全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
大气科学  2004 

城市边界层数值模式研究以及在香港地区复杂地形下的应用

DOI: 10.3878/j.issn.1006-9895.2004.06.14

Keywords: 城市边界层,能量平衡模式,香港地区

Full-Text   Cite this paper   Add to My Lib

Abstract:

由于城市表面复杂的下垫面的影响,使得城市边界层风温场结构较其他下垫面有很大不同.作者通过将城市中500m网格内的各种地表类型,按照各自在网格中所占的百分比及各自的地表参数加权平均,得到此网格的平均的地表参数,以此准确反映下垫面的情况,建立分辨率为500m的城市边界层能量平衡模式,将此城市边界层能量平衡模式嵌入动力学框架,并用中尺度模式MM5作为初始条件和边界条件,建立一个既考虑中尺度背景场又详细考虑城市下垫面复杂性与多样性的城市边界层模式系统.将模式系统运用于香港复杂地形下的边界层特点的模拟研究.通过与观测值的比较,模式能够较准确的模拟出海陆风、城市热岛等热力过程,及气流过山引起的绕流等动力过程,并且通过对边界层高度的模拟预测污染扩散的条件等.说明模式系统具有模拟在中尺度的背景场的控制下海陆风环流、过山堆积和绕流及城市热力影响的能力.

References

[1]  Dudhia, J., A nonhydrostatic version of the Penn State-NCAR Mesoscale Model: validation tests and simulation of an Atlantic cyclone and cold front, Mon. Wea. Rev., 1993, 121(5), 1493~1513.
[2]  Pielke, R.A., W. R. Cotton, R. L. Walko et al., A comprehensive meteorological modeling system-RAMS, Meteor. Atmos. Phys., 1992, 49(1), 69~91.
[3]  Xue, M., K. K. Droegemeier,V. Wong et al., The Advanced Regional Prediction System (ARPS)A multi-scale nonhydrostatic atmospheric simulation and prediction model. Part I: Model dynamics and verification, Meteorology and Atmospheric Physics, 2000, 75(3), 161~193.
[4]  Urano, A., T. Ichinose, and K. Hanadi, Thermal environment simulation for three dimensional replacement of urban activity, J. Wind Eng. Ind. Aero., 1999, 81(2), 197~210.
[5]  Yamada, T., Building and terrain effects in a mesoscale model, 11th Conference on the Applications of Air Pollution Meteorology with A&WMA, 9-14 January, Long Beach, CA, 2000, 215~220.
[6]  Zhang, L., and M. Zhang, Study of the sea-land breeze system in Hong Kong, Bulletin of Hong Kong Meteorological Society, 1997, 7(1), 22~43.
[7]  Liu, H.P., J. C. L. Chan, and A. Y. C. Cheng, Internal boundary layer structure under sea-breeze conditions in Hong Kong, Atmos. Environ., 2001, 35(4), 683~692.
[8]  Liu, H.P., and J. C. L. Chan, Boundary-layer dynamics associated with a severe air-pollution episode in Hong Kong, Atmos. Environ., 2002, 36(12),2013~2025.
[9]  Liu, H.P., and J. C. L. Chan, An investigation of air-pollutant patterns under sea-land breezes during a severe air-pollution episode in Hong Kong, Atmos. Environ., 2002, 36(4), 591~601.
[10]  Acquiemin, B., and J. Noilhan, Sensitivity study and validation of a land surface parameterization using the HAPEX-MOBILHY data set, Bound.-Layer Meteor., 1990, 52(1), 93~134.
[11]  Amada, T., Simulations of nocturnal drainage flow by a turbulence model, J. Atmos. Sci., 1983, 40(1), 90~106.
[12]  桑建国、温世耕,大气扩散的数值模拟,北京:气象出版社,1990,372pp.
[13]  Uno, I., H. Ueda, and S. Wakamatsu, Numerical modeling of the nocturnal urban boundary layer, Bound.-Layer Meteor., 1989, 49(1), 77~98.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133