Long-term analysis of clear nights using satellite data considering astronomical sites in western China | |
Cao, Zi-Huang2,3; Liu, Li-Yong2; Zhao, Yong-Heng2,3; Feng, Lu2; Jones, Hugh R. A.1; Shen, Huang5; Hao, Jin-Xin2; Xue, Yan-Jie2; Yao, Yong-Qiang2; Xu, Jing3,6 | |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS |
2020-06-01 | |
卷号 | 20期号:6页码:81 |
关键词 | methods statistical site testing atmospheric effects MODIS |
ISSN号 | 1674-4527 |
DOI | 10.1088/1674-4527/20/6/81 |
产权排序 | 6 |
英文摘要 | A large ground-based optical/infrared telescope is being planned for a world-class astronomical site in China. The cloud-free night percentage is the primary meteorological consideration for evaluating candidate sites. The data from GMS and NOAA satellites and the MODIS instrument were utilized in this research, covering the period from 1996 to 2015. Our data analysis benefits from overlapping results from different independent teams as well as a uniform analysis of selected sites using GMS+NOAA data. Although significant ground-based monitoring is needed to validate these findings, we identify three different geographical regions with a high percentage of cloud-free conditions (similar to 83% on average), which is slightly lower than at Mauna Kea and Cerro Armazones (similar to 85% on average) and were chosen for the large international projects TMT and ELT respectively. Our study finds evidence that cloud distributions and the seasonal changes affected by the prevailing westerly winds and summer monsoons reduce the cloud cover in areas influenced by the westerlies. This is consistent with the expectations from climate change models and is suggestive that most of the identified sites will have reduced cloud cover in the future. |
URL标识 | 查看原文 |
资助项目 | Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments, budgeted from the Ministry of Finance of China (MOF) ; National Natural Science Foundation of China[11573054] ; National Natural Science Foundation of China[11703065] ; National Natural Science Foundation of China[11603044] ; National Natural Science Foundation of China[11873081] ; CAS PIFI ; UK STFC[ST/R006598/1] |
WOS关键词 | COVER CHANGES ; MODIS ; SKY |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
WOS记录号 | WOS:000545664700001 |
资助机构 | Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments, budgeted from the Ministry of Finance of China (MOF) ; National Natural Science Foundation of China ; CAS PIFI ; UK STFC |
内容类型 | 期刊论文 |
源URL | [http://ir.xao.ac.cn/handle/45760611-7/3571] |
专题 | 新疆天文台_光学天文与技术应用研究室 |
通讯作者 | Cao, Zi-Huang |
作者单位 | 1.Univ Hertfordshire, Ctr Astrophys, Hatfield, Herts, England 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 5.Commun Univ China, Sch Journalism, Beijing 100024, Peoples R China 6.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 7.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China |
推荐引用方式 GB/T 7714 | Cao, Zi-Huang,Liu, Li-Yong,Zhao, Yong-Heng,et al. Long-term analysis of clear nights using satellite data considering astronomical sites in western China[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(6):81. |
APA | Cao, Zi-Huang.,Liu, Li-Yong.,Zhao, Yong-Heng.,Feng, Lu.,Jones, Hugh R. A..,...&Tao, Yi-Han.(2020).Long-term analysis of clear nights using satellite data considering astronomical sites in western China.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(6),81. |
MLA | Cao, Zi-Huang,et al."Long-term analysis of clear nights using satellite data considering astronomical sites in western China".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.6(2020):81. |
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