Palynological Data as Tools for Interpreting Past Climates: Some Examples from Northern North America
Documenting past climates and their associated terrestrial ecosystems is one means of predicting how modern landscapes may respond to changing atmospheric composition resulting from the addition of greenhouse gases. Fossil pollen preserved in lake and bog sediments is an especially valuable source o...
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ftdtic:ADP007339 2023-05-15T18:40:15+02:00 Palynological Data as Tools for Interpreting Past Climates: Some Examples from Northern North America Anderson, P. M. WASHINGTON UNIV SEATTLE QUATERNARY RESEARCH CENTER 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007339 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007339 en eng http://www.dtic.mil/docs/citations/ADP007339 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Geography Meteorology Geology Geochemistry and Mineralogy Biology *CLIMATE *ECOSYSTEMS *FOSSILS *NORTH AMERICA *POLLEN ADDITION ALASKA ANALOGS ATMOSPHERICS CANADA DIAGRAMS ESTIMATES FORESTS GREENHOUSES HIGH LATITUDES INDICATORS LAKES LATITUDE MAPS RECORDS RESOLUTION RESPONSE SEDIMENTS SURFACES SWAMPS TUNDRA SYMPOSIA VEGETATION SPORES Component Reports *Palynological data Terrestrial Greenhouse Gases Bog sediments Prehistoric era Boreal forests Text 1992 ftdtic 2016-02-19T17:39:47Z Documenting past climates and their associated terrestrial ecosystems is one means of predicting how modern landscapes may respond to changing atmospheric composition resulting from the addition of greenhouse gases. Fossil pollen preserved in lake and bog sediments is an especially valuable source of paleoclimatic information. Initially, pollen records were used only as qualitative estimates of climate change, but more recent analyses indicate they can provide accurate quantitative reconstructions. The floristic simplicity of tundra and boreal forest and the coarse taxonomic resolution of northern pollen taxa were believed to seriously limit the use of pollen for interpreting high latitude paleoclimates. However, current studies in Alaska and Canada demonstrate that pollen data are relatively strong and sensitive climate indicators. The status of paleoclimate reconstructions based on pollen records from northern North America is discussed using isopoll maps, response surfaces, analogs, and percentage diagrams. 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, p557-564. See also Volume 1, AD-A253 027. Text Tundra Alaska Defense Technical Information Center: DTIC Technical Reports database Canada 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 Meteorology Geology Geochemistry and Mineralogy Biology *CLIMATE *ECOSYSTEMS *FOSSILS *NORTH AMERICA *POLLEN ADDITION ALASKA ANALOGS ATMOSPHERICS CANADA DIAGRAMS ESTIMATES FORESTS GREENHOUSES HIGH LATITUDES INDICATORS LAKES LATITUDE MAPS RECORDS RESOLUTION RESPONSE SEDIMENTS SURFACES SWAMPS TUNDRA SYMPOSIA VEGETATION SPORES Component Reports *Palynological data Terrestrial Greenhouse Gases Bog sediments Prehistoric era Boreal forests |
spellingShingle |
Geography Meteorology Geology Geochemistry and Mineralogy Biology *CLIMATE *ECOSYSTEMS *FOSSILS *NORTH AMERICA *POLLEN ADDITION ALASKA ANALOGS ATMOSPHERICS CANADA DIAGRAMS ESTIMATES FORESTS GREENHOUSES HIGH LATITUDES INDICATORS LAKES LATITUDE MAPS RECORDS RESOLUTION RESPONSE SEDIMENTS SURFACES SWAMPS TUNDRA SYMPOSIA VEGETATION SPORES Component Reports *Palynological data Terrestrial Greenhouse Gases Bog sediments Prehistoric era Boreal forests Anderson, P. M. Palynological Data as Tools for Interpreting Past Climates: Some Examples from Northern North America |
topic_facet |
Geography Meteorology Geology Geochemistry and Mineralogy Biology *CLIMATE *ECOSYSTEMS *FOSSILS *NORTH AMERICA *POLLEN ADDITION ALASKA ANALOGS ATMOSPHERICS CANADA DIAGRAMS ESTIMATES FORESTS GREENHOUSES HIGH LATITUDES INDICATORS LAKES LATITUDE MAPS RECORDS RESOLUTION RESPONSE SEDIMENTS SURFACES SWAMPS TUNDRA SYMPOSIA VEGETATION SPORES Component Reports *Palynological data Terrestrial Greenhouse Gases Bog sediments Prehistoric era Boreal forests |
description |
Documenting past climates and their associated terrestrial ecosystems is one means of predicting how modern landscapes may respond to changing atmospheric composition resulting from the addition of greenhouse gases. Fossil pollen preserved in lake and bog sediments is an especially valuable source of paleoclimatic information. Initially, pollen records were used only as qualitative estimates of climate change, but more recent analyses indicate they can provide accurate quantitative reconstructions. The floristic simplicity of tundra and boreal forest and the coarse taxonomic resolution of northern pollen taxa were believed to seriously limit the use of pollen for interpreting high latitude paleoclimates. However, current studies in Alaska and Canada demonstrate that pollen data are relatively strong and sensitive climate indicators. The status of paleoclimate reconstructions based on pollen records from northern North America is discussed using isopoll maps, response surfaces, analogs, and percentage diagrams. 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, p557-564. See also Volume 1, AD-A253 027. |
author2 |
WASHINGTON UNIV SEATTLE QUATERNARY RESEARCH CENTER |
format |
Text |
author |
Anderson, P. M. |
author_facet |
Anderson, P. M. |
author_sort |
Anderson, P. M. |
title |
Palynological Data as Tools for Interpreting Past Climates: Some Examples from Northern North America |
title_short |
Palynological Data as Tools for Interpreting Past Climates: Some Examples from Northern North America |
title_full |
Palynological Data as Tools for Interpreting Past Climates: Some Examples from Northern North America |
title_fullStr |
Palynological Data as Tools for Interpreting Past Climates: Some Examples from Northern North America |
title_full_unstemmed |
Palynological Data as Tools for Interpreting Past Climates: Some Examples from Northern North America |
title_sort |
palynological data as tools for interpreting past climates: some examples from northern north america |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007339 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007339 |
geographic |
Canada Fairbanks |
geographic_facet |
Canada Fairbanks |
genre |
Tundra Alaska |
genre_facet |
Tundra Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007339 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766229532478537728 |