Measurements of polar stratospheric clouds, condensation nuclei, and ozone during the austral winter and spring.

该奖项为继续从南极洲的麦克默多飞行气球携带的仪器提供资金，以测量平流层臭氧和极地平流层云粒子。 每年一度的南极臭氧空洞仍然是人类如何用污染物改变全球大气的最令人印象深刻的例子，在这种情况下，是氯氟烃。 臭氧是地球免受太阳紫外线辐射（UV-B）的唯一保护，紫外线辐射能够摧毁生物。 臭氧洞形成的实际原因和机制似乎已得到相当好的理解;然而，继续监测平流层的状况将使模型预测与平流层的实际事件相比较。 关于地球表面暴露于有害的太阳紫外线辐射这样一个极为重要的问题，必须跟踪正在发生的情况，以提高科学认识，并将其作为一项公共政策，这一项目由极地方案办公室和大气科学司联合资助。

This award provides the funds to continue flying balloon borne instruments from McMurdo, Antarctica to measure stratospheric ozone and polar stratospheric cloud particles. The annual Antarctic ozone hole remains the most impressive example of how mankind has altered the global atmosphere with pollutants, in this case chlorofluorocarbons. Ozone is the Earth's only protection from the solar ultraviolet radiation (UV-B) that is capable of destroying living matter. The actual causes and mechanisms of the formation ozone hole appear to be fairly well understood; however, continued monitoring of the state of the stratosphere will allow comparisons of the model predictions with actual events in the stratosphere. On an issue of such great importance as the exposure of the surface of the Earth to harmful solar ultraviolet radiation, it is important to keep track of what is happening both to gain improved scientific understanding and as a matter of public policy.This project is jointly funded by the Office of Polar Programs and the Division of Atmospheric Sciences.