Infrared Measurements of Atmospheric Chemistry in Antarctica

9814624 Murcray这一行动逐步停止了麦默多站用于各种大气成分的傅里叶变换红外光谱仪和南极站用于氮化合物测量的发射光谱仪的操作和维护。 多年来开发的数据库包括氯氟烃、一氧化二氮和一氧化氮、硝酸氯、氯化氢和其他对平流层臭氧进行化学破坏的微量元素的浓度。 这些资料的用途有所减少，因为现在对季节性臭氧破坏的化学性质已相当了解，而且目前正在由海洋大气署气候监测和诊断实验室及其南极站观测站对大气成分进行跟踪和监测。 该项目由NSF极地项目办公室和大气科学部联合支持。 这些资金将用于分析南极站硝酸分布的现有数据。

9814624MurcrayThis action phases out the operation and maintenance of a Fourier-transform infrared spectrometer for various atmospheric constituents at McMurdo Station, and an emission spectrometer for nitrogen compound measurements at South Pole Station. The database developed over the years includes concentrations of chlorofluorocarbons, nitrous and nitric oxides, chlorine nitrate, hydrogen chloride, and other trace elements active in the chemical destruction of stratospheric ozone. The utility of the information has decreased because the chemistry of the seasonal ozone destruction is now known quite well, and the tracking and monitoring of atmospheric constituents is being done by the NOAA Climate Monitoring and Diagnostic Laboratory with its observatory at South Pole Station. This project is jointly supported by the NSF's Office of Polar Programs and Division of Atmospheric Sciences. The funds will be used to analyze existing data on the nitric acid distribution over South Pole Station.***