In the 14 October,1999,Volume 401 NATURE, Myles Allen,of the Space Science Dept.,Rutherford Appleton Laboratory,Chilton,Didcot,UK, wrote an open letter to anyone with a personal computer,who'd like to participate in a Million-plus member,ensemble climate forecast.
They would provide the Hadley Center,UK Meteorological Office' HadCM3 model,plus data,to run the hundreds of thousands of model iterations which would help them better determine tasks for higher-resolution,expensive and time-consuming supercomputer iterations.
At the time,millions of individuals were already participating in the 'SETI@home' ensemble radio-astronomy project,to discover extraterrestrial signals.
A PC of the day would require 6-months to accomplish a single iteration of the model,with the memory capacity of a video game system.
Anyone interested was to contact:
http://www.climate-dynamics.rl.ac.uk
So we have at least one example where the climatology community offered open access,to not only the computer model,but also the raw data that would be incorporated in the modelling.
Perfect transparency.