CO2 and Delta 13CO2 in Antarctic Ice Cores

[9980699] wahlen该奖项是为了支持为期三年的重建几个气候时期南极冰芯中大气二氧化碳（CO2）和碳-13同位素（d13C）浓度的资助。全新世、末次极大冰期(LGM)-全新世过渡和冰期/间冰期的样品将被检查。除了对Taylor Dome和Vostok冰芯进行测量外，还将对1998/99年钻取的simple Dome冰芯进行取样。主要目的是研究消冰期间以及快速气候变化事件（如Dansgaard-Oeschger事件）期间大气CO2浓度及其碳同位素组成变化与温度变化（由冰的18dO和dD表示）之间的相位关系。这将有助于确定全球碳循环在不同气候期间和之间的系统变化，并确定广泛传播的北半球温度稳态/间歇事件是否产生了全球大气二氧化碳信号。将使用经过验证的实验技术。

9980691WahlenThis award is for support for three years of funding to reconstruct the atmospheric carbon dioxide (CO2) and carbon-13 isotope (d13C) concentration in ice cores from Antarctica over several climatic periods. Samples from the Holocene, the Last Glacial Maximum (LGM)-Holocene transition and glacial stadial/interstadial episodes will be examined. Samples from the Siple Dome ice core drilled in 1998/99 will be made, in addition to measurements from the Taylor Dome and Vostok ice cores. The major objectives are to investigate the phase relationships between variations in the concentration of atmospheric CO2, its carbon isotope composition, and temperature changes (indicated by 18dO and dD of the ice) during deglaciations as well as across rapid climate change events (e.g. Dansgaard-Oeschger events). This will help to determine systematic changes in the global carbon cycle during and between different climatic periods, and to ascertain if the widely spread northern hemisphere temperature stadial/interstadial events produced a global atmospheric carbon dioxide signal. Proven experimental techniques will be used.