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Height of the terrain

Request for information – FOI13360

Thank you for your e-mail 19 February 2013, requesting:

Please can you let me know the most accurate estimate that you hold of the height of the terrain (excluding any objects such as trees or buildings) above Ordnance Datum at either:

(i) grid reference SU 50512 97453 (hereafter point "A"), or

(ii) points surrounding A for which you hold accurate elevation data, from which the elevation at A can reasonably be estimated by interpolation – for example if you have gridded Digital Terrain Model data then the vertices of the grid cell containing A – stating their locations.

I confirm that Ordnance Survey does hold this information, however, your request falls within the ‘Information accessible to applicant by other means’ exemption under Section 21 of the Freedom of Information Act (FOIA) 2000.

We consider this exemption applies because the requested information is available to the public, as a licensed data product from Ordnance Survey called Land-Form PROFILE®.

Whilst there will be a cost to obtain licensed data, section 21 (2) (a) of the FOIA advises that information may be considered reasonably accessible to the applicant even though it is accessible only on payment.

Further information relating to the Land-From PROFILE product, and how to purchase this data, is available from our Land-Form PROFILE web page.

Public interest
Section 21 is an absolute exemption and no public interest test is applicable.

Internal review
Your enquiry has been processed according to the Freedom of Information Act (FOIA) 2000. If you are unhappy with our response, you may request an internal review with our FOI Internal Review Officer, by contacting them as follows:

FOI Internal Review Officer
Customer Service Centre
Ordnance Survey
Adanac Drive
SO16 0AS

E-mail: foi@ordnancesurvey.co.uk

Please include the reference number above. You may request an internal review where you believe Ordnance Survey has:

  • Failed to respond to your request within the time limits (normally 20 working days)
  • Failed to tell you whether or not we hold the information
  • Failed to provide the information you have requested
  • Failed to explain the reasons for refusing a request
  • Failed to correctly apply an exemption or exception

The FOI Internal Review Officer will not have been involved in the original decision. They will conduct an independent internal review and will inform you of the outcome of the review normally within 20 working days, but exceptionally within 40 working days, in line with the Information Commissioner’s guidance.

The FOI Internal Review Officer will either: uphold the original decision, provide an additional explanation of the exemption/s applied or release further information, if it is considered appropriate to do so.

Appeal to Information Commissioner's Office (ICO)
If, following the outcome of the internal review you remain unhappy with our response, you may raise an appeal with the Information Commissioner’s Office at:

The Case Reception Unit
Customer Service Team
The Information Commissioner’s Office
Wycliffe House
Water Lane

ICO e-mail: mail@ico.gsi.gov.uk
ICO telephone helpline: 0303 123 1113 or 01625 545745.

Thank you for your enquiry.

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