Objective Analysis on Large-scale Circulation Type and Its Links to Precipitation over China
First author:Chen Liang(1982-),male, Pingxiang City, Jiangxi Province, Associate professor. Research areas include regional climate simulation and land-atmosphere interactions.E-mail:chenliang@tea.ac.cn
Received date: 2017-12-01
Revised date: 2018-03-01
Online published: 2018-05-24
Supported by
Project supported by the National Natural Science Foundation of China “Evolution characteristics and dynamic mechanism of extreme temperature events in the southeast of the Qinghai Tibet Plateau over the past 500 years”(No.41471035);The Open fund of Key Laboratory of Land Surface Process and Climate Change in Cold Arid Area of Chinese Academy of Sciences “Influence of land-atmosphere coupling intensity on regional climate in arid regions of Northwest China”(No.LPU2017001).
Copyright
Atmospheric circulation anomaly is a direct cause of weather and climate change. In the past, most researches for the relationship between Weather Type (WT) and precipitation have mainly focused on the subjective classification and diagnosis. Compared to the subjective analysis, objective classification uses more consistent index and standard unification, thus, we can get more WTs, and it has been widely used in many areas. By using daily 12UTC Sea Level Pressure (SLP), Precipitable Water (PW), and 700 hPa wind speed (UV700) data from ECMWF’s Interim Reanalysis, the classification of WTs over China was performed with the method of obliquely rotated T-mode principle component analysis. WT and its link to precipitation over China were further analyzed. The results show that the influence of different WTs on precipitation is not uniform over China, and also show distinctly difference in different seasons. A common feature is that WTs great impact on the regions and months with large precipitation, while less impact on regions and months have with less precipitation. In addition, precipitation trends originating from WT intensity changes are much more deterministic, significant, and predictable than trends from WT frequency changes.
Liang Chen , Jianping Duan , Zhuguo Ma . Objective Analysis on Large-scale Circulation Type and Its Links to Precipitation over China[J]. Advances in Earth Science, 2018 , 33(4) : 396 -403 . DOI: 10.11867/j.issn.1001-8166.2018.04.0396
| [1] | Li Chongyin.An Introduction of Climate Dynamics (2nd Edition)[M]. Beijing: China Meteorological Press, 2000:27. |
| [1] | [李崇银. 气候动力学引论(第二版)[M]. 北京:气象出版社,2000:27.] |
| [2] | Zuo Hongchao, Lü Shihua, Hu Yinqiao.Variations trend of yearly mean air temperature and precipitation in China in the last 50 years[J]. Plateau Meteorology, 2004, 23(2): 238-244. |
| [2] | [左洪超, 吕世华, 胡隐樵.中国近50年气温及降水量的变化趋势分析[J].高原气象,2004,23(2):238-244.] |
| [3] | Zhou Liantong, Huang Ronghui.Research on the characteristics of interdecadal variability of summer climate in China and its possible cause[J]. Climate and Environmental Research, 2003, 8(3): 274-290. |
| [3] | [周连童,黄荣辉. 关于我国夏季气候年代际变化特征及其可能成因的研究[J].气候与环境研究, 2003, 8(3):274-290.] |
| [4] | Kwon M, Jhun J, Ha K.Decadal change in east Asian summer monsoon circulation in the mid-1990s[J]. Geophysical Research Letters, 2007, 34(21):377-390. |
| [5] | Zhu Y, Wang H, Zhou W, et al. Recent changes in the summer precipitation pattern in East China and the background circulation[J]. Climate Dynamics, 2011, 36(7/8):1 463-1 473. |
| [6] | Lu Riyu.Linear relationship between the interdecadal and interannual variabilities of North China rainfall in rainy season[J]. Chinese Science Bulletin, 2003, 48(10):1 040-1 044. |
| [6] | [陆日宇. 华北汛期降水量年代际和年际变化之间的线形关系[J]. 科学通报,2003,48(7):718-722.] |
| [7] | Huang Ronghui, Chen Jilong, Liu Yong.Interdecadal variation of the leading modes of summertime precipitation anomalies over eastern China and its association with water vapor transport over East Asia[J]. Chinese Journal of Atmospheric Sciences, 2011,35(4): 589-606. |
| [7] | [黄荣辉,陈际龙,刘永. 我国东部夏季降水异常主模态的年代际变化及其与东亚水汽输送的关系[J]. 大气科学,2011,35(4):589-606.] |
| [8] | Gong D Y, Ho C H.Shift in the summer rainfall over the Yangtze River valley in the late 1970s[J]. Geophysical Research Letters, 2002, 29(10):1 436. |
| [9] | Cahynová M, Huth R.Circulation vs. climatic changes over the Czech Republic: A comprehensive study based on the COST733 database of atmospheric circulation classifications[J]. Physics and Chemistry of the Earth (Parts A/B/C), 2010, 35(9/12): 422-428. |
| [10] | Huth R.Synoptic-climatological applicability of circulation classifications from the COST733 collection: First results[J]. Physics & Chemistry of the Earth, 2010, 35(9/12):388-394. |
| [11] | Huth R, Beck C, Philipp A, ,et al. Classifications of atmospheric circulation patterns[J]. Annals of the New York Academy of Sciences. Classifications of atmospheric circulation patterns[J]. Annals of the New York Academy of Sciences, 2008, 1 146(1): 105-152. |
| [12] | Huth R.An example of using obliquely rotated principal components to detect circulation types over Europe[J]. Meteorologische Zeitschrift, 1993, 2: 285-293. |
| [13] | Huth R.An intercomparison of computer-assisted circulation classification methods[J]. International Journal of Climatology, 1996, 16(8): 893-922. |
| [14] | Huth R.Properties of the circulation classification scheme based on the rotated principal component analysis[J]. Meteorology and Atmospheric Physics, 1996, 59(3/4): 217-233. |
| [15] | Philipp A, Bartholy J, Beck C, et al. Cost733cat—A database of weather and circulation type classifications[J]. Physics and Chemistry of the Earth (Parts A/B/C), 2010, 35(9/12): 360-373. |
| [16] | Dee D, Uppala S, Simmons A, et al. The ERA-Interim reanalysis: Configuration and performance of the data assimilation system[J]. Quarterly Journal of the Royal Meteorological Society, 2011, 137(656): 553-597.DOI:10.1002/qj.828. |
/
| 〈 |
|
〉 |
甘公网安备62010202000687
