Spatial Distribution of Antarctic Surface Ultraviolet Radiation from Satellite and In-Situ Measurements ,
Spatial Distribution of Antarctic Surface Ultraviolet Radiation from Satellite and In-Situ Measurements ,
批准号:
9018207
负责人:
Catherine Gautier-Downes
金额:
$14.98万
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
项目状态:
已结题
起止时间:
1991-04-01 至 1993-03-31
中文摘要
随着春季臭氧丰度的减少, 南极洲的影响一直备受关注, 紫外线辐射对该地区生态的影响。 戈蒂埃医生 建议开发一种方法, 紫外线(UV-B)和光合有效辐射(PAR) 落在南极洲和周围的南大洋。 卫星遥感技术,经地面验证 美国国家科学基金会紫外线监测计划在特定南极的测量结果 地点,将扩大臭氧和紫外线的地理测绘 南极洲上空的辐射该项目将特别强调 春季臭氧消耗的时期。 大气数据将 收集,以发展对太阳辐射的全面了解 在南极地球大气系统中的转移。 而且这 信息将用于修改高纬度工作, 卫星遥感算法已经开发的博士。 低纬度地面辐射收支研究。 该项目的结果将是地面UV-B和PAR图 辐照度有50公里的分辨率,相当于 利用卫星遥感绘制平流层臭氧丰度图 感应
英文摘要
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.
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