Dynamics of the East Pacific Intertropical Convergence Zone

东太平洋热带辐合带的动态

• 批准号: 0352639
• 负责人: David Raymond
• 金额: $ 67.35万
• 依托单位: New Mexico Institute of Mining and Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-04-01 至 2007-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0352639&HistoricalAwards=false
• 关键词: Dynamics; East; Pacific; Intertropical; Convergence

Inter-Tropical Convergence Zone (ITCZ) is an east-west line of convection, which circles the globe in the equatorial regions. Building on data gathered and research initiated during the EPIC2001 (East Pacific Investigation of Climate - 2001) field experiment, several initiatives will be undertaken in this study. It addresses the question whether convection in the East Pacific is controlled by surface fluxes or Ekman convergence; satellite data will be compared to in-situ data from the field experiment with a view to creating a climatological description of the characteristics of the ITCZ. Cumulus cloud ensemble modeling and idealized models will be used to determine the characteristics and variability of the distribution of convection in the East Pacific and if adjustments are required to the parameterization of convection. As a community service as well as for providing observational data for the study, data gathered during EPIC2001 will be processed and archived.

热带辐合带（ITCZ）是一条东西向的对流线，在赤道地区环绕地球。基于在“2001年东太平洋气候调查”（EPIC2001）实地试验期间收集的数据和开展的研究，本研究将采取若干举措。它解决了东太平洋对流是由地表通量还是埃克曼辐合控制的问题；卫星数据将与实地试验的现场数据进行比较，以期对ITCZ的特征作出气候学描述。将使用积云整体模式和理想模式来确定东太平洋对流分布的特征和变率，以及是否需要对对流的参数化进行调整。作为一项社区服务以及为研究提供观测数据，EPIC2001期间收集的数据将被处理和存档。