Edward K. Vizy

Learn More
A mesoscale climate model (MCM) is developed from the Pennsylvania State University/ National Center for Atmospheric Research (PSU/ NCAR) MM5 model to simulate the West African summer monsoon. Results from the MCM are compared to observations, a reanalysis, and GCM output to show that the MCM reasonably simulates the West African monsoon climate and its(More)
The ability of coupled GCMs to correctly simulate the climatology and a prominent mode of variability of the West African monsoon is evaluated, and the results are used to make informed decisions about which models may be producing more reliable projections of future climate in this region. The integrations were made available by the Program for Climate(More)
The consistency of land-based and ocean-based Last Glacial Maximum (LGM) proxy evidence on and near South America is evaluated by utilizing a regional climate model (RCM). The relatively high resolution of the RCM brings model output closer to the spatial scales of the geological reconstructions. This is important because proxy sites only a few ten’s of(More)
To view the published open abstract, go to http://dx.doi.org and enter the DOI. Further reproduction or electronic distribution is not permitted. ABSTRACT The climate of the Last Glacial Maximum (LGM) over South America is simulated using a regional climate model with 60-km resolution, providing a simulation that is superior to those available from global(More)
Previous work suggests that changes in seasonality could lead to a 70% reduction in the extent of the Amazon rainforest. The primary cause of the dieback of the rainforest is a lengthening of the dry season due to a weakening of the large-scale tropical circulation. Here we examine these changes in the seasonal cycle. Under present day conditions the Amazon(More)
  • 1