不同陸面方案對滬寧高速公路團(tuán)霧的模擬

doi:10.3969/2012jms.00**

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不同陸面方案對滬寧高速公路團(tuán)霧的模擬
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                        10.3969/2012jms.00**
                    
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中圖分類號:P412
基金項(xiàng)目:中國氣象局氣象新技術(shù)推廣項(xiàng)目（CMATG2006M30）

Simulation of the dumpling fog on the Nanjing-Shanghai Expressway based on different land-surface schemes

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利用滬寧高速公路實(shí)時監(jiān)測的氣象數(shù)據(jù)分析了2007年11月24日發(fā)生在滬寧高速公路鎮(zhèn)江段團(tuán)霧過程的氣象要素變化。通過WRF模式耦合三種不同陸面方案對此次過程進(jìn)行了數(shù)值模擬，旨在檢驗(yàn)WRF模式耦合陸面方案對鎮(zhèn)江段團(tuán)霧的模擬能力。結(jié)果表明：（1）WRF模式模擬出的團(tuán)霧天氣過程對陸面方案的選擇比較敏感，耦合了不同陸面參數(shù)化方案后的試驗(yàn)結(jié)果更接近實(shí)況。（2）水汽參量模擬結(jié)果中，SLAB方案比NOAH方案和RUC方案效果好些，NOAH方案與RUC方案差異不大。（3）在地面感熱通量變化率模擬上，三者有些區(qū)別；在長波輻射變化率模擬上，NOAH方案較優(yōu)越。（4）在渦度場高值區(qū)模擬上，NOAH方案效果比SLAB、RUC方案更好。

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In this paper, real-time data monitored by the automatic meteorological stations was used to simulate the meteorological element evolution of a dumpling fog process occurred in Zhenjiang part of Shanghai-Nanjing Expressway on November 24, 2007, in order to test the ability of simulating dumpling fog. Results were followed as: (1)The dumpling fog processes simulated by the WRF model was sensitive to the selection of different land surface parameterization schemes and the simulations coupled to different schemes was closer to the reality. (2)When the SLAB scheme was coupled into the WRF model, the simulation of the intensity change and lasting time of the dumpling fog event was more effective than the NOAH scheme or the RUC scheme and there was little difference between the NOAH scheme and the RUC scheme. (3) In the simulations of the heat flux , there are some difference between each other among these three schemes, while in the simulation of the long-wave radiation, the NOAH scheme had more ideal effect than the SLAB scheme or the RUC scheme. (4) Results from the simulating the high-value areas of the vorticity field displayed that the NOAH scheme was a best one in three schemes.

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萬小雁,包云軒,嚴(yán)明良,袁成松,錢瑋.不同陸面方案對滬寧高速公路團(tuán)霧的模擬.氣象科學(xué),2010,(4):487-494 Wan Xiaoyan, Bao Yunxuan, Yan Mingliang, Yuan Chengsong, Qian Wei. Simulation of the dumpling fog on the Nanjing-Shanghai Expressway based on different land-surface schemes. Journal of the Meteorological Sciences,2010,(4):487-494

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