Subsidence of high atmospheric air above the Arctic derived from CO time series measured by ground-based microwave radiometers.

北极上空高层大气的沉降源自地面微波辐射计测量的二氧化碳时间序列。

• 批准号: 65226577
• 负责人: Dr. Mathias Palm
• 金额: --
• 依托单位: Institut für Umweltphysik (IUP)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2012-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/65226577?language=en
• 关键词: Subsidence; atmospheric; air; above; Arctic

In this project a data-set of ground-based measurements of stratomesospheric CO above the Arctic will be used to study the dynamics of the Arctic winter atmosphere between 40 and 100 km altitude. With the help of two established models, WACCM and B3DCTM, the downtransport of thermospheric and mesospheric air will be investigated. The duration and strength of this descend in the Arctic winter determines the load of radicals in the spring stratosphere and influences the O3 destruction via the NOX catalytic cycle. This project sets a starting point to monitor the development of the meridional circulation and will eventually help answering the question if this circulation is influenced by climate change.

在该项目中，北极上方平流层二氧化碳的地面测量数据集将用于研究 40 至 100 公里海拔之间北极冬季大气的动态。在两个已建立的模型 WACCM 和 B3DCTM 的帮助下，将研究热层和中间层空气的向下传输。北极冬季下降的持续时间和强度决定了春季平流层中自由基的负荷，并通过氮氧化物催化循环影响 O3 的破坏。该项目设定了监测经向环流发展的起点，最终将有助于回答经向环流是否受到气候变化影响的问题。

项目成果

Observation of strato-mesospheric CO above Kiruna with ground-based microwave radiometry – retrieval and satellite comparison

• DOI: 10.5194/amt-4-2389-2011
• 发表时间: 2011-11
• 期刊: Atmospheric Measurement Techniques
• 影响因子: 3.8
• 作者: C. Hoffmann;U. Raffalski;M. Palm;B. Funke;S. Golchert;G. Hochschild;J. Notholt

CO at 40-80 km above Kiruna observed by the ground-based microwave radiometer KIMRA and simulated by the Whole Atmosphere Community Climate Model

由地面微波辐射计 KIMRA 观测到的基律纳上空 40-80 公里处的 CO，并由整个大气群落气候模型模拟

• DOI: 10.5194/acp-12-3261-2012
• 发表时间: 2012
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: C. G. Hoffmann;D. E. Kinnison;R. R. Garcia;M. Palm;J. Notholt;U. Raffalski;G. Hochschild
• 通讯作者: G. Hochschild