Prediction of precipitation associated with a western disturbance using a high-resolution regional model: role of parameterisation of physical processes

被引：25

作者：

Azadi, M ^{[1
]}

Mohanty, UC

Madan, OP

Padmanabhamurty, B

机构：

[1] Jawaharlal Nehru Univ, Sch Environm Sci, New Delhi 110067, India

[2] Indian Inst Technol, Ctr Atmospher Sci, New Delhi, India

来源：

METEOROLOGICAL APPLICATIONS | 2002年 / 9卷 / 03期

关键词：

Sea level;

D O I：

10.1017/S1350482702003055

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

In this study a non-hydrostatic version of the PSU/NCAR mesoscale model is used to simulate an active western disturbance (WD) that affected the Indian region in January 1997. The role of the planetary boundary layer (PBL) and convection parameterisation schemes in the development of the WD is investigated. Analysis and predictions for some fields, including sea level pressure, geopotential height, temperature, horizontal wind and precipitation are examined. Some statistical scores are also calculated and compared. It is found that the performance of the Hong-Pan (as implemented in the NCAR MRF model) and Betts-Miller (or Grell) schemes as PBL and convection parameterisation schemes respectively are best compared to the other schemes used in this study.

引用

页码：317 / 326

页数：10