干旱区研究

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2015 , Vol. 32 >Issue 5: 1007 - 1016

DOI: https://doi.org/10.13866/j.azr.2015.05.25

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气象要素对敦煌鸣沙山月牙泉风景区风沙输移的影响

  • 周焕 ,
  • 田禾 ,
  • 屈建军 ,
  • 牛清河 ,
  • 张祎
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  • 1.中国科学院寒区旱区环境与工程研究所敦煌戈壁荒漠研究站/甘肃省风沙灾害防治工程技术研究中心/中国科学院沙漠与沙漠化重点实验室,甘肃 兰州 730000;
    2.中国科学院大学, 北京 100049;
    3.史蒂文斯理工学院,美国 新泽西州 07450;
    4.中国科学院大气物理研究所 大气科学和地球流体力学数值模拟国家重点实验室,北京 100029
周焕(1988-),男,硕士研究生,主要从事风沙物理及气候变化研究.E-mail:racoons@163.com

收稿日期: 2014-05-28

  修回日期: 2014-08-12

  网络出版日期: 2015-10-14

基金资助

国家科技支撑计划项目(2012BAC08B07);国家自然科学基金项目(41271023,41201003)

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Meteorological Effects on the Sand Transport of Mingsha Mountain and Crescent Moon Spring Scenic Area in Dunhuang

  • ZHOU Huan ,
  • TIAN He ,
  • QU Jian-jun ,
  • NIU Qing-he ,
  • ZHANG Yi
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  • 1. Dunhuang Gobi and Desert Ecology and Environment Research Station/Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Stevens Institute of Technology, New Jersey 07450, USA;
    4. State Key Laboratory Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China

Received date: 2014-05-28

  Revised date: 2014-08-12

  Online published: 2015-10-14

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摘要

利用月牙泉及其周边架设的自动气象站观测资料,结合WRF-LES模式模拟月牙泉内山谷风,对该区域风场和输沙进行分析。结果表明:① 敦煌地区盛行西北风、东北风和南风,3种风向相互抵消,使得敦煌的沙丘格局基本稳定。② 月牙泉的风沙运动春夏季较强而秋冬季较弱,外围区域较中心活跃,在流经月牙泉的过程中,起沙风作用时间损失30%~40%,由于能量的分散及地形的阻碍,风向偏折且风速降低,挟沙风中的一部分沙粒被留在了泉内。③ WRF-LES模拟结果显示,月牙泉和它南北两侧的鸣沙山间可产生日夜相反的山谷风,水体和沙漠的比热容差异导致边界层形成高低压的交错分布,从而驱使空气流动形成山谷风。白天的温差更大,谷风的影响大于山风。山谷风的平均风速约为0.767 m·s-1,由月牙泉吹向南北两侧。此外,山谷风能加强泉内挟沙风的风速,使总输沙量增加了8.48%。

关键词： 风场; 输沙量; WRF-LES模式; 山谷风; 月牙泉风景区; 敦煌

本文引用格式

周焕 , 田禾 , 屈建军 , 牛清河 , 张祎 . 气象要素对敦煌鸣沙山月牙泉风景区风沙输移的影响[J]. 干旱区研究, 2015 , 32(5) : 1007 -1016 . DOI: 10.13866/j.azr.2015.05.25

Abstract

Using the data recorded by the automatically meteorological stations around the Crescent Moon Spring, combined with the result of simulating the mountain and valley breezes by WRF-LES model to analyze the wind field and sand transport in this area. The results show that: ① There are three main wind streams in Dunhuang every year. They are northwest wind, northeast wind and south wind. The influence of these three kinds of wind balance out each other, keeping the sand dunes in this area stable;② The sand movement is stronger in spring and summer and more intense in the peripheral region of Crescent Moon Spring. When the winds pass through the Spring, the acting time of sand driving wind will reduce percent 30 to percent 40.The terrain changes the direction of sand driving wind and in the same time the wind energy disperses, the velocity of the wind slows down and the sands in the wind will be left in the valley;③ The simulation results prove that: With only influence of the solar radiation, the wind direction will reverse between day and night in the research field. It’s a phenomenon of down-valley wind. The specific heat capacities of water and sand are different, which makes the temperature of lake and dunes different from each other either in day and night. It forces high pressure and low pressure to appear in the boundary layer. The high pressure and low pressure cause the down-valley wind finally. Between the down-valley wind and mountain wind, the mount wind has larger contribution to the sand transportation. Average velocity of the mountain wind is 0.767 m·s-1, from the lake to both north and south. With the influence of this kind of mountain wind, the total sand discharge from the lake to outside increase percent 8.48.

