Surface UV Irradiance and PAR Variability Over Antarctica

南极洲表面紫外线辐照度和 PAR 变化

• 批准号: 9317120
• 负责人: Catherine Gautier-Downes
• 金额: $ 44.74万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-06-15 至 1998-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9317120&HistoricalAwards=false
• 关键词: Surface; UV; Irradiance; PAR; Variability

9317120 Gautier The budget of Antarctic surface ultraviolet and photosynthetically active irradiance will be investigated over a variety of spatial and temporal scales. This project will continue ongoing mapping work to characterize the spatial variability of surface irradiance over large geographical areas. The largest scale maps will cover the entire Antarctic coastline and Southern Ocean at a fifty kilometer resolution. Higher spatial resolution maps will be constructed for areas where extensive biological research is conducted, and for areas where polar vortex dynamics suggest important radiative phenomena. Satellite mapping will be augmented and refined by incorporating microwave satellite data for ice edge determination and by utilizing Monte Carlo radiative transfer methods to enable a greater variety of cloud simulations. Field work will include the installation during the austral spring of 1994 at Palmer Station, Antarctica a network of newly developed sensors to augment the National Science Foundation Ultraviolet Monitoring Network instrumentation there. This project will be the first to study the albedo of Antarctic peninsular snow, sea ice, and ocean surfaces in the ultraviolet and will provide important results for both physical and biological scientists. ***

9317120 Gautier 将在各种空间和时间尺度上研究南极表面紫外线和光合活跃辐照度的预算。 该项目将继续正在进行的测绘工作，以表征大地理区域表面辐照度的空间变化。 最大比例的地图将以五十公里的分辨率覆盖整个南极海岸线和南大洋。将为进行广泛的生物学研究的区域以及极涡动力学表明存在重要辐射现象的区域构建更高的空间分辨率地图。 通过整合用于冰边缘确定的微波卫星数据以及利用蒙特卡罗辐射传输方法来实现更多种类的云模拟，卫星测绘将得到增强和完善。 实地工作将包括 1994 年春天在南极洲帕尔默站安装一个新开发的传感器网络，以增强国家科学基金会紫外线监测网络仪器的功能。 该项目将是第一个在紫外线下研究南极半岛雪、海冰和海洋表面反照率的项目，将为物理和生物科学家提供重要结果。 ***