MA longtengfei,SONG Minhong,ZHANG Shaobo,et al.Numerical Experiments of Thermal Variation on Primary Precipitation in Qinghai-Tibet Plateau[J].Journal of Chengdu University of Information Technology,2024,39(01):93-100.[doi:10.16836/j.cnki.jcuit.2024.01.014]
青藏高原感热变化对一次降水过程的数值实验
- Title:
- Numerical Experiments of Thermal Variation on Primary Precipitation in Qinghai-Tibet Plateau
- 文章编号:
- 2096-1618(2024)01-0093-08
- 分类号:
- P426
- 文献标志码:
- A
- 摘要:
- 为探讨青藏高原地表感热通量对高原降水的影响,利用NCEP FNL再分析资料、全国范围日值降水格点资料和中尺度天气模式(WRF),对2016年6月下旬至7月上旬青藏高原上一次高原低涡系统东移引起的降水过程进行感热通量变化的敏感性模拟实验,通过对比分析探讨高原地表感热输送的变化对高原低涡系统东移和降水的影响。结果表明,在那曲附近生成并东移至高原东侧的低涡系统平均强度受高原地表感热加热的影响增加12%左右,引发的高原区域总降水强度增加53%左右。从高原东侧沿着长江流域东移至江苏地区的低涡系统平均强度受高原地表感热加热的影响增加21%左右,在东移区域引发的总降水强度增加23%左右。此低涡系统引发的第一次降水峰值发生在四川盆地东侧,高原地表感热加热使经向降水范围增加; 第二次降水峰值发生在长江流域中上游,高原地表感热加热使降水峰值区域从零星变为连续; 高原地表感热加热使此低涡系统入海前引发的江苏地区降水范围大幅增加。
- Abstract:
- To explore the impact of surface sensible heat flux on plateau precipitation on the Tibetan Plateau, a sensitivity simulation experiment of sensible heat flux changes was conducted for the precipitation process caused by an eastward shift of a plateau low vortex system on the Tibetan Plateau from late June to early July 2016 using NCEP FNL reanalysis data, nationwide daily precipitation grid data, and the mesoscale weather model(WRF). A comparative analysis was performed to investigate the influence of plateau surface properties. The results show that the average intensity of the low eddy system generated near Nagqu and moving eastward to the eastern side of the plateau is increased by about 12% by the influence of the surface sensible heating of the plateau, and the total precipitation intensity triggered by the plateau region is increased by about 53%. The mean intensity of the low vortex system, moving eastward from the plateau through the Yangtze River basin to the Jiangsu area, was influenced by the surface sensible heating of the plateau resulting in an increase of about 21%. The total precipitation intensity in the eastward region was enhanced by around 23%. The first peak of precipitation caused by this low vortex system occurred in the east of the Sichuan basin. The surface sensible heating of the plateau extended the radial precipitation range. The second peak of precipitation occurred in the middle and upper reaches of the Yangtze River basin, and the surface sensible heating of the plateau changes the peak precipitation area from sporadic to continuous. Additionally, the surface sensible heating of the plateau significantly expanded the precipitation range in the Jiangsu region caused by this low vortex system before it reached the sea.
参考文献/References:
[1] 叶笃正,高由禧. 青藏高原气象学[M].北京:科学出版社,1979:115-126.
[2] 董元昌,李国平.大气能量学揭示的高原低涡个例结构及降水特征[J].大气科学,2015(6):1136-1148.
[3] Li L,Zhang R H,Wen M.Diurnal variation in the intensity of nascent Tibetan Plateau vortices[J].Quart.J.Roy.Meteor.Soc.2018,144(717):2524-2536.
[4] 李国平,卢会国,黄楚惠,等.青藏高原夏季地面热源的气候特征及其对高原低涡生成的影响[J].大气科学,2016,40(1):131-141.
