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225 Years On: First Ordnance Survey Map's Legacy Lives!
2 Nov
Summary
- The first Ordnance Survey map, created over fears of Napoleonic invasion, is 225 years old.
- Modern mapping uses aircraft and satellites, surveying in days what once took years.
- Ordnance Survey data is used daily by the average person for various services.
The foundational Ordnance Survey map, originally charting Kent, is being celebrated 225 years after its 1801 publication. This pioneering map was developed out of concerns for a potential Napoleonic invasion along the coast.
Its creation involved over a decade of detailed surveying and pioneering techniques to accurately depict the county's landscape. Today, the Ordnance Survey utilizes aircraft, satellites, and GPS technology to maintain up-to-date maps, surveying areas in approximately 10 days that previously took years.
Phil Nangle, an air camera operator, highlighted the transformation, explaining how 450-megapixel cameras on aircraft mosaic together vast amounts of imagery to build current maps. This data allows for the extraction of features like buildings and roads.
Tina Kennedy, Ordnance Survey's chief customer officer, expressed amazement at the original map's accuracy even after 225 years. She noted that the dedication to detail and accuracy remains a core part of the organization's identity.
Initially created for military purposes, Ordnance Survey's data now supports diverse sectors including infrastructure planning and emergency response. Kennedy stated that the average person interacts with this data 42 times daily, often unknowingly, influencing everything from parcel delivery to property transactions.
The anniversary is being marked at the Royal Engineers Museum, featuring discussions on the evolution of mapping and displays of historic equipment.
