Weather at selected astronomical sites - an overview of five atmospheric parameters
文献类型：期刊论文
| 作者 | Hellemeier, Joschua A.2; Yang, Rui2,3; Sarazin, Marc1; Hickson, Paul2,4 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 482期号:4页码:4941-4950 |
| 关键词 | atmospheric effects site testing |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/sty2982 |
| 英文摘要 | Weather has a critical impact on observations at optical and infrared wavelengths, and is a key factor in assessing the performance and productivity of future facilities. As a reference for comparison, we present an analysis of cloud cover, 200-hPa wind speed, precipitable water vapour, vertical wind velocity, and aerosol index, for 15 observatory sites around theworld. Our study employs ERA-40 and Total Ozone Mapping Spectrometer climatological data covering a 45-yr time period. We have examined this data set for long-term trends. Several sites are found to show significant long-term changes in some parameters, possibly due to climate change. Four sites show significant increases in cloud cover (99 per cent confidence level). Four sites show changes in 200-hPa wind speed. Eight sites show increases or decreases in precipitable water vapour. The largest changes are found for Antarctic sites, which have clear trends of increasing cloud cover and water vapour. These results should help to characterize the relative astronomical potential of the sites and highlight the influence of both seasonal variations and long-term trends. |
| WOS关键词 | VERTICAL-DISTRIBUTION ; TURBULENCE ; AIR ; SCINTILLATION ; RESOLUTION ; LONG ; MASS |
| 资助项目 | Natural Sciences and Engineering Research Council of Canada ; Chinese Academy of Sciences[2017VMA0013] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000462327300046 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; Chinese Academy of Sciences ; Chinese Academy of Sciences |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/25654]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Hellemeier, Joschua A. |
| 作者单位 | 1.European Southern Observ, Karl Schwarzschild Str 2, D-8046 Garching, Germany 2.Univ British Columbia, Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada 3.Yunnan Univ, Sch Phys & Astron, 2 North Cuihu Rd, Kunming 650091, Yunnan, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hellemeier, Joschua A.,Yang, Rui,Sarazin, Marc,et al. Weather at selected astronomical sites - an overview of five atmospheric parameters[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,482(4):4941-4950. |
| APA | Hellemeier, Joschua A.,Yang, Rui,Sarazin, Marc,&Hickson, Paul.(2019).Weather at selected astronomical sites - an overview of five atmospheric parameters.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,482(4),4941-4950. |
| MLA | Hellemeier, Joschua A.,et al."Weather at selected astronomical sites - an overview of five atmospheric parameters".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 482.4(2019):4941-4950. |
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来源：国家天文台
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