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：该项目由北卡罗来纳州立大学(NCSU)海洋、地球和大气科学系的塞图·拉曼博士以及班加罗尔印度科学研究所(ISC)大气科学中心的A·普拉布博士。他们计划研究热带地区的大气边界层和陆地表面过程，特别强调在农业和空气污染、气象方面和气候模拟方面的应用。具体目标是：研究热带对流边界层的平均和湍流结构；研究热带夜间边界层的平均和湍流结构，这种结构通常与扩散非常有限的稳定条件有关，并可能导致地面污染物浓度较高；研究了不同作物和行星边界层(PBL)条件下的蒸散过程，研究了科里奥利参数的变化对PBL过程的影响，特别是对夜间层的影响；并确定将这些过程合并到中尺度数值方法中的方法。范围：这两位科学家已经互动了大约四年，包括拉曼博士在IISC的一次休假。他们在研究课题上都有广泛的资质，两个研究所都有广泛的支持研究的能力。班加罗尔最近被印度政府选为建立一个国家边界层研究中心，该中心有一个300米高的塔楼，这将有助于这项研究。这一研究领域有助于预测各种条件下污染物的扩散，并对美国和印度有利。