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

Authors
Temperton, C Hortal, M Simmons, A
Citation
C. Temperton et al., A two-time-level semi-Lagrangian global spectral model, Q J R METEO, 127(571), 2001, pp. 111-127
Citations number
31
Categorie Soggetti
Earth Sciences
Journal title
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
ISSN journal
00359009 → ACNP
Volume
127
Issue
571
Year of publication
2001
Part
A
Pages
111 - 127
Database
ISI
SICI code
0035-9009(200101)127:571<111:ATSGSM>2.0.ZU;2-T
Abstract
A three-time-level semi-Lagrangian global spectral model was introduced ope rationally at the European Centre for Medium-Range Weather Forecasts in 199 1. This paper first documents some later refinements to the three-time-leve l scheme, and then describes its conversion to a two-time-level scheme. Exp erimental results are presented to show that the two-time-level scheme main tains the accuracy of its three-time-level predecessor, while being conside rably more computationally efficient.