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

9811976赫伯特该研究小组将支持一个试点项目，以开发在水面浮游生物有孔虫中使用组合的烯酮不饱和度比(UK1 37)和6 18 O，以根据海水的冰量(与陆地冰量成反比变化)来解析海表面温度，并被广泛用作海洋环流和全球气候过去变化的示踪剂。为了将量化值分配给两个控件，需要第二个变量。烯酮不饱和度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618 O应该允许PI求解两个联立方程，以得出过去气候状态下海洋温度和全球冰量的定量估计。这些气候模型有助于理解气候的长期变异性。

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.