Impact of different parameterization schemes on simulation of mesoscale convective system over south-east India

作者: A. Madhulatha , M. Rajeevan

DOI: 10.1007/S00703-017-0502-4

关键词:

摘要: Main objective of the present paper is to examine role various parameterization schemes in simulating evolution mesoscale convective system (MCS) occurred over south-east India. Using Weather Research and Forecasting (WRF) model, numerical experiments are conducted by considering planetary boundary layer, microphysics, cumulus schemes. Performances different evaluated examining reflectivity, precipitation features MCS using ground-based satellite observations. Among physical schemes, Mellor–Yamada–Janjic (MYJ) layer scheme able produce deep height warm temperatures necessary for storm initiation; Thompson (THM) microphysics capable simulate reflectivity reasonable distribution hydrometeors during stages system; Betts–Miller–Janjic (BMJ) capture proper representation instability associated with MCS. Present analysis suggests that MYJ, a local turbulent kinetic energy scheme, which accounts strong vertical mixing; THM, six-class hybrid moment considers number concentration along mixing ratio rain hydrometeors; BMJ, closure adjusts thermodynamic profiles based on climatological might have contributed better performance respective model simulations. Numerical simulation carried out above combination initiation, propagation, surface variations, structure, reasonably well. This study clearly demonstrates characteristics highly sensitive choice

参考文章(61)
Wei Wang, Nelson L. Seaman, A Comparison Study of Convective Parameterization Schemes in a Mesoscale Model Monthly Weather Review. ,vol. 125, pp. 252- 278 ,(1997) , 10.1175/1520-0493(1997)125<0252:ACSOCP>2.0.CO;2
John S. Kain, Michael E. Baldwin, Steven J. Weiss, Parameterized Updraft Mass Flux as a Predictor of Convective Intensity Weather and Forecasting. ,vol. 18, pp. 106- 116 ,(2003) , 10.1175/1520-0434(2003)018<0106:PUMFAA>2.0.CO;2
Srikanth Madala, A. N. V. Satyanarayana, C. V. Srinivas, Bhishma Tyagi, Performance Evaluation of PBL Schemes of ARW Model in Simulating Thermo-Dynamical Structure of Pre-Monsoon Convective Episodes over Kharagpur Using STORM Data Sets Pure and Applied Geophysics. ,vol. 173, pp. 1803- 1827 ,(2016) , 10.1007/S00024-015-1210-Y
Jimy Dudhia, Xiang-yu Huang, Dale Barker, Wei Wang, B. Klemp, O. Gill, G. Duda, G. Powers, C. Skamarock, A Description of the Advanced Research WRF Version 3 NCAR Technical. ,vol. 113, ,(2008) , 10.5065/D68S4MVH
J. R. Krieger, Sensitivity of WRF model forecasts to different physical parameterizations in the Beaufort Sea Region Eighth Conference on Coastal Atmospheric and Oceanic Prediction and Processes (AMS 89^<th> Annual Meeting), 2009-1. ,(2009)
Sujata Pattanayak, U. C. Mohanty, A comparative study on performance of MM5 and WRF models in simulation of tropical cyclones over Indian seas Current Science. ,vol. 95, pp. 923- 936 ,(2008)
John S. Kain, J. Michael Fritsch, Convective parameterization for mesoscale models : The Kain-Fritsch Scheme The Representation of Cumulus Convection in Numerical Models. pp. 165- 170 ,(1993) , 10.1007/978-1-935704-13-3_16