边界层方案对我国中东部地区降水日变化的影响
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摘要
<正>详细摘要:以华中区域中尺度业务模式WRF3D为平台,使用MYJ、ACM2边界层方案完成了2012年7月的批量敏感试验,并与高时空分辨率实况降水数据作对比,重点关注不同边界层方案对我国中东部地区降水日变化的影响。结果表明,两种方案下的降水预报均对我国中东部地区清晨和午后并存的降水双峰值有所表现,且两者对清晨降水峰值的预报差异不大,但预报的午后降水峰值差异明显,尤其表现在峰值幅度上,位相上也略有差异。总体而言,ACM2方案下的降水日变化特征更接近实况。进一步对高分辨率模式输出的诊断表明,午后降水峰值主要由隐式降水决定。在此基础上,从模式中隐、显式降水产生机制的角度考察了不同边界层方案下降水日变化差异的可能原因。
引文
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[2]吴海英,曾明剑,尹东屏,等.2010.一次苏皖特大暴雨过程中边界层急流结构演变特征和作用分析[J].高原气象,29(6):1431-1440.
[3]盛日锋,王俊,龚佃利,等.2011.济南“7.18”大暴雨中尺度分析[J].高原气象,30(6):1554-1565.
[4]苗爱梅,郝振荣,贾利冬,等.2014.“0702”山西大暴雨过程的多尺度特征[J].高原气象,33(3):786-800.
[5]Xu L R,Zhao M.2000.The influence of boundary layer parameterization schemes on mesoscale heavy rain system[J].Adv Atmos Sci,17(3):458-472.
[6]陈炯,王建捷.2006.边界层参数化方案对降水预报的影响[J].应用气象学报,17(增刊1):11-17.
[7]蔡芗宁,寿绍文,钟青.2006.边界层参数化方案对暴雨数值模拟的影响[J].南京气象学院学报,29(3):364-370.
[8]蔡芗宁,周庆亮,钟青,等.2007.边界层参数化对“雅安天漏”降水数值模拟的影响[J].气象,33(5):12-19.
[9]肖玉华,何光碧,顾清源,等.2010.边界层参数化方案对不同性质降水模拟的影响[J].高原气象,29(2):331-339.
[10]徐慧燕,朱业,刘瑞,等.2013.长江下游地区不同边界层参数化方案的试验研究[J].大气科学,37(1):149-159.
[11]张大林.1998.各种非绝热物理过程在中尺度模式中的作用[J].大气科学,22(4):548-561.
[12]Lee M I,Schubert S D,Suarez M J,et al.2007.Diurnal cycle of precipitation in the NASA Seasonal to Interannual Prediction Project atmospheric general circulation model[J].J Geophys Res,112:D16111.DOI:10.1029/2006JD008346.
[13]陈超君,李俊,王明欢.2014.2013年华中区域中尺度业务数值预报的客观检验[J].暴雨灾害,33(2):187-192.
[14]Janjic Z I.2002.Nonsingular implementation of the Mellor–Yamada level 2.5 scheme in the NCEP Meso model[R].NCEP Office Note,No.437:61pp.
[15]Pleim J E.2007.A combined local and non-local closure model for the atmospheric boundary layer.Part 1:Model description and testing[J].J Appl Meteorol Climatol,46:1383-1395.
[16]Yu R C,Xu Y P,Zhou T J,et al.2007a.Relation between rainfall duration and diurnal variation in the warm season precipitation over central eastern China[J].Geophys Res Lett,34:L13703.DOI:10.1029/2007GL030315.
[17]Yu R C,Zhou T J,Xiong A Y,et al.2007b.Diurnal variations of summer precipitation over contiguous China[J].Geophys Res Lett,34:L01704.DOI:10.1029/2006GL028129.
[18]Klemp J B,Skamarock W C,Dudhia J.2007.Conservative split-explicit time integration methods for the compressible nonhydrostatic equations[J].Mon Wea Rev,135:2897-2913.
[19]Mlawer E J,Taubman S J,Brown P D,et al.1997.Radiative transfer for inhomogeneous atmosphere:RRTM,a validated correlated-k model for the longwave[J].J Geophys Res,102(D14):16663-16682.
[20]Chou M D,Suarez M J.1994.An efficient thermal infrared radiation parameterization for use in general circulation models[M].NASA Tech Memo 104606,Vol.3:85pp.
[21]Hong S Y,Lim J O J.2006.The WRF Singlesingle-Moment moment 6-Class class Microphysics microphysics Scheme scheme(WSM6)[J].J Korean Meteor Soc,42:129-151.
[22]Kain J S.2004.The Kain-Fritsch convective parameterization:An update[J].J Appl Meteor,43(1):170-181.
[23]Clark A J,Gallus Jr.W A,Chen T C.2007.Comparison of the diurnal precipitation cycle in convection-resolving and non-convection-resolving mesoscale models[J].Mon Wea Rev,135(10):3456-3473.
[24]潘旸,沈艳,宇婧婧,等.2012.基于最优插值方法分析的中国区域地面观测与卫星反演逐时降水融合试验[J].气象学报,70(6):1381-1389.
[25]沈艳,潘旸,宇婧婧,等.2013.中国区域小时降水量融合产品的质量评估[J].大气科学学报,36(1):37-46.
[26]江志红,卢尧,丁裕国.2013.基于时空结构指标的中国融合降水资料质量评估[J].气象学报,71(5):891-900.
[27]Dai A G.2001.Global precipitation and thunderstorm frequencies.Part II:Diurnal variations[J].J Climate,14(6):1112-1128.
[28]Nesbitt S W,Zipser E J.2003.The diurnal cycle of rainfall and convective intensity according to three years of TRMM measurements[J].J Climate,16(10):1456-1475.
[29]Yang S,Smith E A.2008.Convective-stratiform precipitation variability at seasonal scale from 8 yr of TRMM observations:Implications for multiple modes of diurnal variability[J].J Climate,21(16):4087-4114.
[30]Hu X M,Nielsen-Gammon J W,Zhang F Q.2010.Evaluation of three planetary boundary layer schemes in the WRF model[J].J Appl Meteor Climatol,49(9):1831-1844.