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A two-time-level semi-Lagrangian global spectral model

✍ Scribed by Clive Temperton; Mariano Hortal; Adrian Simmons

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
956 KB
Volume
127
Category
Article
ISSN
0035-9009

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✦ Synopsis

Abstract

A three‐time‐level semi‐Lagrangian global spectral model was introduced operationally at the European Centre for Medium‐Range Weather Forecasts in 1991. This paper first documents some later refinements to the three‐time‐level scheme, and then describes its conversion to a two‐time‐level scheme. Experimental results are presented to show that the two‐time‐level scheme maintains the accuracy of its three‐time‐level predecessor, while being considerably more computationally efficient.

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