Abstract: Starting from the assumption that the atmosphere is the primary source of variability internal to the midlatitude atmosphere?ocean system on intraseasonal to interannual timescales, the authors construct a simple stochastically ...

Abstract: The sensitivity of the global atmospheric response to sea surface temperature (SST) anomalies throughout the tropical Indian and Pacific Ocean basins is investigated using the NCEP MRF9 general circulation model (GCM). ...

Abstract: Inhomogeneity in gridded meteorological data may arise from the inclusion of inhomogeneous station data or from aspects of the gridding procedure itself. However, the homogeneity of gridded datasets is rarely questioned, ...

Abstract: high-resolution case-based approach for dynamically downscaling climate model data is presented. Extreme precipitation events are selected from regional climate model (RCM) simulations of past and future time periods. Each ...

Abstract: recipitation changes between 32-yr periods in the late twentieth and mid-twenty-first centuries are investigated using regional climate model simulations provided by the North American Regional Climate Change Assessment ...

Abstract: Multiple tropical climate regimes are found in an atmospheric general circulation model (AGCM) coupled to a global slab ocean when the model is forced by different values of globally uniform insolation. Even in this simple ...

Abstract: The authors examine the sensitivity of the Battisti coupled atmosphere?ocean model?considered as a forecast model for the El Niño?Southern Oscillation (ENSO)?to perturbations in the sea surface temperature (SST) field ...

Abstract: Paleoclimatic evidence suggests that during the mid-Holocene epoch (about 6000 yr ago) North America and North Africa were significantly drier and wetter, respectively, than at present. Modeling efforts to attribute these ...

Abstract: Can an individual weather event be attributed to El Niño? This question is addressed quantitatively using ensembles of medium-range weather forecasts made with and without tropical sea surface temperature anomalies. The ...