Impact of adjustments

Bishop Hill made this Freedom of Information request to University of East Anglia

This request has been closed to new correspondence. Contact us if you think it should be reopened.

The request was successful.

Dear Sir or Madam,

I am interested in the HADCRUT3 global temperature index. Specifically, I would like to know the impact of adjustments to the data over time as these affect the global mean surface temperature.

I imagine that such an assessment must be done as a part of the regular preparation of the index and presumably would take the form of a chart of the index calculated with and without the adjustments, although anything along these lines would meet my needs.

For the avoidance of doubt, I'm trying to compare the two extremes - raw data from the weather stations at one end, and the final HADCRUT3 GMST at the other.

Yours faithfully,

Andrew Montford

Palmer Dave Mr (LIB), University of East Anglia

I will be away from the University from Monday 22 December to Friday 2
Januay inclusive. I will deal with any correspondence upon my return to
the office on Monday 5 January 2009. If you have urgent matters regarding
FOIA or DPA, please contact Jane Baker or Bob Heath (x3483).

Palmer Dave Mr (LIB), University of East Anglia

1 Attachment

Mr. Montford,

Attached please find a letter acknowledging your request received on 3
January 2009. It also contains further information regarding the handling
of this request under the Environmental Information Regulations 2004. I
will be in contact with you further in due course.

Cheers, Dave Palmer

<<Acknowledgement_letter_090105.doc>>
____________________________
David Palmer
Information Policy & Compliance Manager
University of East Anglia
Norwich, England
NR4 7TJ

Palmer Dave Mr (LIB), University of East Anglia

1 Attachment

Mr. Montford,

Attached please find a response to your request received on 3 January
2009. If you have any questions don't hesitate to contact me.

Cheers, Dave Palmer

<<Response_letter_090121.doc>>
____________________________
David Palmer
Information Policy & Compliance Manager
University of East Anglia
Norwich, England
NR4 7TJ

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