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(1):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.
相似文献/References:
[1]梁家豪,陈科艺,李 毓.WRF模式中积云对流参数化方案对南海土台风“Ryan”模拟的影响研究[J].成都信息工程大学学报,2019,(02):162.[doi:10.16836/j.cnki.jcuit.2019.02.010]
LIANG Jiahao,CHEN Keyi,LI Yu.The Impact of Different Cumulus Parameterization Schemes of the WRF
Model on the Typhoon “Ryan” Simulation over the South China Sea[J].Journal of Chengdu University of Information Technology,2019,(1):162.[doi:10.16836/j.cnki.jcuit.2019.02.010]
[2]苏传程,毛文书,师春香,等.多种降水融合产品对“苏迪罗”台风的监测效果对比[J].成都信息工程大学学报,2016,(06):614.
SU Chuan-cheng,MAO Wen-shu,SHI Chun-xiang,et al.Assessment of the Rainfall Monitoring of Typhoon
Soudelor by Multiple Precipitation Products[J].Journal of Chengdu University of Information Technology,2016,(1):614.
[3]李肇洁,曾胜兰.基于WRF模式的成都地区热岛效应的模拟研究[J].成都信息工程大学学报,2016,(06):629.
LI Zhao-jie,ZENG Sheng-lan.The Research of Heat Island Effect in Chengdu based on WRF Model[J].Journal of Chengdu University of Information Technology,2016,(1):629.
[4]李昕翼,王瑜娉,汪 玲.一次低涡型成都大暴雨的分析研究[J].成都信息工程大学学报,2017,(增刊1):8.
[5]钟兰頔,朱克云,王炳赟,等.陡峭地形特大暴雨的雷达资料变分同化试验研究[J].成都信息工程大学学报,2017,(02):165.[doi:10.16836/j.cnki.jcuit.2017.02.010]
ZHONG Lan-di,ZHU Ke-yun,WANG Bing-yun,et al.An Analytical Study on the Radar Assimilation of
Extraordinary Rainstorm under Steep Terrain[J].Journal of Chengdu University of Information Technology,2017,(1):165.[doi:10.16836/j.cnki.jcuit.2017.02.010]
[6]彭 敏,巩远发,纪 策,等.新疆昌吉州一次极端暴雨天气过程分析及数值模拟[J].成都信息工程大学学报,2017,(05):537.[doi:10.16836/j.cnki.jcuit.2017.05.012]
PENG Min,GONG Yuan-fa,JI Ce,et al.Xinjiang Changji once Extreme Storm Weather Process
Analysis and Numerical Simulation in June 9, 2016[J].Journal of Chengdu University of Information Technology,2017,(1):537.[doi:10.16836/j.cnki.jcuit.2017.05.012]
[7]程志刚,孙 晨,毛晓亮,等.城市化对成都地区夏季气候变化影响的数值模拟研究[J].成都信息工程大学学报,2016,(04):386.
CHENG Zhi-gang,SUN Chen,MAO Xiao-liang,et al.Simulation of the Impact of Urbanization on
Summer Climate in Chengdu[J].Journal of Chengdu University of Information Technology,2016,(1):386.
[8]高志博,周筠珺,尹舒悦,等.成都地区一次超级单体风暴的观测分析与数值模拟[J].成都信息工程大学学报,2019,(04):392.[doi:10.16836/j.cnki.jcuit.2019.04.012]
GAO Zhibo,ZHOU Yunjun,YIN Shuyue,et al.A Mesoscale Numerical Simulation of a Supercell Storm in Chengdu Area[J].Journal of Chengdu University of Information Technology,2019,(1):392.[doi:10.16836/j.cnki.jcuit.2019.04.012]
[9]陈玉蓉,宋美洋,侯劭禹,等.高原和盆地间山谷风对四川霾日变化的影响分析[J].成都信息工程大学学报,2019,(04):443.[doi:10.16836/j.cnki.jcuit.2019.04.018]
CHEN Yurong,SONG Meiyang,HOU Shaoyu,et al.Analysis of the Influence of Mountain-basin Wind between Plateau andBasin on the Diurnal Variations of Haze in Sichuan Province[J].Journal of Chengdu University of Information Technology,2019,(1):443.[doi:10.16836/j.cnki.jcuit.2019.04.018]
[10]张 瑜,曾胜兰,李肇洁,等.创新科技城对局地气候舒适性影响的数值试验[J].成都信息工程大学学报,2019,(06):640.[doi:10.16836/j.cnki.jcuit.2019.06.013]
ZHANG Yu,ZENG Shenglan,LI Zhaojie,et al.Numerical Experiments on the Impact of Innovation and Technology City on Regional Climate Comfort[J].Journal of Chengdu University of Information Technology,2019,(1):640.[doi:10.16836/j.cnki.jcuit.2019.06.013]
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)