The Measurement and Interpretation of Deuterium Excess Profiles in Polar Ice

全新世冰雪中氘过量的连续剖面 在格陵兰和南极洲将被审查和相关的 目前可用的极区氘过量值分布图 冰 其中包括两个表面积雪的剖面，一个靠近克里特岛， 一个在格陵兰岛的DYE-3，威斯康星州的一部分冰 格陵兰岛DYE-3和全新世末次冰期最大期 南极洲冰穹C 所有这些资料都显示 氘过量值的明显、系统性变化， 同位素值的变化。 该项目将决定 极地雪中氘过量值变化的原因 将研究在冰河时期氘过剩的变化， 格陵兰岛间冰期过渡，沿沿着的地表积雪 到南极洲东部的内陆样带， 南极洲和北大西洋的现代蒸汽蒸发 海洋

Continuous profiles of deuterium excess in Holocene snow and ice in Greenland and Antarctica will be examined and correlated with currently available profiles of deuterium excess values in polar ice. These include two profiles of surface snow, one near Crete, Greenland, and one at DYE-3, Greenland, a section of Wisconsin ice at DYE-3, Greenland, and the Holocene last glacial maximum transition at Dome C, Antarctica. All of these profiles show clear, systematic changes in deuterium excess values accompanying changes in the isotope values. This project will determine the causes of changes in the deuterium excess values of polar snow and will examine changes in deuterium excess during the glacial to interglacial transition in Greenland, surface snow along coastal to inland transects in East Antarctica, seasonal cycles in East Antarctica, and modern vapor evaporating in the North Atlantic Ocean.