SGER: Reconstructing the Glacial Ice Volume Effect Through Paired Planktonic &180 and Uk'37

9811976 Herbert这个SGER将支持一个试点项目，开发在一个居住在海面的浮游有孔虫中使用烯酮不饱和比（Uk1 37）和6 18 O的组合，通过海水的冰量（与陆地冰量成反比）来解决海洋表面温度，并被广泛用作海洋环流和全球气候过去变化的示踪剂。为了给两个控件分配定量值，需要第二个变量。烯酮不饱和被认为完全受环境温度控制，没有冰量效应，因此结合Uk 37和618o应该允许PI解决两个联立方程，得出过去气候状态下海洋温度和全球冰量的定量估计。这些气候模型用来了解长期气候变化。

9811976 Herbert This SGER will support a pilot project to develop the use of combined alkenone unsaturation ratios (Uk1 37) and 6 18 O in a surface-dwelling planktic foraminifer to resolve sea-surface temperature from ice-volume of ocean water (which varies inversely with ice volume on land) and is widely used as a tracer of past changes in ocean circulation and global climate. In order to assign quantitive values to the two controls, a second variable is needed . Alkenone unsaturation is believed to be controlled purely by ambient temperature, with no ice-volume effect, so that combining Uk 37 and 618 O should permit the PI to solve two simultaneous equations to derive quantitative estimates of both ocean temperature and global ice volume for past climate states. These climate models to understand long-term climate variability.