Experiments with the Climatic Response to Radiation Forcing Over the Milankovitch Frequency Band - SPECMAP Project

这是SPECMAP的延续，SPECMAP是1979年开始的研究计划。SPECMAP的总体目标是促进我们对轨道时间尺度(10,000至100,000年)气候动力学的理解。在这个频段上，全球气候系统的重大变化是由传入辐射的年度周期中的调制外部强迫的。SPECMAP研究的这一阶段包括向实验计划的重大转变，在该计划中，现有的SPECMAP数据库被关键的新观测扩大，被同化为一系列的数值实验。这些实验将围绕三个主题进行：热带海洋、高纬度过程和海洋碳系统。这项研究很重要，因为它提供了一个难得的机会(这是一个非常精确地知道强迫的机会)，可以对气候变化的机制进行定量研究。其具体目标是了解海洋与大气和冰冻层耦合，通过改变热量、盐和碳的通量来调节地球对轨道强迫的气候响应的物理和化学机制。

This is a continuation of SPECMAP, a research program begun in 1979. The general goal of SPECMAP is to advance our understanding of climate dynamics on orbital time scales (10,000 to 100,000 years). Over this frequency band, major changes in the global climate system are externally forced by modulations in the annual cycle of incoming radiation. This phase of SPECMAP research includes a major shift toward an experimental program in which the existing SPECMAP database augmented by crucial new observations, is assimilated into a series of numerical experiments. These experiments will be conducted around three themes: the tropical ocean, high- latitude processes, and the ocean carbon system. This research is important because it provides a rare opportunity (one for which the forcing is known with great precision) to conduct quantitative investigations of the mechanisms of climate change. The specific goal is to understand the physical and chemical mechanisms by which the ocean, coupled to the atmosphere and cryosphere, mediates the climatic response of the earth to orbital forcing by altering the fluxes of heat, salt, and carbon.