Spatial Distribution of Antarctic Surface Ultraviolet Radiation from Satellite and In-Situ Measurements ,

随着南极上空春季臭氧丰度的减少，人们非常关注紫外线辐射增强对该地区生态的影响。戈蒂埃博士建议开发一种方法来绘制落在南极和周围南大洋上的生物活性紫外线（UV-B）和光合活性辐射（PAR）。卫星遥感技术经美国国家科学基金会在南极特定地点进行的紫外线监测项目的地面测量验证，将扩展南极洲上空臭氧和紫外线辐射的地理制图。该项目将特别强调春季臭氧耗损时期。将收集大气数据，以全面了解南极地球-大气系统中的太阳辐射传输。此外，这些信息将用于修改高纬度地区的卫星遥感算法，戈蒂埃博士已经为低纬度地区的地表辐射预算研究开发了这种算法。该项目的结果将是具有50公里分辨率的地表UV-B和PAR辐照度图，可与利用卫星遥感绘制的平流层臭氧丰度图相媲美。

With the appearance of depleted springtime ozone abundances over Antarctica there has been much concern over the impact of enhanced ultraviolet radiation on the region's ecology. Dr. Gautier proposes to develop a method for mapping biologically active ultraviolet (UV-B) and photosynthetically active radiation (PAR) falling on the Antarctic and the surrounding Southern Ocean. Satellite remote sensing techniques, validated with surface measurements from NSF's UV monitoring program at specific Antarctic sites, will extend the geographical mapping of ozone and UV radiation over Antarctica. The project will place special emphasis on the period of springtime ozone depletion. Atmospheric data will be collected to develop a thorough understanding of solar radiation transfer in the Antarctic earth-atmosphere system. Moreover, this information will be used to modify for high-latitude work the satellite remote sensing algorithms already developed by Dr. Gautier for surface radiation budget studies at lower latitudes. The results of this project will be maps of surface UV-B and PAR irradiance having 50 kilometer resolution which are comparable to maps of stratospheric ozone abundance using satellite remote sensing.