East central North America climates during marine isotope stages 3-5
Long‐term, high‐resolution stalagmite carbon and oxygen isotope records from eastern North America (ENA) provide a midlatitude history of relative changes in moisture availability and climate states during the last interglacial and glacial inception (127.7 to 41.6 ka before present). The West Virgin...
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Veröffentlicht in: | Geophysical research letters 2014-05, Vol.41 (9), p.3233-3237 |
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description | Long‐term, high‐resolution stalagmite carbon and oxygen isotope records from eastern North America (ENA) provide a midlatitude history of relative changes in moisture availability and climate states during the last interglacial and glacial inception (127.7 to 41.6 ka before present). The West Virginia carbon record shows low‐amplitude variability at orbital time scales, superimposed on a long‐term asymmetric pattern similar to global sea level changes. Relative moisture availability peaked at ~114 ka, and following a brief dry interval at ~96 ka, moisture availability gradually decreased. The almost linear change in moisture availability over ENA may reflect gradual changes in midlatitude zonal circulation as the polar cell and Laurentide Ice Sheet expanded or decreased. In contrast, our oxygen record is precession modulated and in phase with spring insolation, perhaps due to changes in precipitation seasonality. The separate pacings by eccentricity (carbon) and precession (oxygen) expose an underlying complexity that will be a challenge to explain.
Key Points
A Late Pleistocene climate history is reconstructed for eastern North America
Relative moisture abundances correlate with orbital‐level sea level changes
The last interglacial ended abruptly, but Ice Age climates changed slowly |
doi_str_mv | 10.1002/2014GL059884 |
format | Article |
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Key Points
A Late Pleistocene climate history is reconstructed for eastern North America
Relative moisture abundances correlate with orbital‐level sea level changes
The last interglacial ended abruptly, but Ice Age climates changed slowly</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2014GL059884</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Americas ; Availability ; Carbon ; Climate ; Climate change ; climate variability ; glacial ; interglacial ; Latitude ; Marine ; Moisture ; Moisture availability ; Orbitals ; Oxygen isotopes ; paleoclimatology ; Precession ; Sea level ; Sea level changes ; Seasonal variations</subject><ispartof>Geophysical research letters, 2014-05, Vol.41 (9), p.3233-3237</ispartof><rights>2014. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4012-e0c62a64c3151cf72da88a8c5f708b5d0d77b5613b5ad5885a1ae99408df2a583</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2014GL059884$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2014GL059884$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1416,1432,11512,27922,27923,45572,45573,46407,46466,46831,46890</link.rule.ids></links><search><creatorcontrib>Springer, Gregory S.</creatorcontrib><creatorcontrib>Rowe, Harold D.</creatorcontrib><creatorcontrib>Hardt, Ben</creatorcontrib><creatorcontrib>Cheng, Hai</creatorcontrib><creatorcontrib>Edwards, R. Lawrence</creatorcontrib><title>East central North America climates during marine isotope stages 3-5</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Long‐term, high‐resolution stalagmite carbon and oxygen isotope records from eastern North America (ENA) provide a midlatitude history of relative changes in moisture availability and climate states during the last interglacial and glacial inception (127.7 to 41.6 ka before present). The West Virginia carbon record shows low‐amplitude variability at orbital time scales, superimposed on a long‐term asymmetric pattern similar to global sea level changes. Relative moisture availability peaked at ~114 ka, and following a brief dry interval at ~96 ka, moisture availability gradually decreased. The almost linear change in moisture availability over ENA may reflect gradual changes in midlatitude zonal circulation as the polar cell and Laurentide Ice Sheet expanded or decreased. In contrast, our oxygen record is precession modulated and in phase with spring insolation, perhaps due to changes in precipitation seasonality. The separate pacings by eccentricity (carbon) and precession (oxygen) expose an underlying complexity that will be a challenge to explain.
