| Ice core records of atmospheric N2O covering the last 106,000 years. | |
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MedLine Citation:
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PMID: 12920293 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Paleoatmospheric records of trace-gas concentrations recovered from ice cores provide important sources of information on many biogeochemical cycles involving carbon, nitrogen, and oxygen. Here, we present a 106,000-year record of atmospheric nitrous oxide (N2O) along with corresponding isotopic records spanning the last 30,000 years, which together suggest minimal changes in the ratio of marine to terrestrial N2O production. During the last glacial termination, both marine and oceanic N2O emissions increased by 40 +/- 8%. We speculate that our records do not support those hypotheses that invoke enhanced export production to explain low carbon dioxide values during glacial periods. |
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Authors:
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Todd Sowers; Richard B Alley; Jennifer Jubenville |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 301 ISSN: 1095-9203 ISO Abbreviation: Science Publication Date: 2003 Aug |
Date Detail:
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Created Date: 2003-08-15 Completed Date: 2003-09-08 Revised Date: 2007-03-19 |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
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Languages: eng Pagination: 945-8 Citation Subset: - |
Affiliation:
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Department of Geosciences and the EMS Environment Institute, Pennsylvania State University, UniversityPark, PA 16802, USA. sowers@geosc.psu.edu |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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