Comparative Analysis of Mountain － valley Wind Circulation Characteristics over Semi － arid Areas Nearby Lanzhou

Abstract

Abstract:

The characteristics of local circulation in the urban area of Lanzhou and the Semi － Arid Climate and Environment Observatory of Lanzhou University ( SACOL) was simulated by using weather research and forecasting ( WRF) model，and the effects of different valley types on diurnal variations of local circulation on May 1，2010 were analyzed． Simulation results show that the starting /ending time of the typical closing valley and open valley wind is 13: 00 /18: 00 and 16: 00 /18: 00，respectively，the starting time of the closing valley wind is 3 hours earlier than that of the open valley，which demonstrated that the typical terrain of the closing valley could strengthen the thermodynamic circulation and maintain it． At 16: 00，boundary layer height over the bottom of the closing valley and open valley is 500 m and 900 m，and that over the slope is 3 500 m and 3 300 m，respectively． The data show that valley wind increases the convective boundary layer height over the slope and the subsidence flow over valley sinks the boundary layer height over the bottom of the valley． The feature of the starting /ending time and the development of boundary layer height indicate that the depth of closing valley wind is deeper than the open valley wind and the closing valley wind is more significant．

Key words: closing and open valley, WRF simulation, comparative analysis, semi － arid areas nearby Lanzhou, mountain － valley wind of typical date

摘要：

利用中尺度数值预报模式( WRF) 对兰州市区和兰州大学半干旱气候与环境观测站( SACOL)山谷地区典型日山谷风环流特征进行模拟研究，比较分析了不同构造的山谷对山谷风环流日变化特征的影响。结果表明，封闭型和开放型山谷谷风环流起止时间分别为13: 00 /18: 00 和16: 00 /18: 00，封闭型谷风起始时间比开放型早3 h 且持续时间长3 h，表明封闭型山谷的典型地形条件会加强由热力因素强迫产生的热力环流并能长时间维持此环流; 16: 00 封闭型和开放型山谷中边界层高度分别为500 m 和900 m，山坡上边界层高度分别为3 500 m 和3 300 m，表明吹向山坡的谷风使山坡上对流边界层高度升高，而山谷上空的下沉气流使山谷中边界层高度降低。从边界层发展高度可知封闭型山谷形成的谷风环流比开放型山谷的环流发展厚度大且特征显著。

关键词: 典型日环流, 封闭型与开放型山谷, WRF 模拟, 对比分析, 半干旱区兰州附近

CLC Number:

P425． 4 + 1

王瑾，张镭，王腾蛟，鲍婧，曹贤洁，张北斗，周忠玉. 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.

