Paleoclimatic Significance of High Latitude Loess Deposits
Loess deposits reflect changing environmental conditions in terrestrial regions, and contain long paleoclimatic records analogous to those found in marine sediments, lacustrine sediments, and ice sheets. Alaskan loess was deposited at rates of ca. 0.05-0.5 mm yr-l during the last 2-3 x 106 years; lo...
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ftdtic:ADP007345 2023-05-15T16:37:32+02:00 Paleoclimatic Significance of High Latitude Loess Deposits Beget, James E. ALASKA UNIV FAIRBANKS 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007345 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007345 en eng http://www.dtic.mil/docs/citations/ADP007345 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Geography Soil Mechanics Meteorology *CLIMATE *HIGH LATITUDES *PERMAFROST *SILT ARTIFACTS ATMOSPHERICS DEPOSITS FOSSILS HISTORY ICE INTENSITY LATITUDE MODELS PRECIPITATION RATES RECORDS REGIONS SEDIMENTS SHEETS SITES TEMPERATURE TIME TIME SERIES ANALYSIS TRANSIENTS WIND SYMPOSIA VOLCANOES ECOLOGY ALASKA METHANE CARBON DIOXIDE Component Reports *Loess deposits *Paleoclimatic significance Environmental conditions Terrestrial regions Lacurtrine sediments Storms Paleosol-formation Text 1992 ftdtic 2016-02-19T17:39:52Z Loess deposits reflect changing environmental conditions in terrestrial regions, and contain long paleoclimatic records analogous to those found in marine sediments, lacustrine sediments, and ice sheets. Alaskan loess was deposited at rates of ca. 0.05-0.5 mm yr-l during the last 2-3 x 106 years; loess deposits contain some of the longest and most complete proxy climate records yet found. New analytical methods are used to reconstruct changes in climate and atmospheric regime including wind intensity, storminess, temperature, and precipitation. Loess also contains a history of permafrost and paleosol formation, volcanic eruptions, and paleoecologic changes in high latitude regions, as well as Quaternary fossils and early man sites and artifacts. Time series analysis of proxy climate data from loess supports the astronomic model of climate change, although some transient climate events recorded in loess records are too short to be explained by orbital insolation forcing, and may instead correlate with rapid, short-term changes in atmospheric C02 and CH4 content. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 1990. Volume 2', AD-A253 028, p594-598. See also Volume 1, AD-A253 027. Text Ice permafrost Alaska Defense Technical Information Center: DTIC Technical Reports database Fairbanks |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Geography Soil Mechanics Meteorology *CLIMATE *HIGH LATITUDES *PERMAFROST *SILT ARTIFACTS ATMOSPHERICS DEPOSITS FOSSILS HISTORY ICE INTENSITY LATITUDE MODELS PRECIPITATION RATES RECORDS REGIONS SEDIMENTS SHEETS SITES TEMPERATURE TIME TIME SERIES ANALYSIS TRANSIENTS WIND SYMPOSIA VOLCANOES ECOLOGY ALASKA METHANE CARBON DIOXIDE Component Reports *Loess deposits *Paleoclimatic significance Environmental conditions Terrestrial regions Lacurtrine sediments Storms Paleosol-formation |
spellingShingle |
Geography Soil Mechanics Meteorology *CLIMATE *HIGH LATITUDES *PERMAFROST *SILT ARTIFACTS ATMOSPHERICS DEPOSITS FOSSILS HISTORY ICE INTENSITY LATITUDE MODELS PRECIPITATION RATES RECORDS REGIONS SEDIMENTS SHEETS SITES TEMPERATURE TIME TIME SERIES ANALYSIS TRANSIENTS WIND SYMPOSIA VOLCANOES ECOLOGY ALASKA METHANE CARBON DIOXIDE Component Reports *Loess deposits *Paleoclimatic significance Environmental conditions Terrestrial regions Lacurtrine sediments Storms Paleosol-formation Beget, James E. Paleoclimatic Significance of High Latitude Loess Deposits |
topic_facet |
Geography Soil Mechanics Meteorology *CLIMATE *HIGH LATITUDES *PERMAFROST *SILT ARTIFACTS ATMOSPHERICS DEPOSITS FOSSILS HISTORY ICE INTENSITY LATITUDE MODELS PRECIPITATION RATES RECORDS REGIONS SEDIMENTS SHEETS SITES TEMPERATURE TIME TIME SERIES ANALYSIS TRANSIENTS WIND SYMPOSIA VOLCANOES ECOLOGY ALASKA METHANE CARBON DIOXIDE Component Reports *Loess deposits *Paleoclimatic significance Environmental conditions Terrestrial regions Lacurtrine sediments Storms Paleosol-formation |
description |
Loess deposits reflect changing environmental conditions in terrestrial regions, and contain long paleoclimatic records analogous to those found in marine sediments, lacustrine sediments, and ice sheets. Alaskan loess was deposited at rates of ca. 0.05-0.5 mm yr-l during the last 2-3 x 106 years; loess deposits contain some of the longest and most complete proxy climate records yet found. New analytical methods are used to reconstruct changes in climate and atmospheric regime including wind intensity, storminess, temperature, and precipitation. Loess also contains a history of permafrost and paleosol formation, volcanic eruptions, and paleoecologic changes in high latitude regions, as well as Quaternary fossils and early man sites and artifacts. Time series analysis of proxy climate data from loess supports the astronomic model of climate change, although some transient climate events recorded in loess records are too short to be explained by orbital insolation forcing, and may instead correlate with rapid, short-term changes in atmospheric C02 and CH4 content. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 1990. Volume 2', AD-A253 028, p594-598. See also Volume 1, AD-A253 027. |
author2 |
ALASKA UNIV FAIRBANKS |
format |
Text |
author |
Beget, James E. |
author_facet |
Beget, James E. |
author_sort |
Beget, James E. |
title |
Paleoclimatic Significance of High Latitude Loess Deposits |
title_short |
Paleoclimatic Significance of High Latitude Loess Deposits |
title_full |
Paleoclimatic Significance of High Latitude Loess Deposits |
title_fullStr |
Paleoclimatic Significance of High Latitude Loess Deposits |
title_full_unstemmed |
Paleoclimatic Significance of High Latitude Loess Deposits |
title_sort |
paleoclimatic significance of high latitude loess deposits |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007345 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007345 |
geographic |
Fairbanks |
geographic_facet |
Fairbanks |
genre |
Ice permafrost Alaska |
genre_facet |
Ice permafrost Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007345 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766027822972796928 |