CEDAR: Seasonal and Interannual Variations in Thermotidal Forcing by Water Vapor Insolation Absorption

CEDAR：水蒸气吸收吸收引起的热潮汐强迫的季节和年际变化

• 批准号: 9612705
• 负责人: Ruth Lieberman
• 金额: $ 4.32万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-02-01 至 1998-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9612705&HistoricalAwards=false
• 关键词: CEDAR; Seasonal; Interannual; Variations; Thermotidal

This research will update diurnally varying insolation rates using water vapor data from recent global climatologies that overlap the UARS experiment. This enables direct comparison between observed and modeled tides. The main objective is to clarify the effect of tropospheric heating on the seasonal and inter-annual variability of the propagating diurnal tide in the mesosphere and lower thermosphere. This study will enable tide modelers to sort out tropospheric forcing from other mechanisms of tidal variability, such as gravity-wave drag and mean wind influences. The PI's findings will contribute substantially to understanding the temporal variation of tides and global mean circulations in the mesosphere and lower thermosphere.

这项研究将使用与UARS实验重叠的最近全球气候学的水汽数据来更新日变化的日照率。 这使得观测到的和模拟的潮汐之间的直接比较。 主要目的是澄清对流层加热对中层和低热层传播的日潮汐的季节和年际变化的影响。 这项研究将使潮汐建模者能够将对流层强迫与潮汐变化的其他机制（例如重力波阻力和平均风影响）区分开来。 PI的发现将大大有助于了解潮汐的时间变化和中层和低热层的全球平均环流。