Collaborative Research: Isentropic Chemical Transport Modeling

合作研究：等熵化学输运模型

• 批准号: 9902987
• 负责人: Natalie Mahowald
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-03-01 至 2002-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9902987&HistoricalAwards=false
• 关键词: Collaborative; Research; Isentropic; Chemical; Transport

This award is one of two made to provide support for a collaborative research project. The companion award is to Dr. Plumb, MIT (ATM-9813327). The project involves the development of a chemical transport model in isentropic coordinates. Isentropic coordinates have the advantage of potentially better capturing the transport characteristics of the atmosphere because they represent surfaces of neutral buoyancy and, thus, are a more natural coordinate for transport. The starting point is an existing chemical transport model, the MATCH model developed at the National Center for Atmospheric Research. This model's vertical coordinate will be converted to an isentropic system and the sub-grid scale mixing and boundary layer mixing parameterizations modified accordingly. It is expected that, in particular, the model will better capture the nature of the transport near the tropopause and thereby contribute to better understanding of stratospheric-tropospheric exchange processes. The principal investigators will test the model's realism by comparing simulations of trace gas transport with other model results and with observations. This project is supported jointly by the Atmospheric Chemistry and Large-scale Dynamic Meteorology Programs.

该奖项是为协作研究项目提供支持的两个奖项之一。 同伴奖是授予MIT Plumb博士（ATM-9813327）。该项目涉及在等等坐标中的化学传输模型的开发。 等性坐标具有更好地捕获大气的运输特性的优势，因为它们代表中性浮力的表面，因此是更自然的运输坐标。 起点是现有的化学运输模型，是国家大气研究中心开发的匹配模型。 该模型的垂直坐标将转换为等粒子系统，以及相应地修改的子网格尺度混合和边界层混合参数化。 预计该模型尤其会更好地捕获对流层顶附近的运输的性质，从而有助于更好地理解平流层 - 对流层交换过程。 首席研究人员将通过比较痕量传输的模拟与其他模型结果和观察结果来测试模型的现实主义。大气化学和大规模动态气象计划共同支持该项目。