Collaborative Research: P2C2--Last Interglacial Earth System: Testing Transient Climate and Ice-sheet Simulations with a Proxy-data Network

合作研究：P2C2——最后一个间冰期地球系统：使用代理数据网络测试瞬态气候和冰盖模拟

• 批准号: 1503032
• 负责人: Peter Clark
• 金额: $ 8.04万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-07-15 至 2018-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1503032&HistoricalAwards=false
• 关键词: Collaborative; Research; P2C2; Last; Interglacial

This project's goal is to conduct high-resolution synchronously coupled transient simulations of the last interglacial period (LIG) using a coupled ocean-atmosphere-ice sheet model (Community Earth System Model) in order to provide a consistent physical framework to investigate the mechanisms behind the higher sea level and the potential ~2 degrees Celsius atmospheric warming during the LIG. With both transient and sensitivity simulations of the LIG, the research team aims to systematically investigate the response of climate and the Greenland ice sheet to variations in Earth's orbital configuration, greenhouse gas concentrations, meridional ocean heat transport associated with the Atlantic Meridional Overturning Circulation (AMOC), and vegetation feedbacks. By comparing these simulations of the LIG with proxy data from published studies and a new data compilation that captures temporal and spatial temperature variability, the researchers plan to address the following fundamental questions about the LIG: 1) What climate feedbacks are responsible for the up to ~2 degree Celsius reconstructed warming during the LIG with respect to the pre-industrial period; 2) How much did the Greenland Ice Sheet (GrIS) contribute to global sea level rise above present day during the LIG; and 3) How well can the coupled ocean atmosphere-ice sheet model simulate abrupt climate change during major climate transitions, such as the last glacial inception.This project supports an early career scientist, developing high-resolution climate model output that could serve the wider science community, and engagement of the broader civil society in science-based education outreach

该项目的目标是使用耦合的海洋 - 大气冰层模型（社区地球系统模型）进行上次冰间时期（LIG）的高分辨率瞬态模拟，以提供一个一致的物理框架，以便提供一个在海平面上的机制，并在较高的海平面和潜在的〜2摄氏度的celsius celsius celius celius the the lig lig lig lig。 借助LIG的瞬时和灵敏度模拟，研究小组的目标是系统地研究气候和格陵兰冰盖对地球轨道构型，温室气体浓度，与大西洋子午线倾倒循环（AMOC）（AMOC）以及植被反馈相关的海洋热传输的反应。 通过将LIG的这些模拟与已发表研究的代理数据进行比较，以及捕获时间和空间温度可变性的新数据汇编，研究人员计划解决有关LIG的以下基本问题：1）哪些气候反馈是导致高达2度摄氏度的摄氏度在与预插入期间相对于预插入期间的摄入量的〜2度摄氏度。 2）格陵兰冰盖（GRIS）在LIG期间的全球海平面上升了多少； 3）结合海洋气氛冰纸模型如何模拟重大气候过渡期间的突然气候变化，例如最后一次冰川构成。该项目支持早期的职业生涯科学家，开发高分辨率的气候模型，可以为更广泛的科学社区提供更广泛的科学社会的参与度，并在基于科学的教育启动外展览中的互动中互动