Publikationsdatum:
1999-06-05
Beschreibung:
Oxygen-isotope ratios of precipitation (delta18OP) inferred from deep-lake ostracods from the Ammersee (southern Germany) provide a climate record with decadal resolution. The record in detail shows many of the rapid climate shifts seen in central Greenland ice cores between 15,000 and 5000 years before the present (B.P.). Negative excursions in the estimated delta18OP from both of these records likely reflect short weakenings of the thermohaline circulation caused by episodic discharges of continental freshwater into the North Atlantic. Deviating millennial-scale trends, however, indicate that climate gradients between Europe and Greenland changed systematically, reflecting a gradual rearrangement of North Atlantic circulation during deglaciation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉von Grafenstein U -- Erlenkeuser -- Brauer -- Jouzel -- Johnsen -- New York, N.Y. -- Science. 1999 Jun 4;284(5420):1654-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire des Sciences du Climat et de l'Environnement (LSCE), F-91198 Gif-sur-Yvette, France. Leibniz-Labor fur Altersbestimmung und Isotopenforschung der Universitat Kiel, Germany. Laboratoire de Botanique Historique et Palynologie, Faculte d.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10356392" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Digitale ISSN:
1095-9203
Thema:
Biologie
,
Chemie und Pharmazie
,
Informatik
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
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