Renland Ice Cap Project (ReCAP) and West Antarctic IceCore Site (WAIS) Holocene Methane data for interpolar gradient reconstruction, East Greenland.
The proposed research integrates studies in a range of disciplines (paleoecology, climate, biogeochemistry, geomorphology, geology) to understand the timing, magnitude, and overall contribution of northern cold-climate peatlands and lakes to rapid increases in atmospheric methane (CH4) concentration...
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dataone:urn:uuid:cdda9de2-ed61-4bbf-bdc0-fbbc2040fd84 2023-11-08T14:14:13+01:00 Renland Ice Cap Project (ReCAP) and West Antarctic IceCore Site (WAIS) Holocene Methane data for interpolar gradient reconstruction, East Greenland. Todd Sowers Barents Sea ENVELOPE(26.72,26.72,71.3,71.3) BEGINDATE: 2014-01-01T00:00:00Z ENDDATE: 2014-01-01T00:00:00Z 2018-06-29T19:19:03.734Z https://search.dataone.org/view/urn:uuid:cdda9de2-ed61-4bbf-bdc0-fbbc2040fd84 unknown Arctic Data Center Dataset dataone:urn:node:ARCTIC 2023-11-08T13:41:19Z The proposed research integrates studies in a range of disciplines (paleoecology, climate, biogeochemistry, geomorphology, geology) to understand the timing, magnitude, and overall contribution of northern cold-climate peatlands and lakes to rapid increases in atmospheric methane (CH4) concentrations (AMC) during the last deglaciation. The study will use comprehensive paleoecological records of northern peatland and lake development to document their past spatial and temporal patterns of CH4 emission. This will enable better prediction of future emissions from northern ecosystems, particularly as surface permafrost thaws under scenarios of climate warming. Methane is a potent greenhouse gas. Its global warming potential is many times that of carbon dioxide. Therefore, in order to develop scenarios of future climate change, it is important to be able to estimate how much methane will be released to the atmosphere due to permafrost degradation. This project will constrain that number. Our results indicated that the interpolar CH4 gradient in the early Holocene was ~65ppb and decreased during the middle Holocene to values ~35ppb that held for the later part of the Holocene. These results are consistent with enhanced early Holocene PanArctic CH4 emissions associated with the final retreat of the Laurentide ice sheet. Dataset Antarc* Antarctic Barents Sea East Greenland Greenland Ice Ice cap Ice Sheet permafrost Arctic Data Center (via DataONE) Antarctic Barents Sea Greenland Renland ENVELOPE(-26.750,-26.750,71.200,71.200) ENVELOPE(26.72,26.72,71.3,71.3) |
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Open Polar |
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Arctic Data Center (via DataONE) |
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dataone:urn:node:ARCTIC |
language |
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description |
The proposed research integrates studies in a range of disciplines (paleoecology, climate, biogeochemistry, geomorphology, geology) to understand the timing, magnitude, and overall contribution of northern cold-climate peatlands and lakes to rapid increases in atmospheric methane (CH4) concentrations (AMC) during the last deglaciation. The study will use comprehensive paleoecological records of northern peatland and lake development to document their past spatial and temporal patterns of CH4 emission. This will enable better prediction of future emissions from northern ecosystems, particularly as surface permafrost thaws under scenarios of climate warming. Methane is a potent greenhouse gas. Its global warming potential is many times that of carbon dioxide. Therefore, in order to develop scenarios of future climate change, it is important to be able to estimate how much methane will be released to the atmosphere due to permafrost degradation. This project will constrain that number. Our results indicated that the interpolar CH4 gradient in the early Holocene was ~65ppb and decreased during the middle Holocene to values ~35ppb that held for the later part of the Holocene. These results are consistent with enhanced early Holocene PanArctic CH4 emissions associated with the final retreat of the Laurentide ice sheet. |
format |
Dataset |
author |
Todd Sowers |
spellingShingle |
Todd Sowers Renland Ice Cap Project (ReCAP) and West Antarctic IceCore Site (WAIS) Holocene Methane data for interpolar gradient reconstruction, East Greenland. |
author_facet |
Todd Sowers |
author_sort |
Todd Sowers |
title |
Renland Ice Cap Project (ReCAP) and West Antarctic IceCore Site (WAIS) Holocene Methane data for interpolar gradient reconstruction, East Greenland. |
title_short |
Renland Ice Cap Project (ReCAP) and West Antarctic IceCore Site (WAIS) Holocene Methane data for interpolar gradient reconstruction, East Greenland. |
title_full |
Renland Ice Cap Project (ReCAP) and West Antarctic IceCore Site (WAIS) Holocene Methane data for interpolar gradient reconstruction, East Greenland. |
title_fullStr |
Renland Ice Cap Project (ReCAP) and West Antarctic IceCore Site (WAIS) Holocene Methane data for interpolar gradient reconstruction, East Greenland. |
title_full_unstemmed |
Renland Ice Cap Project (ReCAP) and West Antarctic IceCore Site (WAIS) Holocene Methane data for interpolar gradient reconstruction, East Greenland. |
title_sort |
renland ice cap project (recap) and west antarctic icecore site (wais) holocene methane data for interpolar gradient reconstruction, east greenland. |
publisher |
Arctic Data Center |
publishDate |
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url |
https://search.dataone.org/view/urn:uuid:cdda9de2-ed61-4bbf-bdc0-fbbc2040fd84 |
op_coverage |
Barents Sea ENVELOPE(26.72,26.72,71.3,71.3) BEGINDATE: 2014-01-01T00:00:00Z ENDDATE: 2014-01-01T00:00:00Z |
long_lat |
ENVELOPE(-26.750,-26.750,71.200,71.200) ENVELOPE(26.72,26.72,71.3,71.3) |
geographic |
Antarctic Barents Sea Greenland Renland |
geographic_facet |
Antarctic Barents Sea Greenland Renland |
genre |
Antarc* Antarctic Barents Sea East Greenland Greenland Ice Ice cap Ice Sheet permafrost |
genre_facet |
Antarc* Antarctic Barents Sea East Greenland Greenland Ice Ice cap Ice Sheet permafrost |
_version_ |
1782011989226160128 |