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

卫星和现场测量南极表面紫外线辐射的空间分布，

• 批准号: 9018207
• 负责人: Catherine Gautier-Downes
• 金额: $ 14.98万
• 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: 1991
• 资助国家: 美国
• 起止时间: 1991-04-01 至 1993-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9018207&HistoricalAwards=false
• 关键词: Spatial; Distribution; Antarctic; Surface; Ultraviolet

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.

随着南极洲春季臭氧丰度的减少，人们越来越担心紫外线辐射增强对该地区生态的影响。 Gautier 博士提议开发一种方法来绘制南极洲和周围南大洋的生物活性紫外线 (UV-B) 和光合活性辐射 (PAR) 地图。 卫星遥感技术经过美国国家科学基金会在特定南极地点的紫外线监测计划的表面测量的验证，将扩大南极洲臭氧和紫外线辐射的地理测绘范围。该项目将特别关注春季臭氧消耗时期。 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戈蒂埃博士已经开发的用于低纬度表面辐射预算研究的卫星遥感算法，以适应高纬度工作。 该项目的结果将是分辨率为 50 公里的表面 UV-B 和 PAR 辐照度地图，可与使用卫星遥感绘制的平流层臭氧丰度地图相媲美。