Met Office Hadley Centre observations datasets
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QUARC Data: Terms and Conditions

QUARC is subject to Crown copyright protection. The material may be downloaded to file or printer for the purposes of private study and scientific research. Any other proposed use of the material is subject to a copyright licence available from the Met Office. Licences and further information can be obtained from the Met Office IPR Officer, Met Office, FitzRoy Road, Exeter, EX1 3PB, U.K. E-mail:

For further information on Crown Copyright policy and licensing arrangements, see the guidance featured on HMSO's web site.

When publishing work using the data, please use the following citations:

Titchner, H. A., P. W. Thorne, M. P. McCarthy, S. F. B. Tett, L. Haimberger, and D. E. Parker, 2009: Critically reassessing tropospheric temperature trends from radiosondes using realistic validation experiments, J. Climate, 22, 465-485, doi: 10.1175/2008JCLI2419.1

McCarthy, M. P., H.A. Titchner, P.W. Thorne, S.FB. Tett, L.Haimberger, D.E. Parker, 2008: Assessing bias and uncertainty in the HadAT adjusted radiosonde climate record, J. Climate, 21, doi: 10.1175/2007JCLI1733.1

The source should also be quoted in the acknowledgements section as

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