Yesterday marked 80 years since the trig pillar was first used in the retriangulation of Great Britain on 18 April 1936. On that day, a group of surveyors gathered around a white concrete pillar in a field in Cold Ashby and began the retriangulation of Great Britain.
We’re celebrating by sharing the story of the humble trig pillar, still much loved by walkers today, and giving you the chance to join our celebrations with The Trig Pillar Trail Challenge. But what is the background to the trig pillar?
Talking about the 79th anniversary of the trig pillar this month has sparked a flood of reactions. Lots of our lovely followers on social media sent us pictures of them (or their dogs) with our trig pillars around Britain. Others expressed delight that they now know what those odd concrete pillars were for. Some wanted to adopt a trig pillar if we no longer used them (sorry, not something we offer). Still more people were amazed that we no longer use the vast majority of trig pillars and asked us what we use instead. The answer to that is OS Net.
Today’s guest blog is from Cristina Savian at Autodesk. If you were at last week’s GEO Business 2014 event, you may have seen our Acting Director General, Neil Ackroyd give his keynote and feature the image below, an infraworks model of Shrewsbury which was created using our new building height dataset. Cristina created the model and tells us how.
Customers using Ordnance Survey’s OS MasterMap Topography Layer can now access information on the heights of almost 20 million buildings across Great Britain with the alpha release of building height attributes. Released on 17 March, OS MasterMap Topography Layer – Building Height Attribute is a product enhancement to OS MasterMap Topography Layer, and available to licence holders at no additional cost.
Ordnance Survey make 10,000 changes a day to the master map of Great Britain. This fact often astounds people and this behind the scenes story from one of our surveyors, Dom Turnor, helps explain just how many changes occur to our landscape every day.
I’m a forty-something field surveyor living and working in the rolling hills and hidden valleys of Worcestershire, where my primary job and purpose is to keep the large scale mapping up-to-date. I have been working as a field surveyor for nearly 13 years and have concentrated my efforts mainly around the golden villages of the Cotswolds, the post-industrial towns of the Forest of Dean and the wooded valleys of Stroud. It has only been in the last year that I have been transferred a little to the north; where I now find my area of responsibility to be the Malvern Hills.
If you’re a user of our maps, then you’ll be familiar with the small blue map symbols that give helpful tourist information when you’re out and about. If you’ve ever wondered how those symbols are checked and placed on our maps, today’s blog from Kim Hall, one of our team based in the East of England, will answer your questions.
I spend my working week interacting with Ordnance Survey mapping data, but it’s rare that I unfold a paper map and delve into the dark arts of map reading and navigation. I was offered the opportunity to reconnect with that part of our operations and to get in the mindset of paper-map user for the day…
We have an excellent help and support section on our website to advise you on Ordnance Survey map products, map facts, maps and symbols for emergencies and getting the most from our online mapshop. A question we’re often asked is ‘what is GIS?’ and there’s a whole section dedicated to that too. Find out the basics here and visit the website to dig deeper into the subject.
Put simply, a GIS is a geographical information system, and to make that system work, you need maps and some software. We are one of many organisations producing map data for use in GIS. There are many more companies who then produce GIS software.
We were delighted to have been invited along to participate in BBC Radio 3’s Free Thinking Festival last weekend at Sage Gateshead.
Sage Gateshead is an iconic building, which opened in 2004, on the south bank of the River Tyne and hosts a range of musical education workshops, performances and conferences. It was a fitting venue to some of the country’s leading thinkers over a weekend which promised provocative debate, new ideas, music and performance.
Our Director General Vanessa Lawrence was invited to be on the panel for a session entitled ‘Why are maps still so powerful?’ along with author and academic Jerry Brotton – author of ‘A History of the World in 12 Maps’. Presented by BBC’s Rana Mitter, the radio interview was recorded in front of a live audience of around 200 map users.
Discussions are recorded for BBC Radio 3 and broadcast over the next three weeks or available to download.
Yorkshire Wildlife Trust
Yorkshire Wildlife Trust (YWT) is part of the influential UK-wide partnership of 47 Wildlife Trusts and has worked for more than 65 years to protect wildlife and wild places and educate, influence and empower people to conserve wildlife.
Responsible for 95 sites covering in excess of 6300 acres, YWT manages assets within different territories as well as mapping and tracking the ownership of site boundaries and collecting and storing extensive conservation data from surveys. They work with landowners on many conservation projects and mapping plays a key role in the large portion of their activity.
The Trust needed to be able to view and analyse the information they were gathering on a digital map – the data needed to be presented in a comprehensive, visual and geographic nature to fully understand the relationship between the data and the geography.This in turn would help with funding bids, as well as managing projects and memberships.