On the Maintenance and Initiation of the Intraseasonal Oscillation in the NCEP/NCAR Reanalysis and the GLA and UKMO AMIP Simulations Kenneth R Sperber, 1 Julia M Slingo, 2 Peter M Inness, 3 and William K-M Lau 4 1 Program for Climate Model Diagnosis and Intercomparison Lawrence Livermore National Laboratory Livermore, CA 94551, USA 2 Department of Meteorology University of Reading Reading, RG6 6AU, United Kingdom 3 Hadley Centre for Climate Prediction and Research United Kingdom Meteorological Office Berkshire, RG12 2SY, United Kingdom 4 Goddard Space Flight Center NASA, Code 913 Greenbelt, MD 20771, USA This paper was prepared for submission to Climate Dynamics Corresponding Author: Dr. Kenneth R Sperber Program for Climate Model Diagnosis and Intercomparison Lawrence Livermore National Laboratory P.O. Box 808, L-264 Livermore, CA 94551 USA Phone: (510) 422-7720 Fax: (510) 422-7675 E-mail: sperber@space.llnl.gov Table of Contents Abstract 1. INTRODUCTION 2. THE MODELS AND DATA 3. CLIMATOLOGICAL STRUCTURES PCMDI Rep[ort Series, No. 36 http://www-pcmdi.llnl.gov/sperber/report36/Rpt36.htm (1 of 25) [11/15/2000 10:15:22 AM]