Collaborative Proposal: Aerosol Concentrations, Sources and Transport Pathways in the Arctic Polar Dome during Recent Millennia
The role of aerosols in climate forcing is significant but poorly understood. The primary goals of this project are to (1) develop unique high-time-resolution, millennial-scale records of biomass burning, dust, volcanic, industrial pollution, and sea salt aerosols for two ice core sites inside the A...
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2015
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dataone:urn:uuid:d9b467ae-4648-4d10-9cf7-613da92ae92b 2024-06-03T18:46:22+00:00 Collaborative Proposal: Aerosol Concentrations, Sources and Transport Pathways in the Arctic Polar Dome during Recent Millennia Joseph R. McConnell ENVELOPE(-14.7,94.8,81.6,80.5) BEGINDATE: 0001-01-03T00:00:00Z ENDDATE: 2000-01-01T00:00:00Z 2015-11-06T14:12:30Z https://search.dataone.org/view/urn:uuid:d9b467ae-4648-4d10-9cf7-613da92ae92b unknown Arctic Data Center EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE CHEMISTRY IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS OTHER POINT ANNUAL Dataset 2015 dataone:urn:node:ARCTIC 2024-06-03T18:07:40Z The role of aerosols in climate forcing is significant but poorly understood. The primary goals of this project are to (1) develop unique high-time-resolution, millennial-scale records of biomass burning, dust, volcanic, industrial pollution, and sea salt aerosols for two ice core sites inside the Arctic polar dome and (2) use new and leveraged general circulation models (GCM) and other modeling to interpret these and similar ice core records from outside the polar dome to better understand source regions and transport pathways of aerosols to different regions of the Arctic and their climatic and environmental impacts. Measurements of >35 elemental and chemical components of these aerosols will be made at high depth resolution (>50 measurements per year) in archived ice cores from two lower elevation sites on opposite sides of the Arctic: a 430 m core collected by the University of Copenhagen in 2006 from Flade Isblink ice cap in far northeastern Greenland and a 724 m core collected by the Alfred Wegener Institute (AWI) in 1999 to 2001 from Akademii Nauk ice cap in the Russian Arctic. The measurements build on recently published findings from similar analyses in shallower ice cores. Flade Isblink will provide a >3500 year record of aerosols in the lower troposphere in the North Atlantic sector of the Arctic Ocean ? a region particularly sensitive to changes in Arctic sea ice ? while Akademii Nauk will provide a > 3000 year record of past aerosols in northern Eurasia, as well as dust and pollutants from eastern Asia. By extending instrumental records to recent centuries and millennia, this new generation of ice core records, coupled with model simulations, will transform understanding of recent and late Holocene changes in hemispheric atmospheric circulation, aerosol transport across the polar front, and feedbacks between climate and aerosols. Dataset Alfred Wegener Institute Arctic Arctic Ocean Greenland Ice cap ice core North Atlantic Sea ice Arctic Data Center (via DataONE) Arctic Arctic Ocean Flade Isblink ENVELOPE(-15.000,-15.000,81.583,81.583) Greenland ENVELOPE(-14.7,94.8,81.6,80.5) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE CHEMISTRY IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS OTHER POINT ANNUAL |
spellingShingle |
EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE CHEMISTRY IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS OTHER POINT ANNUAL Joseph R. McConnell Collaborative Proposal: Aerosol Concentrations, Sources and Transport Pathways in the Arctic Polar Dome during Recent Millennia |
topic_facet |
EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE CHEMISTRY IN SITU/LABORATORY INSTRUMENTS > CHEMICAL METERS/ANALYZERS OTHER POINT ANNUAL |
description |
The role of aerosols in climate forcing is significant but poorly understood. The primary goals of this project are to (1) develop unique high-time-resolution, millennial-scale records of biomass burning, dust, volcanic, industrial pollution, and sea salt aerosols for two ice core sites inside the Arctic polar dome and (2) use new and leveraged general circulation models (GCM) and other modeling to interpret these and similar ice core records from outside the polar dome to better understand source regions and transport pathways of aerosols to different regions of the Arctic and their climatic and environmental impacts. Measurements of >35 elemental and chemical components of these aerosols will be made at high depth resolution (>50 measurements per year) in archived ice cores from two lower elevation sites on opposite sides of the Arctic: a 430 m core collected by the University of Copenhagen in 2006 from Flade Isblink ice cap in far northeastern Greenland and a 724 m core collected by the Alfred Wegener Institute (AWI) in 1999 to 2001 from Akademii Nauk ice cap in the Russian Arctic. The measurements build on recently published findings from similar analyses in shallower ice cores. Flade Isblink will provide a >3500 year record of aerosols in the lower troposphere in the North Atlantic sector of the Arctic Ocean ? a region particularly sensitive to changes in Arctic sea ice ? while Akademii Nauk will provide a > 3000 year record of past aerosols in northern Eurasia, as well as dust and pollutants from eastern Asia. By extending instrumental records to recent centuries and millennia, this new generation of ice core records, coupled with model simulations, will transform understanding of recent and late Holocene changes in hemispheric atmospheric circulation, aerosol transport across the polar front, and feedbacks between climate and aerosols. |
format |
Dataset |
author |
Joseph R. McConnell |
author_facet |
Joseph R. McConnell |
author_sort |
Joseph R. McConnell |
title |
Collaborative Proposal: Aerosol Concentrations, Sources and Transport Pathways in the Arctic Polar Dome during Recent Millennia |
title_short |
Collaborative Proposal: Aerosol Concentrations, Sources and Transport Pathways in the Arctic Polar Dome during Recent Millennia |
title_full |
Collaborative Proposal: Aerosol Concentrations, Sources and Transport Pathways in the Arctic Polar Dome during Recent Millennia |
title_fullStr |
Collaborative Proposal: Aerosol Concentrations, Sources and Transport Pathways in the Arctic Polar Dome during Recent Millennia |
title_full_unstemmed |
Collaborative Proposal: Aerosol Concentrations, Sources and Transport Pathways in the Arctic Polar Dome during Recent Millennia |
title_sort |
collaborative proposal: aerosol concentrations, sources and transport pathways in the arctic polar dome during recent millennia |
publisher |
Arctic Data Center |
publishDate |
2015 |
url |
https://search.dataone.org/view/urn:uuid:d9b467ae-4648-4d10-9cf7-613da92ae92b |
op_coverage |
ENVELOPE(-14.7,94.8,81.6,80.5) BEGINDATE: 0001-01-03T00:00:00Z ENDDATE: 2000-01-01T00:00:00Z |
long_lat |
ENVELOPE(-15.000,-15.000,81.583,81.583) ENVELOPE(-14.7,94.8,81.6,80.5) |
geographic |
Arctic Arctic Ocean Flade Isblink Greenland |
geographic_facet |
Arctic Arctic Ocean Flade Isblink Greenland |
genre |
Alfred Wegener Institute Arctic Arctic Ocean Greenland Ice cap ice core North Atlantic Sea ice |
genre_facet |
Alfred Wegener Institute Arctic Arctic Ocean Greenland Ice cap ice core North Atlantic Sea ice |
_version_ |
1800868625153785856 |