A) Super Output Areas - (SOA's) - for Data from 2004

B) Repopulation of Data vs. Suppression - for Data from 2004

C) New Definitions for Farm Classifications - for Data from 2004

A) Super Output Areas - (SOA's)

Background

• From October 2004, Super Output Areas (middle layer) replaced wards as the standard lower-level geography for the June Agricultural Survey data.
• Super Output Areas (SOAs) are a new geography designed to improve the reporting of small area statistics.
• They were introduced initially for use on the Neighbourhood Statistics (NeSS) website, but are intended to eventually become the standard across National Statistics.
• Until now (2004) the standard unit for presenting local statistical information was the electoral ward/division. But because these are subject to regular boundary changes this created problems when trying to compare datasets from different time periods. Therefore it was decided to develop a range of areas whose boundaries would not change. These were built from groups of 2001 Survey Output Areas (OAs) and are known as Super Output Areas (SOAs).
• There are 3 layers of SOA. These are based on population numbers with the Middle Layer SOAs having a minimum population 5000 and a mean of 7200. There are 6781 Middle Layer SOAs in England (compared with approximately 8000 wards).
• For more information: See the Office of National Statistics or Neighbourhood Statistics websites.

New Hierarchy

• Note: Each layer nests within the layer above, i.e. SOAs nest within NUTS 4, which nest within NUTS 3, etc.
• [NUTS - the Nomenclature of Units for Territorial Statistics]

• Level 1 - England
• Level 2 - NUTS 1 (or GOR - Government Office Regions)
• Level 3 - NUTS 3 (or Cty/UA - County/Unitary Authority)
• Level 4 - NUTS 4 (or LA - Local Authority)
• Level 5 - SOA middle layer (Super Output Area, middle layer) - previously ward

Compare Wards to Super Output Areas

• Click Here to find which wards are in which SOA, (note: These are the 1998 boundary wards).

Data Searches - From England to Super Output Areas

• For Agricultural Survey Data before (and including) June 2003; data is given by England to ward.
• Data from June 2004, (by England to SOAs-middle layer)

B) Repopulation (vs. Suppression)

Background

• From 2004 a change to Survey Data was adopted. This was to 'repopulate' data that would otherwise be suppressed due to disclosure and data-protection reasons.
• The repopulated data would be a random number based on the original data, so would be a good approximation of the actual value, without compromising confidentiality.

• For more information: Click Here ...

C) New Definitions - (Farm Classifications, "Robust types")

• From 2004, there was a change in the allocation of Farm Classifications, including an extra class. Click here for details..