[5] Zhang P,Li G P,Fu X,et al.Clustering of Tibetan Plateau vortices by 10-30-day intraseasonal oscillation[J].Monthly Weather Review,2014,142(1):290-300.
[6] 刘云丰,李国平.夏季高原大气热源的气候特征以及与高原低涡生成的关系[J].大气科学,2016,40(4):864-876.
[7] Feng X,Liu C,Fan G,et al.Analysis of the structure of different Tibetan Plateau vortex types[J].Journal of Meteorological Research,2017,31(3):514-529.
[8] Curio J,Schiemann R,Hodges K I,et al.Climatology of Tibetan Plateau vortices in reanalysis data and a high-resolution global climate model[J].Journal of Climate,2019,32(6):1933-1950.
[9] Li,L,R H Zhang, M Wen,et al.Effect of the atmospheric heat source on the development and eastward movement of the Tibetan Plateau vortices.Tellus A:Dynamic Meteorology and Oceanography,2014(66),24451.
[10] Wang X,Y Q Li,S H Yu,et al.Statistical study on the plateau low vortex activities[J].Plateau Meteorology,2009(28):64-71.
[11] 董元昌,李国平.大气能量学揭示的高原低涡个例结构及降水特征[J].大气科学,2015(6):1136-1148.
[12] 黄楚惠,李国平,牛金龙,等.近30年夏季移出型高原低涡的气候特征及其对我国降雨的影响[J].热带气象学报,2015,31(6):827-838.
[13] 马婷,刘屹岷,吴国雄,等.青藏高原低涡形成、发展和东移影响下游暴雨天气个例的位涡分析[J]. 大气科学,2020,44(3):475-478.
[14] Zhang,G S,J Y Mao,G X Wu,et al.Impact of potential vorticity anomalies around the eastern Tibetan Plateau on quasibiweekly oscillations of summer rainfall within and south of the Yangtze Basin in 2016[J].Climate Dyn,2021(56):813-835.
[15] Shao X L,S L Li,N Liu,et al.The MaddenJulian oscillation during the 2016 summer and its possible impact on rainfall in China[J].International Journal of Climatology,2018(38):2575-2589.
[16] Zhou C,K C Wang,D Qi.Attribution of the July 2016 extreme precipitation event over China’s Wuhang.Bull.Amer.Meteor.Soc.,99,2018:S107-S112.
[17] Ertel H.A new hydrodynamical vorticity equation[J].Meteorologische Zeitschrift,1942(59):277-281.
[18] 田珊儒,段安民,王子谦,等.地面加热与高原低涡和对流系统相互作用的一次个例研究[J].大气科学,2015,39(1):125-136.
[19] 许威杰,张耀存.凝结潜热加热与对流反馈对一次高原低涡过程影响的数值模拟[J].高原气象,2017,36(3):763-775.
[20] Hong S Y,Lim J O J.The WRF single-moment 6-class microphysics scheme(WSM6)[J].Asia-Pacific Journal of Atmospheric Sciences,2006,42(2):129-151.
[21] Janjicz I.The step-mountain eta coordinate model:Further developments of the convection,viscous sublayer,and turbulence closure schemes[J].Monthly Weather Review,1994,122(5):927-945.
[22] Chen F,Dudhia J.Coupling an advanced land surface hydrology model with the Penn State-NCAR MM5 modeling system.Part I: Model implementation and sensitivity[J].Monthly Weather Review,2001,129:569-585.
[23] Hong S Y,Noh Y,Dudhia J.A new vertical diffusion package with an explicit treatment of entrainment processes[J].Monthly Weather Review,2006,134(9):2318-2341.
[24] Iacono M J,Delamere J S,Mlawer E J,et al.Radiative forcing by long-lived greenhouse gases:Calculations with the AER radiative transfer models[J].Journal of Geophysical Research:Atmospheres,2008,113(D13103),200.
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备注/Memo
收稿日期:2023-02-22
基金项目:第二次青藏高原综合科学考察研究资助项目(2019QZKK0103)