On Tue, 19 Jun 2007, Michael Tobis wrote: > On 6/19/07, Tom Adams <[EMAIL PROTECTED]> wrote: >> Does this concept of "climate sensitivity" (currently estimated at 3 C >> per doubling of CO2) have a tight definition?
Wot the IPCC mean by it is at http://www.grida.no/climate/ipcc_tar/wg1/518.htm with ref to chapter 9. Although this (as mt says) is generally assumed to leave out e.g. ice sheet response, it could be argued to be ambiguous: it sez: "The .equilibrium climate sensitivity. (IPCC 1990, 1996) is defined as the change in global mean temperature, T2x, that results when the climate system, or a climate model, attains a new equilibrium with the forcing change F2x resulting from a doubling of the atmospheric CO2 concentration" which appears to mean that it cinludes anything that happens to be within your model. -W. William M Connolley | [EMAIL PROTECTED] | http://www.antarctica.ac.uk/met/wmc/ Climate Modeller, British Antarctic Survey | 07985 935400 -- This message (and any attachments) is for the recipient only. NERC is subject to the Freedom of Information Act 2000 and the contents of this email and any reply you make may be disclosed by NERC unless it is exempt from release under the Act. Any material supplied to NERC may be stored in an electronic records management system. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
