The Atmosphere During the Younger Dryas

One of the most dramatic climate change events observed in marine and ice core records is the Younger Dryas, a return to near-glacial conditions that punctuated the last deglaciation. High-resolution, continuous glaciochemical records, newly retrieved from central Greenland, record the chemical comp...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1993-07, Vol.261 (5118), p.195-197
Hauptverfasser: Mayewski, P. A., Meeker, L. D., Whitlow, S., Twickler, M. S., Morrison, M. C., Alley, R. B., Bloomfield, P., Taylor, K.
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container_end_page 197
container_issue 5118
container_start_page 195
container_title Science (American Association for the Advancement of Science)
container_volume 261
creator Mayewski, P. A.
Meeker, L. D.
Whitlow, S.
Twickler, M. S.
Morrison, M. C.
Alley, R. B.
Bloomfield, P.
Taylor, K.
description One of the most dramatic climate change events observed in marine and ice core records is the Younger Dryas, a return to near-glacial conditions that punctuated the last deglaciation. High-resolution, continuous glaciochemical records, newly retrieved from central Greenland, record the chemical composition of the arctic atmosphere at this time. This record shows that both the onset and the termination of the Younger Dryas occurred within 10 to 20 years and that massive, frequent, and short-term (decadal or less) changes in atmospheric composition occurred throughout this event. Changes in atmospheric composition are attributable to changes in the size of the polar atmospheric cell and resultant changes in source regions and to the growth and decay of continental biogenic source regions.
doi_str_mv 10.1126/science.261.5118.195
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This record shows that both the onset and the termination of the Younger Dryas occurred within 10 to 20 years and that massive, frequent, and short-term (decadal or less) changes in atmospheric composition occurred throughout this event. Changes in atmospheric composition are attributable to changes in the size of the polar atmospheric cell and resultant changes in source regions and to the growth and decay of continental biogenic source regions.</abstract><cop>Washington, DC</cop><pub>American Society for the Advancement of Science</pub><pmid>17829276</pmid><doi>10.1126/science.261.5118.195</doi><tpages>3</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0036-8075
ispartof Science (American Association for the Advancement of Science), 1993-07, Vol.261 (5118), p.195-197
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subjects 540110
Air masses
ALKALI METALS
ALKALINE EARTH METALS
AMMONIUM COMPOUNDS
Atmosphere
ATMOSPHERIC CHEMISTRY
ATMOSPHERIC PRECIPITATIONS
CALCIUM
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
Climate change
CLIMATIC CHANGE
Climatic changes
Correlation
EARTH ATMOSPHERE
Earth sciences
Earth, ocean, space
ELEMENTS
ENVIRONMENTAL SCIENCES
Exact sciences and technology
GENERAL CIRCULATION MODELS
GLACIERS
HALIDES
HALOGEN COMPOUNDS
Ice ages
Ice sheets
MAGNESIUM
Marine and continental quaternary
MATHEMATICAL MODELS
METALS
NITRATES
NITROGEN COMPOUNDS
Organic Chemistry
OXYGEN COMPOUNDS
PALEOCLIMATOLOGY
PALEONTOLOGY
POTASSIUM
QUANTITATIVE CHEMICAL ANALYSIS
Quaternary ammonium compounds
Salts
Seas
SODIUM
SULFATES
SULFUR COMPOUNDS
Surficial geology
Younger Dryas period
title The Atmosphere During the Younger Dryas
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