4, p 044039 (2012) |
op_relation |
https://doi.org/10.1088/1748-9326/7/4/044039 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/7/4/044039 1748-9326 https://doaj.org/article/f5b72ed072ff483d81f7ad4b9e89c61e |
op_doi |
https://doi.org/10.1088/1748-9326/7/4/044039 |
container_title |
Environmental Research Letters |
container_volume |
7 |
container_issue |
4 |
container_start_page |
044039 |
_version_ |
1776204836916690944 |