High-Resolution Spectroscopy of Molecules to Support Upper Atmospheric Studies

支持高层大气研究的高分辨率分子光谱

• 批准号: 9422940
• 负责人: Malathy Venkataraman
• 金额: $ 1.33万
• 依托单位: College of William and Mary
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-01 至 1996-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9422940&HistoricalAwards=false
• 关键词: Resolution; Spectroscopy; Molecules; Support; Upper

Malathy Venkataraman of The College of William and Mary is supported by the Experimental Physical Chemistry Program and the India/South Asia Program to perform high resolution infrared spectroscopic studies of molecules contributing to the greenhouse effect and ozone depletion. This project is a collaborative effort between Dr. Venkataraman and Dr. D'Cunha of the Bhabha Atomic Research Center (B.A.R.C.), Bombay, India. Infrared spectra of carbonyl fluoride and halon-1301 will be taken using the high-resolution Fourier transform spectrometer at the National Institute of Standards and Technology, and analyzed using computer programs developed at B.A. R. C. Low temperature diode laser absorption spectra of halon-1301 will be taken at the NASA Langley Research Center in order to obtain more complete information on its molecular parameters. This spectroscopic data will be valuable in pollution monitoring and identification of spectral signatures in upper atmospheric research. Chlorofluorocarbons, such as freons and halons, are known to be responsible for much of the ozone depletion problem. The atmospheric concentrations of these molecules are currently estimated from product analysis. This research will provide information which can be used to directly monitor the concentrations of these pollutants in the atmosphere.

威廉和玛丽学院的Malathy Venkataraman得到了实验物理化学计划和印度/南亚计划的支持，对导致温室效应和臭氧消耗的分子进行高分辨率红外光谱研究。该项目是印度孟买Bhabha原子研究中心(B.A.R.C.)的Venkataraman博士和D‘Cunha博士的合作成果。将使用美国国家标准与技术研究所的高分辨率傅里叶变换光谱仪拍摄羰基氟化物和哈龙-1301的红外光谱，并使用B.A.R.C.开发的计算机程序进行分析。将在NASA兰利研究中心拍摄哈龙-1301的低温二极管激光吸收光谱，以获得关于其分子参数的更完整信息。这些光谱数据在高层大气研究中的污染监测和光谱特征识别中将是有价值的。众所周知，氟里昂和哈龙等氯氟烃是造成臭氧消耗问题的主要原因。这些分子的大气浓度目前是通过产品分析估计的。这项研究将提供可用于直接监测大气中这些污染物浓度的信息。