摘要
进入地球大气中的宇宙线强度发生变化,可能导致气候,比如云量的变化．利用羊八井中子监测 器在2003-2004年观测到3次宇宙线福布什下降,在这期间同时记录了观测站点上空的云量变化．通 过对宇宙线福布什下降期间羊八井上空云量的统计分析发现,宇宙线福布什下降期间云量增加,即云 量对宇宙线福布什下降表现出明显的负响应．这表明,宇宙线福布什下降期间,低纬度薄云层地区云量 增加,与其他观测结果相一致．
Due to the solar modulation and other factors, the cosmic ray flux has some changes which maybe induce variation of the Earth＇s climate, such as cloudiness. It is possibly an effective way to research connection between cosmic ray and cloud through studying effect on cloudiness of galactic cosmic ray flux associated with Forbush decrease （FD） events, because climate variation, especially cloudiness, has a response to the FD events. Three FD events had been recorded with Yangbajing neutron monitor during the years from 2003-2004. Variation of cloudiness following FD over the regions of Yangbajing cosmic ray observation has also been observed by infrared radiometer. By statistically analyzing the FD events, it has been found that significant increase of cloud takes place during FD events. The results indicate that the cloudiness increases at lower latitudes in the regions of thinner cloud, which is consistent with results at this lower latitudes found by other investigators.
出处
《高能物理与核物理》
EI
CSCD
北大核心
2006年第1期75-78,共4页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金(10120130794)资助~~
关键词
宇宙线
福布什下降
云量
cosmic ray, forbush decrease, cloudiness
