OS NGD Fundamentals

OS NGD Fundamentals covers the core elements of OS NGD design, including data formats, coordinate reference systems used, data schema versioning, and data ordering and currency.

Introduction

The following pages provide an overview of the OS National Geographic Database (OS NGD); they cover the core elements of its design, including data formats, the coordinate reference systems used, and how Change-Only Updates (COUs) will be provided, amongst other topics:

• Terminology and access

• File formats and naming

• Data ordering and currency

• COU supplies

• Data schema versioning

• Unique identifiers

• Coordinate reference systems

• Attribute information for feature types

These pages should be used in conjunction with the more detailed pages available within the Data Structure section which are specifically focussed on the different OS NGD themes, collections and feature types.

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Discover OS NGD

Detailed documentation on OS NGD design and practical guides on how to apply OS NGD data:

📖 OS NGD Explained

A high level summary of what the OS NGD is, how to access it and who can use it.

❓ FAQs

Frequently asked questions on OS NGD data and access methods (OS Select+Build and OS NGD APIs).

👩‍🏫 OS NGD Webinars, Tutorials and Case Studies

Learn more about the OS NGD through our webinars and tutorials. Case studies demonstrate how customers across numerous sectors are already using and benefiting from OS NGD data.

Explore OS NGD

In-depth information on OS NGD data, including structure, applications and news:

📣 OS NGD News

Learn about new data enhancements and service updates released for the OS NGD.

🗃️ Data Structure

Data structure pages provide more detailed information about data available for OS NGD themes, collections and feature types.

🎨 Styling OS NGD Data

Resources for styling OS NGD data.

Get OS NGD

Try out OS NGD sample data, download it via OS Select+Build or access it through the OS NGD APIs:

🗺️ OS NGD Sample Data

Try out OS NGD by downloading an area of sample data or visualising it online.

📥 OS Select+Build

Download OS NGD data using our bespoke download service, OS Select+Build.

📌 OS NGD APIs

Access OS NGD data using the OS NGD APIs to get started using OS NGD within desktop, web and mobile applications.