Satnav in the Landscape Harnessed for Global Error Mapping

There are more than five billion satnav devices on Earth. Along with smartphones and mobile receivers, this figure includes networks of fixed receiver stations, used to improve accuracy. An European Space Agency-led project will harness these networks to provide an ongoing overview of satnav performance from the global to national and regional scale. “The general assumption is that Global Navigation Satellite System (GNSS) services can always be relied on, which is true 99% of the time,” comments Michael Pattinson of Nottingham Scientific Ltd in the UK, developing this new project for ESA. “That’s fine for the ordinary smartphone user, but... (read more)
2019-11-20 11:19:42

How Lidar Has Changed the Way to View Michigan's Terrain

Staff from the Michigan Department of Environment, Great Lakes, and Energy (EGLE) are using Lidar technology to view the topography (elevation) of the state at a resolution that is 50 times greater than previously existed. "In fact," says John Esch, geology specialist, "Lidar has fundamentally changed how we view and interpret the landscape. Often subtle features can be seen in the high-resolution Lidar topography data that are not visible on aerial photography, topographic maps, and in some cases right under our feet." Lidar uses technology that is like a police radar gun where the instrument emits an intense, focused beam... (read more)
2019-11-15 09:35:08

Students Help to Put Vulnerable Countries on the Map

The Friends of Médecins Sans Frontières society at Imperial hosted a 'mapathon' to help to improve maps of vulnerable countries. Over 70 members of the public and students came to Imperial College London to attend the student-run mapathon, which tasked participants with making online map improvements to help disaster risk assessment and energy management in vulnerable parts of the world. Accurate maps can also help with vaccination control, as well as wider healthcare and aid delivery.  The Imperial event was organised by Imperial’s Friends of Médecins Sans Frontières (MSF) student society. Kishan Patel, a fourth-year medical student and vice-president of the... (read more)
2019-11-13 03:34:36

How Drones Contribute to Mapping Iceland's Disappearing Glaciers

A new 3D process which involves old aerial photos and modern-day drone photography has shed light on accelerated ice loss from some of Iceland's largest glaciers. Dr Kieran Baxter from the UK's University of Dundee has created composite images that compare views from 1980s aerial surveys to modern-day photos captured with the help of state-of-the-art technology. This revolutionary technique has allowed Dr Baxter to document the dramatic ice loss on a group of outlet glaciers on the south side of Vatnajökull, one of the largest ice caps in Europe. Aerial mapping photographs taken by the National Land Survey of Iceland... (read more)
2019-11-12 10:35:03

Challenging High-accuracy Airborne Lidar Mapping Mission in Greenland

Denmark-based company Airborne Lidar Mapping A/S conducted a demanding data acquisition project in the summer of 2019. The purpose of the resulting data was to enable digital terrain models and to update existing base maps of the cities Nuuk, Sisimiut, Ilulissat, Qaqortoq and Aasiaat in Greenland. The northernmost city is Ilulissat, which is situated 350km north of the Arctic Circle. Several anomalous parameters were involved in the planning of the mission in comparison to typical Lidar aerial mapping missions. The arctic climate, the remote location and the size of the island necessitated arctic survival skills as well as arctic-proof communication... (read more)
2019-11-11 11:06:46

Smart Parking in Megacities

App Based on Mobile Mapping Point Clouds and Imagery
Did you know that you can waste a week or more per year hunting for a parking space in busy cities? Nowadays, smart parking apps offer a much-needed answer to the problem – and mobile mapping point clouds and imagery are core ingredients of the solution. Besides saving time by guiding you straight to an available spot close to your destination, smart parking apps also reduce unnecessary fuel consumption, air pollution and greenhouse gas emissions. One such app is AppyParking by London-based AppyWay. The AppyParking app allows users to see all on-street and off-street parking areas, restrictions and operating hours.... (read more)
2019-11-08 09:45:00

Kresimir Kusevic

Kresimir Kusevic is technical director at 6T3, a company that develops mobile mapping Lidar systems measure up to two million points per second. 6T3 is specialized in surveying Formula 1 racetracks, mapping military test ranges and conducting road surveys. Kusevic received his Master’s in Geodesy Engineering from the University of Zagreb, Croatia, in 1990. (read more)
2019-11-06 09:19:08

The Age of Mobile Mapping

Looking back over the past 30 years, it’s hard to believe just how far we’ve come in such a relatively short space of time. Geomatics students in the mid-1980s were exposed to GPS test satellites, the first GPS receivers and the enormous potential that GPS offered the geomatics community (who had already perfected what could be done with the Transit satellite system). With unprecedented absolute accuracy and an impeccable timing mechanism, GPS clearly offered a quantum leap in geomatics capabilities. Two decades later, Lidar – and in particular mobile terrestrial Lidar – seemed to represent the next quantum leap in... (read more)
2019-11-06 09:17:41

Towards Smaller and Smarter Solutions

Reflections on Intergeo 2019
Intergeo is a leading annual industry showcase where geospatial professionals gain an excellent impression of the latest innovations. On the brink of a new decade, Intergeo 2019 gave us a glimpse of the future. In general, we can conclude that solutions are getting smaller and smarter, and there are some new kids on the block. But with all the buzz around machine learning and artificial intelligence, how can we cut through the hype to get the most out of the rapidly advancing technology? One thing was crystal clear at this year’s Intergeo: the unmanned aerial vehicle (UAV or ‘drone’) has... (read more)
2019-11-05 01:06:25

ESA Employs CORS Networks for Global Error Mapping

As of today, there are more than five billion satnav devices on Earth. Along with smartphones and mobile receivers, this figure includes networks of fixed receiver stations, used to improve accuracy. An ESA-led project will harness these networks to provide an ongoing overview of satnav performance from the global to national and regional scale. “The general assumption is that global navigation satellite system (GNSS) services can always be relied on, which is true 99% of the time,” comments Michael Pattinson of Nottingham Scientific in the UK, which is developing this new project for the European Space Agency (ESA). "That’s fine... (read more)
2019-11-04 10:27:12
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