Key words： wind field; sand transport; WRF-LES model; mountain and valley breezes; Crescent Moon Spring scenic spot; Dunhuang

参考文献

〔1〕 尹念文,魏玉涛.月牙泉的成因分析〔J〕.地下水,2010,32(2):20-22.〔Yin Nianwen,Wei Yutao.Analysis on the causes of Crescent Lake〔J〕.Groud Water,2010,32(2):20-22.〕
〔2〕 岳峰,董霁红,温秀琴.敦煌市月牙泉景观衰退的原因及对策〔J〕.水土保持研究,2007,14(2):200-202.〔Yue Feng,Dong Jihong,Wen Xiuqin.The decadent reason and countermeasure of Crescent Moon Spring view of Dunhuang City〔J〕.Research of Soil and Water Conservation,2007,14(2):200-202.〕
〔3〕 丁宏伟,龚开诚.敦煌月牙泉湖水位持续下降原因及对策分析〔J〕.水文地质工程地质,2005,31(6):74-77.〔Ding Hongwei,Gong Kaicheng.Analyses of the reasons and countermeasures for the decline in the water level of the Yueya Spring Lake near Dunhuang〔J〕.Hydrogeology & Engineering Geology,2005,31(6):74-77.〕
〔4〕 张克存,牛清河,屈建军,等.敦煌鸣沙山月牙泉景区风沙环境分析〔J〕.中国沙漠,2012,32(4):896-900.〔Zhang Kecun,Niu Qinghe,Qu Jianjun,et al.Analysis of wind-blown sand environment in the Singing Sand Mountain & Crescent Moon Spring scenic spot in Dunhuang,China〔J〕.Journal of Desert Research,2012,32(4):896-900.〕
〔5〕 温国胜.敦煌月牙泉风景区风沙活动的初步研究〔J〕.内蒙古林学院学报,1990,2(2):49-54.〔Wen Guosheng.A reliminary study on wind-drift sand activities at Crescent Moon Spring scenic spot in Dunhuang〔J〕.Journal of Inner Mongolia Forestry College,1990,2(2):49-54.〕
〔6〕 杨兴华,何清,阿吉,等.塔克拉玛干沙漠北缘荒漠过渡带风沙流结构特征分析〔J〕.干旱区研究,2012,29(4):699-704.〔Yang Xinghua,He Qing,Ajiguli Shayiti,et al.Study on structure of wind- blown sand flow over the desert ecotone in the northern marginal zone of the Taklimakan Desert〔J〕.Arid Zone Research,2012,29(4):699-704.〕
〔7〕 何清,胡文峰,杨兴华,等.巴丹吉林沙漠拐子湖地区贴地层风速廓线和风沙流结构特征〔J〕.干旱区研究,2012,29(3):517-523.〔He Qing,Hu Wenfeng,Yang Xinghua,et al.Research on wind profile and sand drift structure in Guaizi Lake Region in the Badain Jaran Desert〔J〕.Arid Zone Research,2012,29(3):517-523.〕
〔8〕 张正偲,董治宝,赵爱国,等.沙漠地区风沙活动特征:以中国科学院风沙观测场为例〔J〕.干旱区研究,2007,24(4):550-555.〔Zhang Zhengcai,Dong Zhibao,Zhao Aiguo,et al.Features of sand drift movement in desert:A case study at sand drif t observation stat ion of Chinese Academy of Sciences〔J〕.Arid Zone Research,2007,24(4):550-555.〕
〔9〕 李生宇,雷加强,徐新文,等.塔里木沙漠公路对近地表风沙运动过程的影响〔J〕.干旱区研究,2007,24(2):247-254.〔Li Shengyu,Lei Jiaqiang,Xu Xinwen,et al.Study on the effects of the Tarim Desert highway on the process of blown sand movement near the ground surface〔J〕.Arid Zone Research,2007,24(2):247-254.〕
〔10〕 雷加强,王雪芹,王德.塔里木沙漠公路风沙危害形成研究〔J〕.干旱区研究,2003,20(1):1-6.〔Lei Jiaqiang,Wang Xueqin,Wang De.The formation of the blown sand disaster to the Tarim Desert highway,Xinjiang,China〔J〕.Arid Zone Research,2003,20(1):1-6.〕
〔11〕 张强,周毅.敦煌绿洲夏季典型晴天地表辐射和能量平衡及小气候特征〔J〕.植物生态学报,2002,26(6):717-723.〔Zhang Qiang,Zhou Yi.The characteristics of budget of radiation and energy as well microclimate of Dunhuang oasis on a typical clear day in summer〔J〕.Acta Phytoecologica Sinica,2002,26(6):717-723.〕
〔12〕 张强,曹晓彦.敦煌地区荒漠戈壁地表热量和辐射平衡特征的研究〔J〕.大气科学,2003,27(2):245-254.〔Zhang Qiang,Cao Xiaoyan.The influence of synoptic conditions on the averaged surface heat and radiation budget energy over desert or gobi〔J〕.Chinese Journal of Atmospheric Sciences,2003,27(2):245-254.〕
