Evaluation of the Effect of Surface Characteristics Over Uniform Terrain on the Development of Deep Convective Clouds

均匀地形表面特征对深对流云发展影响的评估

• 批准号: 9114736
• 负责人: Moti Segal
• 金额: --
• 依托单位: University of Kansas Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-01-01 至 1994-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9114736&HistoricalAwards=false
• 关键词: Evaluation; Effect; Surface; Characteristics; Over

Variations of sensible and latent heat fluxes between different soil and vegetation conditions can in some cases be significant and may influence the local development (timing, location and intensity) of deep convective cloud systems. The Principal Investigators will perform a systematic set of numerical experiments in order to quantify the mechanisms and effects by which surface thermal and moisture forcing affect the development of deep convective clouds over different types of terrain. Emphasis will be placed on vegetated and bare soil surfaces as well as sea surfaces under a variety of evapotranspiration conditions. The results will contribute to a basic understanding of the ways by which surface characteristics influence the development of local deep convection and may suggest refinements in the forecasting of such events.

在某些情况下，不同土壤和植被条件之间的感热和潜热通量的变化可能很大，并可能影响深对流云系的局部发展（时间、位置和强度）。主要研究人员将进行一系列系统的数值实验，以量化地面热力和水分强迫影响不同类型地形上深对流云发展的机制和影响。重点将放在植被和裸露的土壤表面，以及在各种蒸散条件下的海面。结果将有助于基本了解地面特征影响当地深对流发展的方式，并可能建议改进此类事件的预报。