COHMAP--Cooperative Holocene Mapping Project

COHMAP--合作全新世测绘项目

• 批准号: 9103000
• 负责人: Patrick Bartlein
• 金额: $ 55.7万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-01 至 1996-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9103000&HistoricalAwards=false
• 关键词: COHMAP; Cooperative; Holocene; Mapping; Project

The study of past climate is necessary to quantify the natural variability in the climate system. This is the goal of the interdisciplinary research group COHMAP (Cooperative Holocene Mapping Project). COHMAP has produced some of the best reconstructions in the field of paleoclimatology. The focus of the PI's research has been the Holocene: that interval of time since the last full glaciation about 20,000 years ago. COHMAP's approach has combined rigorous reconstructions of paleoclimate indicators with sophisticated numerical simulations of past climate. In this manner they have been able to place strong constraints on the range of past climate and provide physically-based mechanisms for the changes observed. In this renewal proposal, COHMAP suggests several new goals for their research program, including producing a new set of boundary conditions for the glacial earth which incorporate the new chronology of the deglaciation and new estimates of ice sheet volume and areal extent. This new research is important because it will provide fundamental insight into the nature of climate during the last 20,000 years and provide an excellent test of the sensitivity and accuracy of General Circulation Models. In addition, COHMAP's research will help to identify regions with insufficient information or model/data contradictions. In this manner, COHMAP research will prove most useful to a wide variety of researchers in paleoclimatology.

对过去气候的研究对于量化 气候系统的自然变化。 这是我们的目标。 跨学科研究小组COHMAP（合作全新世 制图项目）。 COHMAP制作了一些最好的 古气候学领域的重建。 的焦点 PI研究一直是全新世：时间间隔 从两万年前的上一次完整冰川期开始 COHMAP的 这种方法结合了严格的古气候重建 用复杂的数字模拟过去的指标 气候 通过这种方式，他们能够将强大的 对过去气候范围的限制， 观察到的变化的物理机制。 在这 更新建议，COHMAP提出了几个新的目标， 研究计划，包括制定一套新的边界 冰川地球的条件， 冰川消退年表和冰盖的新估计 数量和面积。 这项新研究很重要，因为 它将提供对气候本质的基本见解 在过去的20,000年里， 大气环流模式的敏感性和准确性。 在 此外，COHMAP的研究将有助于确定 信息不足或模型/数据矛盾。 在这 COHMAP的研究将被证明是最有用的， 古气候学的研究者。