Recent Advances in Geodata Acquisition Technologies

No Information without Data
Today’s geodata acquisition technologies combine microprocessors, computer power, solid state drives, complementary metal-oxide-semiconductor (CMOS) sensors, miniaturisation and many more developments. But demand is just as important as supply, and demand is rapidly increasing in our changing world. Read on for details of recent advances in geodata acquisition technologies. In today's world, we are seeing metropolises cluster to form megalopolises, climate change threatens humans, land and livestock in low-lying areas such as river deltas and valleys, and massively populated areas are prone to earthquakes and landslides. All of these factors are increasing the demand for geodata acquisition. This article starts with total stations, continues... (read more)
2016-08-08 09:48:14

Towards Cadastre 2034

International Experts Speak Out
To what degree have the objectives of Cadastre 2014 been accomplished? What are the societal and technological dynamics that may affect the international practice of land administration over the coming twenty years? Bennett and co-authors from the University of Melbourne, Australia, have described six design elements relating to the role and nature of future cadastres, presented at the FIG 2010 congress in Sydney and published in GIM International (July 2010); an inspiring starting point for further dialogue. To encourage discussion we invited leading experts and practitioners to send us their own views and vision. We received no fewer than ten... (read more)
2010-09-07 04:38:43

The Relevance of Aerial Mapping in 2019 and Beyond

Modern Mapping Systems and Techniques
Reality 3D models, Lidar points clouds, superhigh-resolution aerial imagery and artificial intelligence from aerial imagery… these are just a few of the products derived from aerial mapping that the GIS sector takes for granted in 2019. Despite the plethora of high-resolution Earth observation satellites and the exponentially increasing impact of unmanned aerial vehicles (UAVs or 'drones') on the aerial mapping sector, most large and medium-scale ‘topographic’ or GIS map data is still derived from manned aircraft, whether fixed-wing or rotary. But the multitude of systems and processes can make selecting the correct aerial mapping technology a complicated and confusing process.... (read more)
2019-04-12 11:38:08

The Revolution of Drone-carried Sensors

GIM International interviews 3D Robotics
The world of professional unmanned aerial vehicles (UAVs or ‘drones’) is changing. It is a matter of ‘survival of the fittest’ in terms of the hardware aspect: UAV manufacturers. The interest is now visibly shifting towards payloads and software to capture, visualise and process the data; UAVs are the apparatus, but it’s the sensors and software that really count. GIM International decided to touch base with a company that serves as a good example of the current transformation, and spoke to Chris Anderson, CEO, and Daniel McKinnon, vice president, from 3D Robotics. Read the interview here. (By Wim van Wegen,... (read more)
2017-03-31 09:00:12

Free Satellite Data Creates New Commercial Applications

Market Growth Requires Effort
The National Satellite Data Portal, managed by the Netherlands Space Office (NSO), is an interesting phenomenon. Despite existing for just five years, its user base and their usage patterns have become so diverse that its level of success is already beyond quantification – and yet the organisation is convinced that the bulk of the market growth still lies ahead. NSO ensures that its customers and partners in The Netherlands can respond to new opportunities in a timely manner. Employing 28 people, the Netherlands Space Office is responsible for the execution of the Dutch space policy. 75% of its annual EUR100... (read more)
2017-12-07 08:23:34

Cartography for Everyone - You Too!

GIM International Interviews Dr David Fairbairn, Vice-President ICA Executive Committee
Since June 2004 ICA has been publishing a monthly one-page column in GIM International. Dr David Fairbairn is responsible for ensuring content for the ICA page and is himself a regular contributor. As vice-president he is further responsible for ensuring that ICA keeps an active eye on issues and paradigms affecting the practice of modern cartography. When was the International Cartographic Association (ICA) established and how is it organised in terms of structure? The International Cartographic Association was formally established in June 1959. But in fact it grew out of a series of international conferences addressing issues of common cartographic... (read more)
2005-12-29 12:00:00

Interacting with Big Geospatial Data

Methods for Virtual Exploration and Visual Analysis
Advances in capturing techniques such as laser scanning and photogrammetry have significantly increased the volume of geospatial datasets. Big geodata has become an important asset for analysis and decision-making, but also poses a challenge for state-of-the-art visualisation techniques. This article presents research results addressing this problem for the infrastructure and planetary science application domains. The methods discussed here enable users to fluently explore and efficiently analyse the growing wealth of geospatial data.  The data volume of 3D reconstructions is steadily growing for two reasons. Firstly, there is a demand to increase the accuracy of data acquisition, now reaching even sub-millimetre... (read more)
2017-04-20 09:29:33

National Mapping as a Service

Ordnance Survey Ireland Shows New Perspectives, Part 2
National mapping organisations from all over the world are interested to see how Ordnance Survey Ireland (OSi) is planning for its future. Not only has OSi re-engineered its work processes and implemented a multi-resolution data store to automate product and service delivery, but it has also developed a collaborative portal and is leading the way towards a National Mapping Agreement. OSi is now in the process of making ‘linked data’ available for all 50 million Irish real-world objects. Ordnance Survey Ireland (OSi) has a clear technical strategy for offering national mapping as a service. In its own words, OSi wants... (read more)
2017-01-09 09:58:00

A Spatial Turn in History

Using the Combined Space/Time Component
Geography and history are sister disciplines. In fact, geography as a field of scientific research evolved from the study of history. Whereas geographers have the perspective of space, historians consider change over time. This article features a fascinating and mutually beneficial emergent overlap between the two disciplines. Geospatial scientists tend to neglect the historical roots of the processes they study. Nevertheless, some (spatial) databases are now beginning to include time aspects. On the other hand, many historians overlook the importance of spatial elements in the evolution of events that interest them. Fortunately now, if rather late, there is rising awareness... (read more)
2005-05-03 12:00:00

Combining BIM and GIS for a Sustainable Society

Community-scale Assessment of Energy Performance
Nikken Sekkei Research Institute in Tokyo, Japan, has developed a vision for cities to help them choose an energy optimisation strategy for neighbourhoods comprising a variety of building types. The optimisation of energy consumption is approached from an area-wide standpoint. The added value of the method for city renewal programmes has been demonstrated based on a central district in the Japanese capital. Japan has low energy resources and a high population density. That provides extra stimulation to develop ecofriendly urban planning. City and environmental designs use low carbon footprint solutions as their starting point, and planners, urban designers, architects, engineers... (read more)
2018-01-10 09:50:02
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