Vostok冰芯的历史同位素温度记录(Historical Isotopic Temperature Record from the Vostok Ice Core).pdfVIP

Vostok 冰芯的历史同位素温度记录(Historical Isotopic Temperature Record from the Vostok Ice Core) 数据介绍： Because isotopic fractions of the heavier oxygen-18 (18O) and deuterium (D) in snowfall are temperature-dependent and a strong spatial correlation exists between the annual mean temperature and the mean isotopic ratio (18O or δD) of precipitation, it is possible to derive ice-core climate records. The record presented by Jouzel et al. (1987) was the first ice core record to span a full glacial-interglacial cycle. That record was based on an ice core drilled at the Russian Vostok station in central east Antarctica. The 2083-m ice core was obtained during a series of drillings in the early 1970s and 1980s and was the result of collaboration between French and former-Soviet scientists. Drilling continued at Vostok and was completed in January 1998, reaching a depth of 3623 m, the deepest ice core ever recovered (Petit et al. 1997, 1999). The resulting core allows the ice core record of climate properties at Vostok to be extended to ~420 kyr BP. 关键词： 历史的,同位素,温度,vostok,冰芯, historical,isotopic,temperature,vostok,ice core, 数据格式： TEXT 数据详细介绍： Historical Isotopic Temperature Record from the Vostok Ice Core J.R. Petit, D. Raynaud, and C. Lorius Laboratoire de Glaciogie et Géophysique de lEnvironnement, CNRS, Saint Martin dHères Cedex, France J. Jouzel and G. Delaygue Laboratoire des Sciences du Climat et de lEnvironnement (LSCE), CEA/CNRS, LOrme des Merisiers, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France N.I. Barkov Arctic and Antarctic Research Institute, Beringa Street 38, 199397 St. Petersburg, Russia V.M. Kotlyakov Institute of Geography, Staromonetny, per 29, Moscow 109017, Russia Period of Record 420,000 years BP-present Methods Because isotopic fractions of the heavier oxygen-18 (18O) and deuterium (D) in snowfall are temperature-dependent and a strong spatial correlation exists between the annual mean temperature and th