date: Thu, 21 May 2009 09:18:58 +0100
from: "Colin Harpham" <c.harpham@uea.ac.uk>
subject: SCORCHIO cfs
to: "Clare Goodess" <C.Goodess@uea.ac.uk>, "Phil Jones" <p.jones@uea.ac.uk>

   Clare/Phil,


   If we were to use a different baseline to calculate the cfs in order to inflate the
   scenario for the central UHI cell could we justify it?


   Looking at it from an outsiders perspective I would ask the following questions:

   1)       Why has a different baseline been used to calculate the cfs, does this imply that
   the 1971-1990 period (for e.g. Urb3Anth) does not reflect observed climate?

   2)      If the baseline period is incorrect then can we have confidence in the WG scenario
   produced?

   3)      UrbAnth - noUrbnoAnth has been used to calculate cfs for an urban cell when we know
   from observed data that cell already contains urban and anthropogenic influences for
   1971-1990.

   Or something along those lines...


   Opinions?


   Once I have finished the UKCP09 testing I'll calculate the cfs for UrbAnth - noUrbnoAnth
   and Urb3Anth - noUrbnoAnth to see what the numbers actually look like.


   Cheers

   Colin
