A Study of Planetary Boundary Layer Processes with Special Emphasis on Land Surface Energy Budget, Award in Indian and U.S. Currencies

对行星边界层过程的研究，特别强调陆地表面能源预算，以印度和美国货币授予奖项

• 批准号: 9216253
• 负责人: Sethu Raman
• 金额: $ 142.31万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-01 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9216253&HistoricalAwards=false
• 关键词: Study; Planetary; Boundary; Layer; Processes

Description: This project provides for the collaboration between Dr. Sethu Raman, of the Department of Marine, Earth and Atmospheric Sciences at North Carolina State University (NCSU), Raleigh, and Dr. A. Prabhu of the Centre for Atmospheric Sciences at the Indian Institute of Science (ISc)in Bangalore. They plan to study the atmospheric boundary layer and the land surface processes in the tropics with special emphasis on applications to agriculture and air pollution meteorological aspects and climate modeling. Specific objectives are: study the mean and turbulent structure of convective boundary layer in the tropics; study the mean and turbulent structure of the nocturnal boundary layer in the tropics which is normally associated with stable conditions with very limited diffusion and can lead to high ground concentrations of pollutants; study the evapo-transpiration processes under different crop and planetary boundary layer (PBL) conditions; study the effect of the changes in the coriolis parameter on the PBL processes with particular emphasis on the nocturnal layer; and determine methods of incorporating these processes in mesoscale numerical methods. Scope: The two scientists have been interacting for about four years including a sabbatical by Dr. Raman at the IISc. They both have extensive qualifications in the research topics, and the two institutes have extensive capabilities to support the research. Bangalore has recently been selected by the Government of India for establishing a national center for boundary layer studies with a 300 meter tower, which should aid this research. The area of study is useful in predicting diffusion of pollutants under various conditions, and should be of benefit to the U.S. and India.

描述：该项目提供了北卡罗来纳州立大学海洋，地球与大气科学系的Sethu Raman博士（Raleigh），Raleigh的海洋和大气科学系与印度科学学院大气科学中心的A. Prabhu博士（ISC）的A. Prabhu博士的合作。 他们计划研究大气边界层和热带地区的陆地表面过程，并特别着重于农业和空气污染气象学方面和气候建模。 特定目标是：研究热带对流边界层的平均和湍流结构；研究热带地区夜间边界层的平均和湍流结构，通常与稳定条件相关，扩散非常有限，并且可能导致高地面污染物的浓度。研究不同作物和行星边界层（PBL）条件下的蒸发蒸发过程；研究科里奥利参数变化对PBL过程的影响，并特别强调夜间层。并确定将这些过程纳入中尺度数值方法的方法。 范围：两位科学家已经互动了大约四年，其中包括拉曼博士在IISC的休假。 他们在研究主题中都有广泛的资格，这两个机构具有支持研究的广泛能力。 印度政府最近选择了班加罗尔（Bangalore），以建立一个具有300米塔的国家边界层研究中心，这应该有助于这项研究。 研究领域对于预测各种条件下污染物的扩散很有用，应该对美国和印度有益。