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Collaborative Research: Analysis of Simulated and Observed Changes in Climate and Environments Across the Permian Deglaciation

合作研究：二叠纪冰消期气候和环境的模拟和观测变化分析

基本信息

批准号：
9632160
负责人：
John Kutzbach
金额：
$ 9.93万
依托单位：
University of Wisconsin-Madison
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1996
资助国家：
美国
起止时间：
1996-09-01 至 1999-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9632160&HistoricalAwards=false
关键词：
Collaborative Research Analysis Simulated Observed

项目摘要

Abstract ATM-9632160 Kutzbach, John E. University of Wisconsin Title: Collaborative Research: Analysis of Simulated and Observed Changes in Climate and Environments Across the Permian Deglaciation The Permian Period contains a transition from a major glaciation to a fully ice-free state. This transition has been ascribed to an increase in atmospheric CO2, and could thus provide an analog in the geologic record for the likely results of human perturbations to the Earth system over the next millennium. This award supports a project to assemble the extensive sources of information on the Permian environment into a unified relational database. This will permit a global assessment of data patterns and their temporal and spatial relationships and will help to determine whether local changes are due to continental motions, rather than "global change." Another aspect of this work is to determine the reliability of the paleoclimate indicators (e.g. dating uncertainties), and thus how unequivocally such data may be used to validate the climate model predictions. These experiments will establish the sensitivity to realistic changes during the Permian in two important climate forcing factors, paleogeography and atmospheric CO2, and their role in explaining the large-scale features of the Permian deglaciation.

摘要ATM-9632160 Kutzbach，John E. 威斯康星州大学题目：合作研究：二叠纪冰消期气候和环境模拟和观测变化分析二叠纪时期包含了一个从主要冰川到完全无冰状态的过渡。这种转变被归因于大气中二氧化碳的增加，因此可以在地质记录中为下一个千年人类扰动地球系统的可能结果提供模拟。该奖项支持一个项目，将有关二叠纪环境的广泛信息源汇集到一个统一的关系数据库中。这将有助于对数据模式及其时间和空间关系进行全球评估，并有助于确定局部变化是否是由于大陆运动而不是“全球变化”。这项工作的另一个方面是确定古气候指标的可靠性（例如测年不确定性），从而确定这些数据如何明确地用于验证气候模型的预测。这些实验将建立在二叠纪的两个重要的气候强迫因素，古地理和大气CO2，以及它们在解释大规模的二叠纪冰川消退的功能的现实变化的敏感性。