New Paper Showing that Double Precision Numerics as Standard is not Necessary for Numerical Weather Predictions

A new paper that is now accepted in the Monthly Weather Review shows that single precision (32 bits) is sufficient for almost all parts of a weather forecast model to generate accurate simulations. In close collaboration with ECMWF we could show that single and double precision produce virtually the same quality in results for both short and long term simulations with the Integrated Forecast System. Savings due to the use of single precision are significant (~40%). Please click here for further information.