Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029253 |
Cloudiness and Solar Radiation During the Longest Total Solar Eclipse of the 21st Century at Tianhuangping (Zhejiang), China | |
Penaloza-Murillo, Marcos A.1,2; Pasachoff, Jay M.2 | |
2018-12-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:23页码:13443-13461 |
文章类型 | Article |
语种 | 英语 |
国家 | Venezuela; USA |
英文摘要 | The lack of comprehensive solar radiation monitoring during the longest total solar eclipse of the 21st century at Tianhuangping (Zhejiang), China, on 22 July 2009, has led to this investigation in order to evaluate the cloudiness contribution in estimating the impact on global solar radiation throughout this phenomenon. In doing so, we applied a cloud cover empirical model to obtain the global solar radiation and, at the same time, we deduced a theoretical model to get the direct solar radiation in which both the occultation and obscuration functions of this eclipse are included. We took limb darkening and atmospheric transmission into account. Though the weather during our eclipse observations agreed with the forecasts for that day, clouds and some rain, we were nonetheless able to observe all phases of the eclipse from our observation site at Tianhuangping. This experience suggests that for coming eclipses a record of the in situ observation protocol of cloudiness is mandatory. Our results for comparing global solar radiation models indicate that our total solar eclipse radiation model is quite acceptable and representative of that which could have happened at that time. Plain Language Summary A total solar eclipse is a situation where the Sun is obscured by the Moon viewed from Earth. In this particular arrangement in space a shadow is cast over a particular region. Thus, the ideal circumstances to observe a total solar eclipse are those in which the sky is cloudless in that region or zone. Yet from time to time this phenomenon occurs in the presence of interfering clouds preventing a direct observation of the event. However, under these adverse circumstances effects over the environment can still be felt and measured as, for example, the rapid reduction of solar energy reaching the surface. In that case such measurements would be lacking, but with some information about cloudiness one can have an idea of how the variation of this energy during the eclipse took place. In the procedure a quantitative knowledge of how the Moon disk is going to progressively cut the Sun's brightness during the eclipse is necessary. From an environmental point of view it is shown that a scientific observation of a total solar eclipse matters even though it was made under the influence of blocking clouds. |
英文关键词 | Sun Moon China eclipse solar radiation occultation cloudy skies |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000455285500023 |
WOS关键词 | 11 AUGUST 1999 ; ATMOSPHERE ; IMPACTS ; OZONE ; MODEL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34250 |
专题 | 气候变化 |
作者单位 | 1.Univ Los Andes, Dept Fis, Fac Ciencias, Merida, Venezuela; 2.Williams Coll, Dept Astron, Williamstown, MA 01267 USA |
推荐引用方式 GB/T 7714 | Penaloza-Murillo, Marcos A.,Pasachoff, Jay M.. Cloudiness and Solar Radiation During the Longest Total Solar Eclipse of the 21st Century at Tianhuangping (Zhejiang), China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(23):13443-13461. |
APA | Penaloza-Murillo, Marcos A.,&Pasachoff, Jay M..(2018).Cloudiness and Solar Radiation During the Longest Total Solar Eclipse of the 21st Century at Tianhuangping (Zhejiang), China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(23),13443-13461. |
MLA | Penaloza-Murillo, Marcos A.,et al."Cloudiness and Solar Radiation During the Longest Total Solar Eclipse of the 21st Century at Tianhuangping (Zhejiang), China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.23(2018):13443-13461. |
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