Carbon-Climate Interactions using the NCAR Climate System Model (CSM)

计划中的工作有以下目标：(1)了解在给定的人为二氧化碳排放情景下决定未来大气二氧化碳增长的最重要过程；(2)了解未来大气二氧化碳增长率和气候变化如何共同演变。调查的主要工具是社区气候系统模型（CCSM）。PI建议在CSM中开发和评估一个交互式碳模块。它们将指定化石燃料CO2的来源，并允许模型交互预测大气CO2负荷、辐射强迫和随后的气候变化，而不是用特定的CO2增长率强迫CSM。他们的直接目标是研究未来大气中二氧化碳的增长速度和气候变化，这是气候对碳循环的反馈的结果。这项工作很重要，因为它将增加我们在耦合模型框架中模拟碳循环的理解和能力。

The planned work has the following objectives: (1) to understand the processes that are most important in determining the future growth of atmospheric CO2 for a given anthropogenic CO2 emission scenario, and(2) to understand how atmospheric CO2 growth rate and climate change may co-evolve in future.The principal tool of the investigation will be Community Climate System Model (CCSM). The PI proposes to develop and evaluate an interactive carbon module in the CSM. Instead of forcing the CSM with specified rates of CO2 growth, they will specify fossil fuel CO2 source and allow the model to interactively predict the atmospheric CO2 burden, radiative forcing and subsequent climate change. Their immediate goal is to examine future rates of atmospheric CO2 growth and climate change as a result of climate feedbacks on the carbon cycle. The work is important because it will increase our understanding and ability to model the carbon cycle in a coupled model framework.