Trace Gas Measurements over the South Pole Using MM-Wave Spectroscopy

使用毫米波光谱测量南极上空的痕量气体

• 批准号: 9705667
• 负责人: Robert de Zafra
• 金额: $ 4.9万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-15 至 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9705667&HistoricalAwards=false
• 关键词: Trace; Gas; Measurements; over; South

Abstract 9705667 de Zafra Many atmospheric gases radiate energy in the millimeter wavelength region of the radio spectrum, with each species have a spectrum which is unique to it. The shape of each individual species' spectrum provides information on the temperature and pressure of the gas; thus, one can use the mm wave spectrum of the atmosphere to determine the relative abundances and height distribution of a number of trace species. In this particular investigation, mm spectroscope will be used to monitor ozone , carbon monoxide, nitrous oxide, nitric acid, water vapor and nitrogen dioxide above South Pole, Antarctica over the period of a year. Several of these gases play important roles in the formation of the annual Antarctic ozone hole, while others, particularly water vapor and carbon monoxide, can provide information of the dynamics, particularly vertical transport, of the upper stratosphere and mesosphere. ***

摘要9705667德扎夫拉许多大气气体在射电频谱的毫米波长区辐射能量，每个物种都有一个独特的频谱。每个单独物种光谱的形状提供了关于气体温度和压力的信息；因此，人们可以使用大气的毫米波光谱来确定一些痕量物种的相对丰度和高度分布。在这次特别的调查中，mm分光镜将用来监测南极上空一年中的臭氧、一氧化碳、一氧化二氮、硝酸、水蒸气和二氧化氮。这些气体中有几种在每年南极臭氧层空洞的形成中发挥重要作用，而其他气体，特别是水蒸气和一氧化碳，可以提供关于平流层上层和中间层的动态，特别是垂直输送的信息。***