Key Points
A Late Pleistocene climate history is reconstructed for eastern North America
Relative moisture abundances correlate with orbital‐level sea level changes
The last interglacial ended abruptly, but Ice Age climates changed slowly</description><subject>Americas</subject><subject>Availability</subject><subject>Carbon</subject><subject>Climate</subject><subject>Climate change</subject><subject>climate variability</subject><subject>glacial</subject><subject>interglacial</subject><subject>Latitude</subject><subject>Marine</subject><subject>Moisture</subject><subject>Moisture availability</subject><subject>Orbitals</subject><subject>Oxygen isotopes</subject><subject>paleoclimatology</subject><subject>Precession</subject><subject>Sea level</subject><subject>Sea level changes</subject><subject>Seasonal variations</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNpdkE1Lw0AQhhdRsFZv_oCAFy_R2d3sR45VayqGClLxuEyTTU3NR91N0P57UyoinmZgnmeYeQk5p3BFAdg1AxolKYhY6-iAjGgcRaEGUIdkBBAPPVPymJx4vwYADpyOyN0UfRdktukcVsG8dd1bMKmtKzMMsqqssbM-yHtXNqugxqHYoPRt125s4DtcDUMeilNyVGDl7dlPHZOX--nidhamT8nD7SQNMQLKQguZZCijjFNBs0KxHLVGnYlCgV6KHHKllkJSvhSYC60FUrRxHIHOC4ZC8zG53O_duPajt74zdekzW1XY2Lb3hgoRSxlToAN68Q9dt71rhusMlREDyaVQA8X21GdZ2a3ZuOFhtzUUzC5P8zdPkzynYqcOUriXSt_Zr18J3buRiithXueJYWr-eLOYKbPg34mWdlI</recordid><startdate>20140516</startdate><enddate>20140516</enddate><creator>Springer, Gregory S.</creator><creator>Rowe, Harold D.</creator><creator>Hardt, Ben</creator><creator>Cheng, Hai</creator><creator>Edwards, R. Lawrence</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope></search><sort><creationdate>20140516</creationdate><title>East central North America climates during marine isotope stages 3-5</title><author>Springer, Gregory S. ; Rowe, Harold D. ; Hardt, Ben ; Cheng, Hai ; Edwards, R. Lawrence</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4012-e0c62a64c3151cf72da88a8c5f708b5d0d77b5613b5ad5885a1ae99408df2a583</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Americas</topic><topic>Availability</topic><topic>Carbon</topic><topic>Climate</topic><topic>Climate change</topic><topic>climate variability</topic><topic>glacial</topic><topic>interglacial</topic><topic>Latitude</topic><topic>Marine</topic><topic>Moisture</topic><topic>Moisture availability</topic><topic>Orbitals</topic><topic>Oxygen isotopes</topic><topic>paleoclimatology</topic><topic>Precession</topic><topic>Sea level</topic><topic>Sea level changes</topic><topic>Seasonal variations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Springer, Gregory S.</creatorcontrib><creatorcontrib>Rowe, Harold D.</creatorcontrib><creatorcontrib>Hardt, Ben</creatorcontrib><creatorcontrib>Cheng, Hai</creatorcontrib><creatorcontrib>Edwards, R. Lawrence</creatorcontrib><collection>Istex</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Springer, Gregory S.</au><au>Rowe, Harold D.</au><au>Hardt, Ben</au><au>Cheng, Hai</au><au>Edwards, R. Lawrence</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>East central North America climates during marine isotope stages 3-5</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2014-05-16</date><risdate>2014</risdate><volume>41</volume><issue>9</issue><spage>3233</spage><epage>3237</epage><pages>3233-3237</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>Long‐term, high‐resolution stalagmite carbon and oxygen isotope records from eastern North America (ENA) provide a midlatitude history of relative changes in moisture availability and climate states during the last interglacial and glacial inception (127.7 to 41.6 ka before present). The West Virginia carbon record shows low‐amplitude variability at orbital time scales, superimposed on a long‐term asymmetric pattern similar to global sea level changes. Relative moisture availability peaked at ~114 ka, and following a brief dry interval at ~96 ka, moisture availability gradually decreased. The almost linear change in moisture availability over ENA may reflect gradual changes in midlatitude zonal circulation as the polar cell and Laurentide Ice Sheet expanded or decreased. In contrast, our oxygen record is precession modulated and in phase with spring insolation, perhaps due to changes in precipitation seasonality. The separate pacings by eccentricity (carbon) and precession (oxygen) expose an underlying complexity that will be a challenge to explain.
Key Points
A Late Pleistocene climate history is reconstructed for eastern North America
Relative moisture abundances correlate with orbital‐level sea level changes
The last interglacial ended abruptly, but Ice Age climates changed slowly</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2014GL059884</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Americas Availability Carbon Climate Climate change climate variability glacial interglacial Latitude Marine Moisture Moisture availability Orbitals Oxygen isotopes paleoclimatology Precession Sea level Sea level changes Seasonal variations |
title | East central North America climates during marine isotope stages 3-5 |
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