Ultraviolet and Visible Spectroscopy

该合同将为NOAA航空实验室提供为期五年的后勤支持，以在南极洲的麦克默多和帕尔默站进行测量，并在格陵兰岛的图勒提供一些后勤帮助。地面可见光和紫外光谱将用于测量平流层中臭氧（O3）、氧化二氮（和氧化三氮）、二氧化氯（OClO）和一氧化二溴（BrO）的柱丰度。同时测量这些气体及其季节和日变化，对于研究极地臭氧空洞和造成臭氧破坏的光化学具有特别的价值。这个项目对研究人为对全球变化的影响很重要。

This award will provide logistical support for a period of five years to the NOAA Aeronomy Laboratory to make measurements from McMurdo and Palmer Stations in Antarctica, and to provide some logistical help in Thule, Greenland. Ground-based visible and ultraviolet spectroscopy will be used to measure stratospheric column abundances of ozone (O3), nitrogen di (and tri) oxide (NO2 and NO3), chlorine dioxide (OClO) and bromine monoxide (BrO). The simultaneous measurements of these gases, and their seasonal and diurnal variations, are of particular value in studying the polar ozone holes and the photochemistry which is responsible for the destruction of ozone. This project is important for the study of manmade effects on global change.