Cloudiness variations over the qinghai-tibet plateau during 1971-2004
文献类型：期刊论文
| 作者 | Zhang Xueqin1; Peng Lili1,2; Zheng Du1; Tao Jie1,2 |
| 刊名 | Journal of geographical sciences
 |
| 出版日期 | 2008-05-01 |
| 卷号 | 18期号:2页码:142-154 |
| 关键词 | Qinghai-tibet plateau Total cloud amount Spatio-temporal variation Forcing |
| ISSN号 | 1009-637X |
| DOI | 10.1007/s11442-008-0142-1 |
| 通讯作者 | Zhang xueqin(zhangxq@igsnrr.ac.cn) |
| 英文摘要 | With empirical orthogonal function (eof) and trend analysis method adopted, the spatio-temporal variation of total cloud amount is analyzed for 75 stations on the qinghai-tibet plateau during the period 1971-2004. analysis indicates that the total cloud amount decreases from the southeast to the northwest of the plateau, and that the annual and seasonal variations in total cloud amount both show an apparent declining tendency over the past decades. correlation analysis demonstrates that the total cloud amount is negative with sunshine duration and diurnal temperature range (dtr), and is positive with precipitation and the relative humidity, respectively. the negative correlation is consistent with the radiative effect of cloud, while the positive correlation between total cloud amount and precipitation is obscured because of the influence of topographic factors. discussion implies that the decrease of total cloud amount is possibly due to the variation of atmospheric aerosol content and ozone concentration over the plateau, although it is difficult to quantify the driving force mechanism up to now. |
| WOS关键词 | MINIMUM TEMPERATURE ; AEROSOLS ; CLIMATE ; TRENDS ; MAXIMUM ; SURFACE ; CLOUDS ; CHINA |
| WOS研究方向 | Physical Geography |
| WOS类目 | Geography, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000254970800002 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2392480 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang Xueqin |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Xueqin,Peng Lili,Zheng Du,et al. Cloudiness variations over the qinghai-tibet plateau during 1971-2004[J]. Journal of geographical sciences,2008,18(2):142-154. |
| APA | Zhang Xueqin,Peng Lili,Zheng Du,&Tao Jie.(2008).Cloudiness variations over the qinghai-tibet plateau during 1971-2004.Journal of geographical sciences,18(2),142-154. |
| MLA | Zhang Xueqin,et al."Cloudiness variations over the qinghai-tibet plateau during 1971-2004".Journal of geographical sciences 18.2(2008):142-154. |
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来源：中国科学院大学
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