The equatorial Pacific is a region with strong negative feedbacks. Yet coupled general circulation models (GCMs) have exhibited a propensity to develop a significant SST bias in that region, suggesting an unrealistic sensitivity in the coupled models to small energy flux errors that inevitably occur in the individual model components. Could this “hypersensitivity” exhibited in a coupled model b...

1. INTRODUCTION Parallel computing promises signiicant improvements in both the raw speed and cost performance of mesoscale atmospheric models. On distributed-memory massively parallel computers available today, the performance of a mesoscale model will exceed that of conventional supercom-puters; on the teraaops machines expected within the next ve years, performance will increase by several o...

To evaluate the scalar ocean surface wind speeds obtained from the Special Sensor Microwave Imager (SSM/I) we compare them over the time period from July 1987 through December 1997 with those from two global analyses: the NCEP/NCAR Annual Reanalysis and the ECMWF TOGA Global Surface Analysis. We perform a statistical analysis for the whole globe and present time series analyses for selected geo...

Abstract The idealized Weather Research and Forecasting (WRF) simulations are conducted to investigate tropical cyclone (TC) size intensity over the Western North Pacific (WNP) past decades, as represented by National Centers for Environmental Prediction/National Center Atmospheric (NCEP/NCAR) R-1, European Medium range (ECMWF) twentieth century (ERA20C) reanalysis, Oceanic Administration Coope...

Sean P. Burns1,2∗, Stefan Metzger3, Peter D. Blanken2, George Burba4, Edward Swiatek5, Jiahong Li4, Benjamin Conrad5, Hongyan Luo3, and Jeff Taylor3 1National Center for Atmospheric Research (NCAR), Boulder, CO 80307 2Department of Geography, University of Colorado, Boulder, CO 80309 3National Ecological Observatory Network (NEON), Boulder, CO 80301 4LI-COR Biosciences, Lincoln, NE 68504 5Campb...