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      • accesstypevalue
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  • Introducing temporal filtering
  • How do I add a temporal filter to a new data package?

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  1. ACCESSING OS NGD
  2. Downloading with OS Select+Build

Getting Started with Temporal Filtering

PreviousGetting Started with Attribute FilteringNextAccessing OS NGD APIs

Last updated 1 month ago

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Introducing temporal filtering

Temporal filtering allows you to order a one-off snapshot of data from the OS National Geographic Database (NGD) from a current or past date.

Temporal filtering is an optional step when you create a new data package against one of your existing recipes. For further information and step-by-step instructions on creating recipes and data packages, please see the .

You cannot apply a temporal filter to an existing data package held in your Data packages list; a temporal filter can only be added to new data packages during the data package creation stage.

The earliest date you can request for the majority of feature types in the OS NGD via a temporal filter is 29 September 2022.

Please note, as new feature types are added to the OS NGD, their temporal filter range will begin on the date they are added (for example, 28 March 2023 for the Waterbody Catchment Feature Type). Each feature type page states the earliest start date available for temporal filtering on that feature type.

If you request a temporal filter date for your new data package that precedes the date a feature type in the data package was added to the OS NGD, then no results will be returned.

How do I add a temporal filter to a new data package?

To create a new OS NGD data package and apply a temporal filter to it:

1
2

Select Download from the main menu

3

Choose OS Select+Build from the secondary navigation menu

4

In your OS NGD Select+Build Recipe Library, scroll or search for the recipe you wish to create a data package against, select that recipe, then click the Add data package button.

5

Select add a data package in the secondary navigation menu to add details to your data package

6

Give your data package a name

7

Choose the area you want to receive your data for

This may be either all of Britain or Predefined Area (this means you receive data and it will not be refined by location) or Draw a polygon / upload a file / use an OS polygon to select a smaller area for your data to be provided for.

8
9
10

Select the updates you want

Instead of selecting the 'not required' or COU (Change-Only Update) frequency options (which are available under the 'Select updates' drop-down), to apply a temporal filter, you should select the option for a one-off snapshot of a current or past date by ticking the following check box:

11

Select the supply date needed for the snapsho

12

Click the Create data package button

You will receive an email confirming that your data package is being created and another one when your new data package is ready to download.

Log into your account.

Select the desired

Select a file format: or

OS Data Hub
YouTube video showing how to add a temporal filter to a new data package in OS Select+Build.
Screenshot showing the one-off snapshot option when creating a new data package in OS Select+Build.
Screenshot of OS Select+Build showing the one-off snapshot check box option selected and a date selected.
Screenshot showing the one-off snapshot check box option when creating a new data package in OS Select+Build in the OS Data Hub.
Screenshot of OS Select+Build during the new data package creating stage showing the one-off snapshot check box option selected and a date selected.
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