Solar Radiation in the High Latitude Southern Hemisphere

本研究的重点是数据分析和理论建模， 太阳辐射在高纬度南半球使用 美国国家科学基金会位于帕尔默的分光辐射计测量 南极洲和阿根廷的乌斯怀亚。 其目标是 定义和量化负责的物理机制 观察到紫外线表面辐照度的变化， 光谱的可见区域，重点放在前者。 要研究的变化跨越小时的时间尺度， 云量的波动，到几年，变化可以 由于当地云量和臭氧水平的差异， 一年又一年 特别注意将集中在紫外线 春季臭氧层损耗期间测得的辐射水平 帕默站上空，并在较低的地方寻找任何影响， 乌斯怀亚纬度。 结果将提供全面的 帕尔默站辐射环境的描述， 乌斯怀亚在可见光和生物相关的紫外线 光谱的一部分。

This research focuses on data analysis and theoretical modeling of solar radiation in the high latitude Southern Hemisphere using measurements obtained by NSF spectroradiometers located at Palmer Station, Antarctica and Ushuaia, Argentina. The objectives are to define and quantify the physical mechanisms responsible for observed variations in surface irradiance in the ultraviolet and visible regions of the spectrum, with emphasis on the former. Variations to be studied span time scales of hours, associated with fluctuations in cloudiness, to several years, where changes can arise from differences in local cloudiness and ozone levels from one year to the next. Special attention will focus on ultraviolet radiation levels measured during the springtime ozone depletion over Palmer Station and a search for any effects at the lower latitude of Ushuaia. The results will provide a comprehensive description of the radiation environments at Palmer Station and Ushuaia in the visible and biologically relevant ultraviolet portions of the spectrum.