Climate Assessment Resources

Climate-related extreme events require explanations that are both timely and of scientific merit. Objective assessment of the nature and causes of extreme events is scientifically challenging, and the complexity of physical processes inevitably requires the use of climate models to test and quantify cause-effect linkages.

Difference in the precipitation from 1979-1995 to 1996-2014 time periods as depicted in the ESRL-GFSv2 model showing drying over East Africa.
Comparison of African precipitation in the ESRL GFS v2 model through time
Correlation between monthly precipitation and Nino 3.4 index.
Correlation of Precipitation and Nino 3.4 Index
Plot of the 200 hPa height anomalies during strong El Nino years
ENSO 200 hPa Height Anomaly Comparison

One key factor to an objective assessment of extreme weather/climate events is data availability, both observational data and model simulations that address the unique environment of a climate-related extreme event under consideration. This server is intended especially for the purpose of real-time assessments of extreme weather/climate events and enabling the broader scientific community and other users of climate information to assess evolving climate conditions and extremes.