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

HadRT is subject to Crown copyright protection. The material may be downloaded to file or printer for the purposes of private study and scientific research. Because it is a deprecated dataset there is a further restriction in place that it can only be used in conjunction with our current HadAT dataset.

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 citation:

D.E.Parker, Gordon, M., Cullum, D.P.N., Sexton, D.M.H., Folland, C.K., and Rayner, N. 1997: 'A New Gridded Radiosonde Temperature Data Base and Recent Temperature Trends'. Geophys. Res. Letters, 24, 1499-150

The source should also be quoted in the acknowledgements section as

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