Past environment and climate changes at the last Interglacial/Glacial transition (Les Échets, France) inferred from subfossil chironomids (Insecta)
نویسندگان
چکیده
منابع مشابه
Tropical climate at the last glacial maximum inferred from glacier mass-balance modeling.
Model-derived equilibrium line altitudes (ELAs) of former tropical glaciers support arguments, based on other paleoclimate data, for both the magnitude and spatial pattern of terrestrial cooling in the tropics at the last glacial maximum (LGM). Relative to the present, LGM ELAs were maintained by air temperatures that were 3.5 degrees to 6.6 degrees C lower and precipitation that ranged from 63...
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The last glacial period was terminated by an abrupt warming event in the North Atlantic approximately 15,000 years before the present, and warming events of similar age have been reported from low latitudes. Understanding the mechanism of this termination requires that the precise relative timing of abrupt climate warming in the tropics versus the North Atlantic be known. Nitrogen and argon iso...
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Three sensitivity experiments using an Ocean Atmosphere General Circulation Model (OAGCM) are conducted to simulate the climate impact of precession. The relative contributions of components of the hydrological cycle including the albedo of Arctic sea ice, advection of atmospheric water vapor and sea surface temperature to the summer Arctic melt process are evaluated. Timing of the perihelion i...
متن کاملChironomids record terrestrial temperature changes throughout Arctic interglacials of the past 200,000 yr
Yarrow Axford1,2,†, Jason P. Briner3, Donna R. Francis4, Gifford H. Miller2,5, Ian R. Walker6, and Alexander P. Wolfe7 Department of Earth and Planetary Sciences, Northwestern University, 1850 Campus Drive, Evanston, Illinois 60208, USA Institute of Arctic and Alpine Research, University of Colorado, UCB 450, Boulder, Colorado 80309, USA Department of Geology, University at Buffalo, 411 Cooke H...
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Comparison of large-scale temperature reconstructions over the past millennium reveals agreement on major climatic episodes, but substantial divergence in reconstructed (absolute) temperature amplitude. We here detail several research priorities to overcome this ‘amplitude desideratum’, and discuss the relevance of this effort for the prediction of future temperature changes and the meaning of ...
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ژورنال
عنوان ژورنال: Comptes Rendus Geoscience
سال: 2007
ISSN: 1631-0713
DOI: 10.1016/j.crte.2007.03.002