Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS

The Variations of Atmospheric Precipitable Water over Longitudinal Range-Gorge Region (LRGR) in Southwestern China

  • 1. Yunnan Speciality Meteorological Observatory,Kunming 650034,China;
    2. Meteorological Sciences Institute of Yunnan Province,Kunming 650034,China;
    3. National Climate Center,Beijing 100081,China

Received date: 2007-01-12

  Revised date: 2008-03-27

  Online published: 2008-07-28


In this paper,the multiyear feature and their monthly,seasonal,yearly and interdecadal changes for the air column precipitable water(hereafter PW) over Longitudinal Range-Gorge Region and its surroundings have been analyzed,utilizing the NCEP’s monthly mean specific humidity,wind velocity and potential height reanalyzed grid data and the observed rainfall data.The results show that there exist the considerably monthly,seasonal,yearly and interdecadal changes of the air column PW over the LRGR.It is wetter in the south than that in the north.There are maximum PW in summer and the minimum PW in winter.The air column PW over Yunnan presents approximately a southeast-northwestern U-shaped pattern.The monthly variations of PW show the"corridor-barrier"effect of LRGR.Summer PW shows distinct changes over 25°N, 98.5°E and 106°E.The variation of the summer and winter PW in LRGR is characteristic by both interannual and interdecadal scale.Summer PW underwent a catastrophe in the early 1970s; winter PW underwent a catastrophe in the mid 1950s, the late 1960s and the early 1980s.

Cite this article

WAN Yun-xia, ZHANG Wan-cheng, XIAO Zi-niu . The Variations of Atmospheric Precipitable Water over Longitudinal Range-Gorge Region (LRGR) in Southwestern China[J]. JOURNAL OF NATURAL RESOURCES, 2008 , 23(4) : 657 -664 . DOI: 10.11849/zrzyxb.2008.04.013


[1] Chahine M T.The hydrological cycle and its influence on climate[J].Nature,1992,359(6394):373-380. [2] BAI Jin-yu,XU Xiang-de.Atmospheric hydrological budget with its effects over Tibetan Plateau[J].Journal of Geographical Sciences,2004,14(1):81-86. [3] 黄荣辉,徐予红,周连童.我国夏季降水的年代际变化及华北干旱化趋势[J].高原气象,1999,18(4):465~476.[HUANG Rong-hui,XU Yu-hong,ZHOU Lian-tong.The interdecadal variation of summer precipitations in China and the drought trend in North China.Plateau Meteorology,1999,18(4):465-476.] [4] 周长艳,何金海,等.夏季东亚地区水汽输送的气候特征[J].南京气象学院学报,2005,28(1):380~385.[ZHOU Chang-yan,HE Jin-hai,et al.Climatological characteristics of water vapor transfer over East Asia in summer.Journal of Nanjing Institute of Meteorology,2005,28(1):380-385.] [5] 黄荣辉,张振洲,黄刚,等.夏季东亚季风区水汽输送特征及其与南亚季风区水汽输送的差别[J].大气科学,1998,22(4):460~469.[HUANG Rong-hui,ZHANG Zhen-zhou,HUANG Gang,et al.Characteristics of the water vapor transport in East Asian monsoon region and its difference from that in South Asian monsoon region in summer.Scientia Atmospherica Sinica,1998,22(4):460-469.] [6] 邹进上,刘惠兰.我国平均水汽含量分布的基本特点及其控制因子[J].地理学报,1981,36(4):377~391. [ZOU Jin-shang,LIU Hui-lan.The basic features of distribution of water vapour content and their controlling factors in China.Acta Geographica Sinica,1981,36(4):377-391.] [7] 翟盘茂,周琴芳.中国大气水分气候变化研究[J].应用气象学报,1997,8(3):342~351.[ZAI Pan-mao,ZHOU Qin-fang.Exchange over the Loess Plateau Mesa in China.Quarterly Journal of Applied Meteorology,1997,8(3):342-351.] [8] 蔡英,钱正安,吴统文,等.青藏高原及周围地区大气可降水量的分布变化与各地多变的降水气候[J].高原气象,2004,23(1):1~10.[CAI Ying,QIAN Zheng-an,WU Tong-wen,et al.Distribution,changes of atmospheric precipitable water over Qinghai-Xizang Plateau and its surroundings and their changeable precipitation climate.Plateau Meteorology,2004,23(1):1-10.] [9] 田红,郭品文,等.中国夏季降水的水汽通道特征及其影响因子分析[J].热带气象学报,2004,20(4):401~408.[TIAN Hong,GUO Pin-wen,et al.Characteristics of vapor inflow corridors related to summer rainfall in China and impact factors.Journal of Tropical Meteorology,2004,20(4):401-408.] [10] 张万诚,万云霞,肖子牛.中国西南纵向岭谷区近百年降水的时空变化特征[J].自然资源学报,2006,21(5):802~809.[ZHANG Wan-cheng,WAN Yun-xia,XIAO Zi-niu.The spatio-temporal variations of the longitudinal range-gorge region (LRGR) precipitation in recent 100 years in Southwest China.Journal of Natural Resources,2006,21(5):802-809.