ICCR: Forward and Inverse Modeling of Carbon Dioxide and Carbon Isotopes

ICCR：二氧化碳和碳同位素的正向和逆向建模

• 批准号: 0223464
• 负责人: A Denning
• 金额: $ 38.07万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0223464&HistoricalAwards=false
• 关键词: ICCR; Forward; Inverse; Modeling; Carbon

This project involves a three-year research program to study the exchanges of carbon dioxide between the atmosphere, ocean, and terrestrial biosphere, and the processes that govern them. Spatial and temporal variations of isotopic tracers in the atmosphere that contain information about the sources and sinks of carbon dioxide are being investigated. The effort involves the use of the Simple Biosphere model that describes these processes on land and has been successful at predicting variations in carbon dioxide on local, regional, and global scales when coupled to an atmospheric model. New inversion methods to estimate carbon fluxes are being developed and tested using synthetic data produced by the Community Climate System Mode at the National Center for Atmospheric Research. The sensitivity to transport is being investigated using a suite of transport model response functions produced in a model intercomparison study.

该项目包括一个为期三年的研究计划，研究大气、海洋和陆地生物圈之间的二氧化碳交换及其控制过程。 目前正在调查大气中同位素示踪剂的时空变化，这些示踪剂含有关于二氧化碳源和汇的信息。 这项工作涉及使用简单生物圈模型，该模型描述了陆地上的这些过程，并在与大气模型耦合时成功地预测了当地，区域和全球尺度上的二氧化碳变化。 目前正在利用国家大气研究中心社区气候系统模式产生的合成数据，开发和测试估算碳通量的新反演方法。 目前正在使用一套在模型相互比较研究中产生的运输模型响应函数来研究对运输的敏感性。