Multiple Ecosystem Effects of Extreme Weather Events in the Arctic
The Arctic is getting warmer and wetter. Here, we document two independent examples of how associated extreme precipitation patterns have severe implications for high Arctic ecosystems. The events stand out in a 23-year record of continuous observations of a wide range of ecosystem parameters and ac...
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Language: | English |
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2021
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Online Access: | https://pure.au.dk/portal/en/publications/ec7ffb80-4305-4915-9282-8bc560b266f3 https://doi.org/10.1007/s10021-020-00507-6 https://pure.au.dk/ws/files/285132343/s10021_020_00507_6.pdf |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/ec7ffb80-4305-4915-9282-8bc560b266f3 2024-06-23T07:48:37+00:00 Multiple Ecosystem Effects of Extreme Weather Events in the Arctic Christensen, T. R. Lund, M. Skov, K. Abermann, J. Lopez-Blanco, E. Scheller, J. Scheel, M. Jackowicz-Korczynski, M. Langley, K. Murphy, M. J. Mastepanov, M. 2021-01 application/pdf https://pure.au.dk/portal/en/publications/ec7ffb80-4305-4915-9282-8bc560b266f3 https://doi.org/10.1007/s10021-020-00507-6 https://pure.au.dk/ws/files/285132343/s10021_020_00507_6.pdf eng eng https://pure.au.dk/portal/en/publications/ec7ffb80-4305-4915-9282-8bc560b266f3 info:eu-repo/semantics/openAccess Christensen , T R , Lund , M , Skov , K , Abermann , J , Lopez-Blanco , E , Scheller , J , Scheel , M , Jackowicz-Korczynski , M , Langley , K , Murphy , M J & Mastepanov , M 2021 , ' Multiple Ecosystem Effects of Extreme Weather Events in the Arctic ' , Ecosystems , vol. 24 , no. 1 , pp. 122-136 . https://doi.org/10.1007/s10021-020-00507-6 climate change extreme events ecosystem impacts Arctic ecosystems long-term observations SPATIOTEMPORAL VARIABILITY CLIMATE-CHANGE TUNDRA RIVER SEDIMENT PERMAFROST EXCHANGE METHANE FLUX ICE article 2021 ftuniaarhuspubl https://doi.org/10.1007/s10021-020-00507-6 2024-06-04T14:24:06Z The Arctic is getting warmer and wetter. Here, we document two independent examples of how associated extreme precipitation patterns have severe implications for high Arctic ecosystems. The events stand out in a 23-year record of continuous observations of a wide range of ecosystem parameters and act as an early indication of conditions projected to increase in the future. In NE Greenland, August 2015, one-quarter of the average annual precipitation fell during a 9-day intensive rain event. This ranked number one for daily sums during the 1996-2018 period and caused a strong and prolonged reduction in solar radiation decreasing CO2 uptake in the order of 18-23 g C m(-2), a reduction comparable to typical annual C budgets in Arctic tundra. In a different type of event, but also due to changed weather patterns, an extreme snow melt season in 2018 triggered a dramatic gully thermokarst causing rapid transformation in ecosystem functioning from consistent annual ecosystem CO2 uptake and low methane exchange to highly elevated methane release, net source of CO2, and substantial export of organic carbon downstream as riverine and coastal input. In addition to climate warming alone, more frequent occurrence of extreme weather patterns will have large implications for otherwise undisturbed tundra ecosystems including their element transport and carbon interactions with the atmosphere and ocean. Article in Journal/Newspaper Arctic Arctic Climate change Greenland Ice permafrost Thermokarst Tundra Aarhus University: Research Arctic Greenland Ecosystems 24 1 122 136 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
climate change extreme events ecosystem impacts Arctic ecosystems long-term observations SPATIOTEMPORAL VARIABILITY CLIMATE-CHANGE TUNDRA RIVER SEDIMENT PERMAFROST EXCHANGE METHANE FLUX ICE |
spellingShingle |