〔13〕 王胜,张强,卫国安.敦煌绿洲-戈壁过渡带地表辐射与能量特征分析〔J〕.高原气象,2005,24(4):556-562.〔Wang Sheng,Zhang Qiang,Wei Guoan.Analyses on characters of surface radiation and energy at oasis-desert transition zone in Dunhuang〔J〕.Plateau Meteorology,2005,24(4):556-562.〕
〔14〕 Pang Y J,Qu J J,Zhang K C,et al.Quantitative analysis on the dynamic characteristics of megadunes around the Crescent Moon Spring,China〔J〕.Journal of Arid Land,2014,6(3):255-263.
〔15〕 安志山,张克存,屈建军,等.金字塔沙丘近地表流场及其对月牙泉影响研究〔J〕.中国沙漠,2014,34(1):9-15.〔An Zhishan,Zhang Kecun,Qu Jianjun,et al.The near-surface airflow field of pyramid dune and its influence on the Crescent Moon Spring in Dunhuang〔J〕.Journal of Desert Research,2014,34(1):9-15.〕
〔16〕 Zhang K,Qu J,Niu Q,et al.Characteristics of wind-blown sand in the region of the Crescent Moon Spring of Dunhuang,China〔J〕.Environmental Earth Sciences,2013,70(7):3 107-3 113.
〔17〕 Liu B L,Qu J J,Niu Q H,et al.Computational fluid dynamics evaluation of the effect of different city designs on the wind environment of a downwind natural heritage site〔J〕.Journal of Arid Land,2014,6(1):69-79.
〔18〕 王瑾,张镭,王腾蛟,等.兰州附近山谷典型日环流特征对比分析〔J〕.干旱气象,2012,30(2):169-177.〔Wang Jin,Zhang Lei,Wang Tengjiao,et al.Comparative analysis of mountain-valley wind circulation characteristics over semi-arid areas nearby Lanzhou〔J〕.Journal of Arid Meteorology,2012,30(2):169-177.〕
〔19〕 王颖,张镭,胡菊,等.WRF模式对山谷城市边界层模拟能力的检验及地面气象特征分析〔J〕.高原气象,2011,29(6):1 397-1 407.〔Wang Ying,Zhang Lei,Hu Ju,et al.Verification of WRF simulation capacity on PBL characteristic and analysis of surface meteorological characteristic over complex terrain〔J〕.Plateau Meteorology,2011,29(6):1 397-1 407.〕
〔20〕 安志山,张克存,王晓雷,等.敦煌月牙泉风沙环境及沙山动态监测〔J〕.干旱区资源与环境,2013,27(3):115-120.〔An Zhishan,Zhang Kecun,Wang Xiaolei,et al.Dynamic monitoring of sand hill and wind-blown sand environment in the scenic spots of Crescent Moon Spring in Dunhuang,China〔J〕.Journal of Arid Land Resource and Environment,2013,27(3):115-120.〕
〔21〕 Bagnold R A.The physics of blown sand and desert dunes〔J〕.Methuen,1941,10:265.
〔22〕 屈建军,苗天宝,张伟民,等.敦煌莫高窟窟顶沙丘移动的初步研究〔J〕.甘肃地质学报,1995,4(2):87-93.〔Qu Jianjun,Miao Tianbao,Zhang Weimin,et al.A preliminary study of dune movement on the top of Mogao Grottoes,Dunhuang〔J〕.Acta Geologica Gansu,1995,4(2):87-93.〕
〔23〕 凌裕泉.最大可能输沙量的工程计算〔J〕.中国沙漠,1997,17(4):362-368.〔Ling Yuquan.Engineering calculation of maximum possible sand-transporting quantity〔J〕.Journal of Desert Research,1997,17(4):362-368.〕
〔24〕 Wang H,Skamarock W C,Feingold G.Evaluation of scalar advection schemes in the Advanced Research WRF model using large-eddy simulations of aerosol-cloud interactions〔J〕.Monthly Weather Review,2009,137(8):2 547-2 558.
〔25〕 Talbot C,Bou-Zeid E,Smith J.Nested mesoscale large-eddy simulations with WRF:Performance in real test cases〔J〕.Journal of Hydrometeorology,2012,13(5):1 425-1 441.
〔26〕 Liu Y,Warner T,Liu Y,et al.Simultaneous nested modeling from the synoptic scale to the LES scale for wind energy applications〔J〕.Journal of Wind Engineering and Industrial Aerodynamics,2011,99(4):308-319.
〔27〕 涂小萍,姚日升,徐迪峰.WRF 中尺度模式对两个沿浙江近海北上热带气旋的预报分析〔J〕.广东气象,2013,34(5):6-12.〔Tu Xiaoping,Yao Risheng,Xu Difeng.Forecast analysis by WRF model on two tropical cyclones with north track along the Zhejiang coast〔J〕.Guangdong Meteorology,2013,34(5):6-12.〕
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