摘要
本文分析了1987年9月23日南京日食期间的辐射测量。结果表明:直接辐射因日食减小44.7％,这与日食期间大气对它的衰减43.2％很接近,而它与晴天无日食时大气的衰减没有显著差异。日食期间净辐射减小35.8％,散射辐射减小45.5％,紫外辐射减小23.1％。由于这次日食,全球净损失的能量1.8×10^(14)MJ与锋区运动系统的动能相当,是1981年7月31日日食期间能量净损失的9倍。
In the paper, the radiation measurements taken at Nanjing during the solar eclipse on September 23, 1987 were analvsed. The results show: for the direct radiation, the diminution of 44, 7%due to the eclipse is nearlv identical with the diminution of 43.2%bv the atmosphere during the eclipse, which is obviouslv different from that on the elear dav if there would be eclipse. Net radiation was reduced 35.8%during the eclipse, diffuse radiation 45.5%, ultraviolet radiation 23.1%. The net energy loss 1.8×1014MJ in the whole world due to this eclipse, which is 9 times of the loss during the eclipse on July 31, 1981 and is eauival-ent to the kinetic energy of a frontal motion system.
出处
《气象科学》
CSCD
北大核心
1989年第1期93-99,共7页
Journal of the Meteorological Sciences
