Evaluation　of　Forecast　Performance　of　an　Economical　Explicit　Time　Integration　Scheme　in　a　Limited　Area　Model　over　Indian　Region  

作　　者：A. Bandyopadhyay (1)   S. S. Singh (1) 

机构地区：[1]1. Indian Institute of Tropical Meteorology, 411008, Pune

出　　处：《Advances in Atmospheric Sciences》1994年第1期101-110,共10页大气科学进展（英文版）

摘　　要：An economical explicit scheme of time integration is implemented in a regional model over Indian region to achieve computational economy. The model is also integrated by explicit Leap-Frog Scheme. The performance of economical explicit scheme is evaluated by comparing the forecast results with those produced by leap-frog scheme. The results show that the economical explicit scheme produces more or less similar forecasts as compared to those produced with leap-frog scheme. However, application of the economical explicit scheme saves substantial amount of computer time. The scheme is found nearly four times economical as compared to explicit leap-frog scheme.An economical explicit scheme of time integration is implemented in a regional model over Indian region to achieve computational economy. The model is also integrated by explicit Leap-Frog Scheme. The performance of economical explicit scheme is evaluated by comparing the forecast results with those produced by leap-frog scheme. The results show that the economical explicit scheme produces more or less similar forecasts as compared to those produced with leap-frog scheme. However, application of the economical explicit scheme saves substantial amount of computer time. The scheme is found nearly four times economical as compared to explicit leap-frog scheme.

关 键 词：Economical-explicit SEMI-IMPLICIT Split-explicit Leap-frog Monsoon depression Numerical model 

分 类 号：F08:P4[经济管理—政治经济学]