Ground Based Infrared Measurements in Antarctica

摘要9526913--这个项目利用了重要大气成分的红外吸收和发射特性，特别是与平流层臭氧的化学破坏有关的许多成分。例子包括氯氟烃-11和12、臭氧、一氧化氮、二氧化氮、硝酸、一氧化二氮、硝酸氯、氯化氢等等。麦克默多将使用一台非常高分辨率的迈克尔逊干涉仪，利用太阳作为红外辐射源，对大约30种化学物质的吸收进行测量。另一台灵敏度较高但分辨率较低的迈克尔逊干涉仪将继续在南极以发射模式运行，这使其能够全年测量一些重要的痕量物种，特别是在漫长的冬季黑暗期间。这对于了解导致每年臭氧空洞的条件尤为重要。该项目由NSF极地计划和大气科学部和NASA地球任务办公室联合支持，*

Abstract 9526913 Murcray This project makes use of the infrared absorption and emission characteristics of important atmospheric constituents, especially many of those which are involved in the chemical destruction of stratospheric ozone. Examples include both chlorofluorocarbon-11 and 12, ozone, nitric oxide, nitric dioxide, nitric acid, nitrous oxide, chlorine nitrate, hydrogen chloride and many more. A very high resolution Michelson interferometer will be operated at McMurdo which will make measurements of some 30 chemical species in absorption using the sun as a source of infrared radiation. Another Michelson interferometer, with higher sensitivity but lower resolution, will continue to be operated at South Pole in the emission mode, which allows it to measure a number of important trace species throughout the entire year, especially during the long winter darkness. This is especially important for understanding the conditions leading up to the annual ozone hole. This project is jointly supported by NSF's Divisions of Polar Programs and Atmospheric Sciences and by NASA's Office of Mission to Planet Earth, ***