Surveying in the Valley of the Temples

Use of Full-waveform TLS in 3D Modelling of an Unstable Area
Full-waveform terrestrial laser scanning enables high-precision 3D topographic modelling of unstable rock valleys that is valuable for various geomorphological investigations. The area below the archaeological site of Temple of Juno in Agrigento, Sicily, is characterised by the presence of large sections of rock that have fallen down from the upper ridge. In this context, full-waveform laser scanning technology was tested for the production of a highly detailed 3D topographic model at two resolutions (2cm and 20cm) for simulating potential rockfall paths at the site. Along a long ridge outside the city of Agrigento, Sicily, is a UNESCO World Heritage Site,... (read more)
2014-11-03 10:47:25

Using 3D Printer Technology to Represent Survey Information

The Art of Bathymetry
Great advancements have been made in three dimensional printing over the last few years and have made an impressionable impact across a variety of industries. 3D printing's versatility can be incorporated into any industry that has some form of three dimensional design. An exciting application is to model point clouds from survey techniques to create three dimensional scaled models for visualisation and communication. This article explores a new medium using 3D printed technology.  (By Andrew Ternes, Port of Melbourne and Dr Daniel Ierodiaconou, Deakin University, Australia) Over the last few years great advancements have been made to all forms of... (read more)
2016-12-15 11:14:53

Monitoring Coastal Erosion with UAV Lidar

Comprehensive Surveying of Coastal Topography
The French Mediterranean coast is a complex natural environment where geology, climate and the sea interact and continuously reshape the landscape. Erosion and the availability of drinking water are two major coastal management issues that necessitate precise monitoring of the morphological changes to the shoreline. UAV Lidar is being used in this region to produce comprehensive topographic surveys with unprecedented productivity and level of detail. Several Lidar surveys are planned over the next two years. Read on for details of the context, technical setup and results of the very first survey which took place in January 2018. In the relatively... (read more)
2018-03-15 11:10:02

Unmanned Aerial Vehicles for Glaciological Studies

Airborne Survey of Fountain Glacier’s Terminus Region
In July of 2010, researchers from the Department of Geography at the University of Calgary used a lightweight unmanned aerial vehicle (UAV) to carry out an airborne survey of the terminus region of Fountain Glacier on Bylot Island, in the Canadian Arctic. The survey comprised 16 flight lines, with a total of 148 photos being obtained from an average height of 300m above the glacier surface. A detailed surface model of the glacier and a 10cm resolution orthophoto were produced. The results from this survey will be used to quantify future changes in glacier mass and changes to surface flow... (read more)
2010-10-04 04:23:12

GNSS and Heavy Equipment

Financial Benefits of Telematics and Machine Control
Heavy equipment represents a major capital cost for companies in industries such as construction and agriculture. In recent years Global Navigation Satellite System (GNSS) technology, which uses signals from US Global Positioning System and the Russian Glonass satellite system constellations, has been used to improve fleet efficiency. Many companies may hesitate to invest in the technology because management is unaware of its benefits. Such hesitation has only increased during the current global economic downturn. However, recent evidence has emerged to demonstrate the measurable impact GNSS technology may have on company profits.   Equipment telematics, the wireless exchange of electronic information... (read more)
2009-09-29 03:14:51

Intergeo 2007

Knowledge and Action for Planet Earth
2007 marked the thirteenth consecutive annual Intergeo. The venue for this major conference and trade-fair for geodesy, geoinformation and land management, held this year from 24th to 28th September, shifts from year to year, always within the boundaries of Germany. This time the train stopped at Leipzig. The event is organised by HINTE GmbH in association with the German Association of Surveying (DVW), and this year took place in conjunction with the fifty-fifth German Cartographer's Day. The event made clearer than ever that geo-data acquisition is a booming industry. All things considered, including current financial figures, vendors of data acquisition... (read more)
2007-10-02 10:53:43

UAS Campus Survey Project

Students Capturing Spatial Information Needs
Texas A&M University-Corpus Christi, home to the largest geomatics undergraduate programme in Texas, USA, is currently undergoing a major university expansion. Both the main Island campus and the Momentum campus, which is a smaller developing campus, are undergoing extensive construction projects. The university’s Conrad Blucher Institute for Surveying and Science (CBI) was tasked with devising a comprehensive way to capture the spatial information needs related to the expansion. This effort is ongoing and is being conducted by students, providing them with a unique survey experience. The initial task was to perform a complete ground survey of all existing infrastructure at... (read more)
2014-11-03 11:30:59

5 Challenges When Selecting Drones for Mapping

The Importance of Working with the Right Equipment
Every mapping project is unique; even within the same industry, each project will have its own distinct challenges. Selecting the right equipment is therefore key to getting the job done. Unmanned aerial vehicles (UAVs or ‘drones’) have emerged as a solution for many mapping and surveying projects. This article elaborates on five important challenges that should be considered when finding out which type of drone is the best fit. The article includes practical examples based on a recent mapping project on Silhouette Island in the Seychelles. Silhouette Island is the third-largest island in the Seychelles, located in the Indian Ocean. The... (read more)
2018-03-07 03:01:04

Third Training Course in Topography for Young Surveyors

The third International and Professional Training Course for Surveyors that took place in Athens, Greece, from 3rd to 14th October 2011 ended with great success and didactic results for the participants. The course was arranged by the Consiglio Nazionale Geometri e Geometri Laureati in cooperation with the Hellenic Association of Rural and Surveying Engineers and supported by Geoweb. The previous two courses were held in Rome, Italy, in 2006 and 2010.     "Young surveyors are the future of our profession," declared Fausto Savodi, President of the Italian National Council of Surveyors. "A course that is a tribute to the... (read more)
2011-11-22 12:00:00

Three Shows in a Row

The cusp carrying winter into spring saw three interesting geomatics shows across the USA from east to west. Tom Gibson, editor-in-chief of our US sister magazine, Professional Surveyor, visited one after the other and sent us this report.<P>   The Annual Conference and Technology Exhibition of American Congress on Surveying and Mapping (ACSM) took place at Spokane Convention Center in Washington, attended by about 1,550 people, up slightly on last year. More Work As usual the conference featured a slew of workshops. Gavin Schrock discussed GPS Communications by network transportation of RTCM via internet protocol (NTRIP). NTRIP is the most... (read more)
2008-05-20 12:00:00
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