References

［1］Defant F． Local Winds［M］． Compendium of Meteorology，American

Meteorological Society， 1951． 655 － 672．

［2］Oke T R． Boundary Layer Climates［M］． Methuen，London and New

York，1987． 435．

［3］Whiteman C D． Observations of thermally developed wind systems in

mountainous terrain， in: Atmospheric Processes over Complex Terrain

［A］． In W． Blumen， ed．，Atmospheric Processes over Complex

Terrain，Meteorological Monographs，1990， 23( 45) : 5 － 42．

［4］ Davidson B，Rao P K． Experimental studies of the valley － plain

wind［J］． Int J Air Water Pollut， 1963，7

: 907 － 923．

［5］Gudiksen P H，Leone J M，King C W， et al． Measurements and modeling

of the effects of ambient meteorology on nocturnal drainage

flows［J］． J Appl Meteor，1992， 31: 1023 － 1032．

［6］孙方林，马耀明．珠穆朗玛峰北坡地区河谷局地环流特征观测分

析［J］．高原气象，2

007， 26( 6) : 1187 － 1190．

［7］Arritt R W，Pielke R A． Interactions of nocturnal slope flows with

ambient winds［J］． Boundary － Layer Meteorology，1986，3

7: 183 －

195．

［8］Gross G． Some effects of deforestation on nocturnal drainage flow and

local climate － a numerical study［J］． Boundary － Layer Meteorology，

1987， 38: 315 － 337．

［9］Barr，Orgill M M． Influence of external meteorology on nocturnal

valley drainage winds［J］． J Appl Meteor， 1989，2

8: 497 － 517．

［10］Clements W E，Archuleta J A Hoard D E． Mean structure of the

nocturnal drainage flow in a deep valley［J］． J Appl Meteor，1989，

28: 457 － 462．

［11］Doran J C． The effects of ambient winds on valley drainage flows

［J］． Bound － Layer Meteor，1991，5

5: 177 － 189．

［12］张耀存．植被对山谷风环流形成与演变过程影响的数值试验

［J］．气象科学， 1995， 15( 3) : 245 － 253．

［13］Thyer N H． A theoretical explanation of mountain and valley winds

by a numerical method［J］． Arch Meteor Geophys Bioklim，1966，

15: 318 － 348．

［14］Mannouji N． A Numerical Experiment on the Mountain and Valley

Winds［J］． J Meteorol Sot Japan，1982， 60: 1085 － 1105．

［15］ McNider R T，Pielke R A． Numerical Simulation of Slope and

Mountain Flows［J］． J Appl Meteorol，1984，2

3: 1441 － 1453．

［16］ Schmidli J，Billings B，Chow F K，et al． Intercomparison of mesoscale

model simulations of the daytime valley wind system［J］．

Monthly Weather Review，2011，1

39: 1389 － 1409．

［17］蒲朝霞，邱崇践．兰州地区山谷风环流的二维数值模拟［J］．

兰州大学学报( 自然科学版) ，1

991，2

7( 2) : 169 － 175．

［18］邱崇践，蒲朝霞．山谷风环流控制下的大气污染物输送和扩散

过程: 二维数值模拟研究［J］．高原气象，1991，10 ( 4) : 362 －

370．

［19］Pérez － Landa G，Clals P，Sanz M J， et al． Mesoscale circulations over

complex terrain in the Valencia coastal region，Spain － Part 1:

Simulation of diurnal circulation regimes［J］． Atmos Chem Phys，

2007，7

: 1835 － 1849．

［20］Yi C，Monson R K，Zhai Z， et al． Modeling and measuring the nocturnal

drainage flow in a high － elevation，subalpine forest with

complex terrain［J］． J Geophys Res， 2005，1

10，D22303．

［21］高艳红，吕世华．非均匀下垫面局地气候效应的数值模拟［J］．

高原气象， 2001， 20( 4) : 354 － 361．

［22］刘树华，刘振鑫，李炬，等．京津冀地区大气局地环流耦合效应

的数值模拟［J］．中国科学( D 辑) ，2

009，3

9( 1) : 88 － 98．

［23］安兴琴，陈玉春，吕世华．中尺度模式对冬季兰州市低层风场和

温度场的数值模拟［J］．高原气象， 2002， 21( 2) : 186 － 192．

［24］ Shimada S，Ohsawa T． Accuracy and Characteristics of Offshore

Wind Speeds Simulated by WRF［J］． SOLA，2011，7

: 021 － 024．

［25］Ma M J，Pu Z X，Wang S G，et al． Characteristics and Numerical

Simulations of Extremely Large Atmospheric Boundary － layer

Heights over an Arid Region in North － west China［J］． Boundary

－ Layer Meteorol，2011，1

40: 163 － 176．

［26］ Catalano F，Moeng C H． Large － eddy simulation of the daytime

boundary layer in an idealized valley using the weather research

and forecasting numerical model［J］． Boundary － Layer Meteorol，

2010， 137: 49 － 75．

［27］ Rampanelli G，Zardi D，Rotunno R． Mechanisms of up － valley

winds［J］． J Atmos Sci， 2004，6

1: 3097 － 3111．

［28］王澄海，胡菊，靳双龙，等．中尺度WRF 模式在西北西部地区

低层风场模拟中的应用和检验［J］．干旱气象，2011，29 ( 2) :

161 － 167．

［29］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，2

010，2

9( 6) : 1397 －

1407．

［30］缪国军，张镭，舒红，等．利用WRF 对冬季大气边界层的数值

模拟［J］．气象科学，2

007， 27( 2) : 169 － 175．

［31］Hong S Y，Noh Y，Dudhia J． A new vertical diffusion package with

explicit treatment of entrainment processes［J］． Mon Wea Rev，

2006，1

34: 2318 － 2341．

［32］ Mlawer E J． Radiative transfer for inhomogeneous atmosphere:

RRTM，a validated correlated － k model for the long － wave［J］． J

Geophys Res，1997， 102( D14) : 16663 － 16682．

［33］Dudia J． Numerical study of convection observed during the winter

monsoon experiment using a mesoscale two － dimensional model

［J］． J Atmos Sci，1997，46: 3077 － 3107．

［34］Louis J － F． A parametric model of vertical eddy fluxes in the atmosphere

［J］． Boundary － Layer Meteorology，1979，1

7( 2) : 187 －

202．

［35］Heffter J L． Transport layer depth calculations［A］． In: Proceedings

of the 2nd joint conference on applications of air pollution

modeling［C］． American Meteorological Society，1980． 787 － 791．

［36］Marsik F J，Fischer K W，McDonald T D，et al． Comparison of

methods for estimating mixing height used during the 1992 Atlanta

eld intensive［J］． J Appl Meteorol，1995，3

4: 1802 － 1814．

［37］Kossmann M，V gtlin R，Corsmeier U， et al． Aspects of the convective

boundary layer structure over complex terrain［J］． Atmos Environ，

1998，3

2: 1323 － 1348．

［38］Kalthoff N，Binder H J，Kossmann M， et al． Temporal evolution and

spatial variation of the boundary layer over complex terrain［J］． Atmos

Environ，1998，3

2: 1179 － 1194．

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