The Influence of Solar Radiation Perturbations on the Coupling of Atmospheric Layers - SORACAL

太阳辐射扰动对大气层耦合的影响 - SORACAL

• 批准号: 5453293
• 负责人: Dr. Ingo Kirchner
• 金额: --
• 依托单位: Institut für Meteorologie
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2005
• 资助国家: 德国
• 起止时间: 2004-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5453293?language=en
• 关键词: Influence; Solar; Radiation; Perturbations; Coupling

Strong regional differences in ozone reductions are due to large-scale transport by planetary waves. Hence, during 1st and 2nd phase of project, we diagnosed observed zonally asymmetric ozone and its effects in order to improve our understanding of the links between the related radiation perturbations and dynamics. The results lead to new important questions. We found a nearly linear increase of planetary wave one structure in ozone during 1960-2000, but the processes leading to this increase are unknown up to now. We plan to clear up this question by model process studies including linear ozone transport and linear ozone-dynamic feedback. We found also a surprisingly strong contribution of related radiation perturbations to long-term changes in temperature and planetary waves. It is very important to extend these investigations based on recently released observational data (assimilations, measurements), but also based on recent data of Chemistry Climate Models (CCMs) used within the DFG SPP CAWSES and within international CCM validation activity. We plan to diagnose the effects of planetary wave structures in ozone but also in other important tracers (stratospheric aerosol), including effects of solar variability and ocean’s surface temperature variability. At least our project will contribute to the improvement of CCMs used for future IPCC scenarios.

臭氧减少的区域差异很大是由于行星波的大规模传输。因此，在项目的第一和第二阶段，我们诊断观察到的纬向不对称臭氧及其影响，以提高我们的理解相关的辐射扰动和动力学之间的联系。这些结果引出了新的重要问题。在1960-2000年期间，我们发现臭氧中行星波一结构几乎呈线性增加，但导致这种增加的过程至今还不清楚。我们计划通过包括线性臭氧传输和线性臭氧动力反馈的模型过程研究来澄清这个问题。我们还发现了一个令人惊讶的强大贡献的相关辐射扰动的长期变化的温度和行星波。根据最近发布的观测数据（同化，测量）以及DFG SPP CAWSES和国际CCM验证活动中使用的化学气候模式（CCM）的最新数据扩展这些调查非常重要。我们计划诊断行星波结构对臭氧以及其他重要示踪物（平流层气溶胶）的影响，包括太阳变化和海洋表面温度变化的影响。至少我们的项目将有助于改进用于未来IPCC情景的CCM。