borehole, definition of

A global, three-dimensional computer model of the climate system; GCM's are highly complex and they represent the effects of such factors as reflective and absorptive properties of atmospheric water vapor, greenhouse gas concentrations, clouds, annual and daily solar heating, ocean temperatures and ice boundaries. The most recent GCM's include global representations of the atmosphere, oceans, and land surface.

They are often used to model the effects of human induced climate change into the future; but the accuracy of the models are highly dependent upon:

• The accuracy of the initial starting conditions;
• The accuracy of how the climatic processes are modeled, and;
• The accuracy of the assumptions made in the model construction.

• Architect Alex Michaelis Went Underground to Build His Elegant Notting Hill Home
  A self-proclaimed advocate of eco-friendly design, Michaelis did his best to source materials responsibly, bringing them in from all over Europe. When scanning the list of environmentally-conscious construction choices, though, I couldn’t help but question
• Even Further Down “The Borehole”
  Yesterday we had an enlightening guest post by Ian Rons titled Further Down the “Bore Hole” which presented some comment data and graphs, along with some observations about that nature of RealClimate.org and the way they treat visitors and commenters....
• IPCC and the Law Dome Graphic
  Re-reading Climategate and AR4 Review Comments, I noticed an interesting discussion about handling the Law Dome O18 record – a series used in Mann and Jones (2003) and Jones and Mann (2004) with a very elevated MWP...