Fit-for-purpose Capacity Building in Mozambique

The Mozambican Land Administration System is still far from complete due to colonial legacy and decades of civil war. The government faces a major challenge: capturing 5 million plots of land with corresponding user rights in the next five years. The enormous task of registering all those landholders has two main components: the registering itself and the organizing of the information. Fit-for-purpose approach The land registry organization of Mozambique, DINAT (Direcção Nacional de Terras), wants to catch up in a targeted, fast and affordable way. To cope with the enormous amount of plots, many people must be trained. For that,... (read more)
2019-12-10 11:17:48

Copernicus Data and AI to Combat Climate Change

Europe’s Earth observation programme Copernicus provides open access to up-to-date information on topics such as climate and land management. Such data holds huge potential for companies, entrepreneurs and start-ups to develop new solutions to tackle global challenges. Green City Watch combines big data from space with artificial intelligence (AI) to measure the quality of urban green space. This pioneering technology was honoured as the 2019 Overall Winner of the international innovation competition Copernicus Masters during its Awards Ceremony on 4 December in Helsinki, Finland. According to research published by the United Nations Office for Disaster Risk Reduction in October 2018,... (read more)
2019-12-05 10:17:22

7 Questions about Hydrography and Its Relevance for Geomatics

The Perfect Combination of Science and Technology Applied to the Sea
According to NOAA (The U.S. National Oceanic and Atmospheric Administration), hydrography is the science that measures and describes the physical features of the navigable portion of the Earth's surface and adjoining coastal areas. It can be seen as an application area within the geospatial engineering discipline. We asked 7 questions to Laurent Kerléguer, the new director general of the French Hydrographic Office (Shom), to learn more about the world of hydrography. Chief weapons engineer Laurent Kerléguer was appointed director-general of Shom, the French hydrographic office, in July 2019. In this interview, GIM International asks him about the latest developments regarding the... (read more)
2019-11-26 03:24:07

How Machine Learning Makes Cadastral Mapping Faster and Cheaper

Estimates show that nearly 75% of the world's population still do not have access to formally accepted land registration systems. According to University of Twente PhD student Sophie Crommelinck, cadastral mapping can be automated using an intelligent and interactive computer program she developed and described in her thesis. As a result, parcel delimitation takes 38% less time. A large part of the world does not yet have reliable land registration systems, including several East African countries. The lack of cadastrally registered land rights leads to uncertainty about land ownership and sometimes to life-threatening conflicts. Documenting borders is often the most... (read more)
2019-11-22 10:45:04

Galileo Satellites to Enable More Efficient Cadastral Land Surveys

Researchers have received a H2020 grant to further improve the availability of the Galileo system and to integrate land surveys in the cadastral workflow. With this new European global navigation satellite system (GNSS), cadastral measurements can be conducted real time in the field. This possibility for on-field boundary determination makes conducting cadastral surveys more efficient. Researcher Edward Verbree explains: “Every system has its own accuracy. For most applications, accuracy to a few metres is perfectly agreeable. For cadastral applications however, every centimetre counts. With this new system, we can easily achieve centimetre accuracy and measure quickly, too. That means the... (read more)
2019-11-20 11:55:51

CORS Networks 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 continuously operating receiver stations (CORS) used to improve accuracy. A 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, which is developing this new project for ESA. “That’s fine for the... (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) in the USA 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, Lidar has fundamentally changed how we view and interpret the landscape," says John Esch, geology specialist. "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 emits an intense, focused beam of light at the ground and measures the time... (read more)
2019-11-15 09:35:08

Using PPP Corrections in Precise Real-time Applications

Minding the Gaps
Satellite-delivered GNSS correction services can be used in many real-time applications where real-time kinematic (RTK) and virtual reference stations (VRS) are not available. In areas without regular communication systems, satellite-broadcast PPP corrections can deliver centimetre-level positioning worldwide in real time. While geospatial professionals who use RTK and VRS enjoy reliable, cost-effective performance in a broad array of tasks, there are many instances where conditions conspire to make working in real time difficult or even impossible. For example, hilly terrain may block radio signals from an RTK base station, while inconsistent cellular coverage can disrupt or cut off communications with the... (read more)
2019-11-13 02:48:36

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

Trimble Launches New R12 GNSS Receiver

Trimble has introduced the Trimble R12 GNSS receiver, a high-performance global navigation satellite system (GNSS) surveying solution. Powered by an all new real-time kinematic (RTK) and Trimble RTX positioning engine, it features innovative Trimble ProPoint GNSS technology that empowers land surveyors to quickly measure more points in more places than ever before. Surveyors who work in challenging GNSS environments can use the Trimble R12 receiver to help reduce both the time in the field and the need for conventional techniques such as using a total station. The new Trimble ProPoint GNSS technology allows for flexible signal management, which helps mitigate the effects of... (read more)
2019-11-06 09:50:53
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