climate change extreme events ecosystem impacts Arctic ecosystems long-term observations SPATIOTEMPORAL VARIABILITY CLIMATE-CHANGE TUNDRA RIVER SEDIMENT PERMAFROST EXCHANGE METHANE FLUX ICE Christensen, T. R. Lund, M. Skov, K. Abermann, J. Lopez-Blanco, E. Scheller, J. Scheel, M. Jackowicz-Korczynski, M. Langley, K. Murphy, M. J. Mastepanov, M. Multiple Ecosystem Effects of Extreme Weather Events in the Arctic |
topic_facet |
climate change extreme events ecosystem impacts Arctic ecosystems long-term observations SPATIOTEMPORAL VARIABILITY CLIMATE-CHANGE TUNDRA RIVER SEDIMENT PERMAFROST EXCHANGE METHANE FLUX ICE |
description |
The Arctic is getting warmer and wetter. Here, we document two independent examples of how associated extreme precipitation patterns have severe implications for high Arctic ecosystems. The events stand out in a 23-year record of continuous observations of a wide range of ecosystem parameters and act as an early indication of conditions projected to increase in the future. In NE Greenland, August 2015, one-quarter of the average annual precipitation fell during a 9-day intensive rain event. This ranked number one for daily sums during the 1996-2018 period and caused a strong and prolonged reduction in solar radiation decreasing CO2 uptake in the order of 18-23 g C m(-2), a reduction comparable to typical annual C budgets in Arctic tundra. In a different type of event, but also due to changed weather patterns, an extreme snow melt season in 2018 triggered a dramatic gully thermokarst causing rapid transformation in ecosystem functioning from consistent annual ecosystem CO2 uptake and low methane exchange to highly elevated methane release, net source of CO2, and substantial export of organic carbon downstream as riverine and coastal input. In addition to climate warming alone, more frequent occurrence of extreme weather patterns will have large implications for otherwise undisturbed tundra ecosystems including their element transport and carbon interactions with the atmosphere and ocean. |
format |
Article in Journal/Newspaper |
author |
Christensen, T. R. Lund, M. Skov, K. Abermann, J. Lopez-Blanco, E. Scheller, J. Scheel, M. Jackowicz-Korczynski, M. Langley, K. Murphy, M. J. Mastepanov, M. |
author_facet |
Christensen, T. R. Lund, M. Skov, K. Abermann, J. Lopez-Blanco, E. Scheller, J. Scheel, M. Jackowicz-Korczynski, M. Langley, K. Murphy, M. J. Mastepanov, M. |
author_sort |
Christensen, T. R. |
title |
Multiple Ecosystem Effects of Extreme Weather Events in the Arctic |
title_short |
Multiple Ecosystem Effects of Extreme Weather Events in the Arctic |
title_full |
Multiple Ecosystem Effects of Extreme Weather Events in the Arctic |
title_fullStr |
Multiple Ecosystem Effects of Extreme Weather Events in the Arctic |
title_full_unstemmed |
Multiple Ecosystem Effects of Extreme Weather Events in the Arctic |
title_sort |
multiple ecosystem effects of extreme weather events in the arctic |
publishDate |
2021 |
url |
https://pure.au.dk/portal/en/publications/ec7ffb80-4305-4915-9282-8bc560b266f3 https://doi.org/10.1007/s10021-020-00507-6 https://pure.au.dk/ws/files/285132343/s10021_020_00507_6.pdf |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Climate change Greenland Ice permafrost Thermokarst Tundra |
genre_facet |
Arctic Arctic Climate change Greenland Ice permafrost Thermokarst Tundra |
op_source |
Christensen , T R , Lund , M , Skov , K , Abermann , J , Lopez-Blanco , E , Scheller , J , Scheel , M , Jackowicz-Korczynski , M , Langley , K , Murphy , M J & Mastepanov , M 2021 , ' Multiple Ecosystem Effects of Extreme Weather Events in the Arctic ' , Ecosystems , vol. 24 , no. 1 , pp. 122-136 . https://doi.org/10.1007/s10021-020-00507-6 |
op_relation |
https://pure.au.dk/portal/en/publications/ec7ffb80-4305-4915-9282-8bc560b266f3 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s10021-020-00507-6 |
container_title |
Ecosystems |
container_volume |
24 |
container_issue |
1 |
container_start_page |
122 |
op_container_end_page |
136 |
_version_ |
1802638970686799872 |