A New Mt. Logan Ice Core Record - Change in Climate and Chemistry of the Atmosphere for the North Pacific
Mt. Logan, in the St. Elias Range, southeast Alaska, offers a unique opportunity for monitoring climate change and change in the atmospheric chemistry of the Gulf of Alaska and the North Pacific. In 1980, a 103-meter (M) ice core was recovered from Mt. Logan which spanned AD 1689-1980. It revealed w...
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ftmaineuniv:oai:digitalcommons.library.umaine.edu:orsp_reports-1086 2023-05-15T16:38:45+02:00 A New Mt. Logan Ice Core Record - Change in Climate and Chemistry of the Atmosphere for the North Pacific Mayewski, Paul Andrew Zielinski, Gregory Kreutz, Karl J. Kurbatov, Andrei V. 2006-04-24T07:00:00Z application/pdf https://digitalcommons.library.umaine.edu/orsp_reports/78 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1086&context=orsp_reports unknown DigitalCommons@UMaine https://digitalcommons.library.umaine.edu/orsp_reports/78 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1086&context=orsp_reports This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). University of Maine Office of Research Administration: Grant Reports Climate Change Climatology Climate Glaciology text 2006 ftmaineuniv 2023-03-12T19:15:02Z Mt. Logan, in the St. Elias Range, southeast Alaska, offers a unique opportunity for monitoring climate change and change in the atmospheric chemistry of the Gulf of Alaska and the North Pacific. In 1980, a 103-meter (M) ice core was recovered from Mt. Logan which spanned AD 1689-1980. It revealed well-defined annual layers, calibrated through the identification of radioactive bomb and volcanic horizons, allowing continuous, sub-seasonal sampling for stable isotopes and ion chemistry. The -29 degree C mean annual temperature at the site assures that the soluble, insoluble, and isotopic components of the core are well preserved. In 2001 and 2002, a new ice core to bedrock (190 M) was recovered from the Prospector-Russel Col area of Mt. Logan by the Geological Survey of Canada. Based on known accumulation rates and preliminary ice flow modeling, the new ice core record may span the entire Holocene and possibly into the Late Glacial. The Principal Investigators will develop and interpret detailed time series over the last 1000-2000 years, including multi-annual to decadal, through the Holocene and perhaps into the Late Glacial for major ions, stable isotopes, trace elements, and tephra utilizing state-of-the-art technology. Intellectual Merit: Interpretations resulting from this research will invoke calibrations between ice core measurements and instrumental series of sea level pressure and temperature first defined by associations found utilizing the 1980 Mt. Logan core. These interpretations will be enhanced by state-of-the-art environmental statistics, comparison with two cores developed by collaborators working at lower elevations in the same region (King Col and Eclipse Icefield), and comparison with other paleoclimate records from the North Pacific, as well as a global array of Holocene records. The highly detailed understanding of the different controls on the upwind side of the United States and Canada, developed from the new Mt. Logan record, should contribute to understanding future change in climate. ... Text ice core Alaska The University of Maine: DigitalCommons@UMaine Gulf of Alaska Canada Pacific |
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Open Polar |
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The University of Maine: DigitalCommons@UMaine |
op_collection_id |
ftmaineuniv |
language |
unknown |
topic |
Climate Change Climatology Climate Glaciology |
spellingShingle |
Climate Change Climatology Climate Glaciology Mayewski, Paul Andrew Zielinski, Gregory Kreutz, Karl J. Kurbatov, Andrei V. A New Mt. Logan Ice Core Record - Change in Climate and Chemistry of the Atmosphere for the North Pacific |
topic_facet |
Climate Change Climatology Climate Glaciology |
description |
Mt. Logan, in the St. Elias Range, southeast Alaska, offers a unique opportunity for monitoring climate change and change in the atmospheric chemistry of the Gulf of Alaska and the North Pacific. In 1980, a 103-meter (M) ice core was recovered from Mt. Logan which spanned AD 1689-1980. It revealed well-defined annual layers, calibrated through the identification of radioactive bomb and volcanic horizons, allowing continuous, sub-seasonal sampling for stable isotopes and ion chemistry. The -29 degree C mean annual temperature at the site assures that the soluble, insoluble, and isotopic components of the core are well preserved. In 2001 and 2002, a new ice core to bedrock (190 M) was recovered from the Prospector-Russel Col area of Mt. Logan by the Geological Survey of Canada. Based on known accumulation rates and preliminary ice flow modeling, the new ice core record may span the entire Holocene and possibly into the Late Glacial. The Principal Investigators will develop and interpret detailed time series over the last 1000-2000 years, including multi-annual to decadal, through the Holocene and perhaps into the Late Glacial for major ions, stable isotopes, trace elements, and tephra utilizing state-of-the-art technology. Intellectual Merit: Interpretations resulting from this research will invoke calibrations between ice core measurements and instrumental series of sea level pressure and temperature first defined by associations found utilizing the 1980 Mt. Logan core. These interpretations will be enhanced by state-of-the-art environmental statistics, comparison with two cores developed by collaborators working at lower elevations in the same region (King Col and Eclipse Icefield), and comparison with other paleoclimate records from the North Pacific, as well as a global array of Holocene records. The highly detailed understanding of the different controls on the upwind side of the United States and Canada, developed from the new Mt. Logan record, should contribute to understanding future change in climate. ... |
format |
Text |
author |
Mayewski, Paul Andrew Zielinski, Gregory Kreutz, Karl J. Kurbatov, Andrei V. |
author_facet |
Mayewski, Paul Andrew Zielinski, Gregory Kreutz, Karl J. Kurbatov, Andrei V. |
author_sort |
Mayewski, Paul Andrew |
title |
A New Mt. Logan Ice Core Record - Change in Climate and Chemistry of the Atmosphere for the North Pacific |
title_short |
A New Mt. Logan Ice Core Record - Change in Climate and Chemistry of the Atmosphere for the North Pacific |
title_full |
A New Mt. Logan Ice Core Record - Change in Climate and Chemistry of the Atmosphere for the North Pacific |
title_fullStr |
A New Mt. Logan Ice Core Record - Change in Climate and Chemistry of the Atmosphere for the North Pacific |
title_full_unstemmed |
A New Mt. Logan Ice Core Record - Change in Climate and Chemistry of the Atmosphere for the North Pacific |
title_sort |
new mt. logan ice core record - change in climate and chemistry of the atmosphere for the north pacific |
publisher |
DigitalCommons@UMaine |
publishDate |
2006 |
url |
https://digitalcommons.library.umaine.edu/orsp_reports/78 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1086&context=orsp_reports |
geographic |
Gulf of Alaska Canada Pacific |
geographic_facet |
Gulf of Alaska Canada Pacific |
genre |
ice core Alaska |
genre_facet |
ice core Alaska |
op_source |
University of Maine Office of Research Administration: Grant Reports |
op_relation |
https://digitalcommons.library.umaine.edu/orsp_reports/78 https://digitalcommons.library.umaine.edu/cgi/viewcontent.cgi?article=1086&context=orsp_reports |
op_rights |
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s). |
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1766029077295136768 |