Integrating UAS and Multibeam Echosounder Data

Creating a 3D Landscape Model of a Gravel Quarry in Germany
Knowing the volume of material present in a gravel quarry can make the difference between profit and loss. A gravel quarry in Hartheim am Rhein, southwest Germany, is partially covered by artificial lakes. To determine the volumes of the above-water gravel dumping grounds and to map the bottoms of the lakes, high-precision data captured by an unmanned aerial system (UAS) was combined with multibeam echosounder data obtained by boat. Read the full article for a description of acquisition of the two types of data, how they were integrated and the benefits for the mining company. A gravel quarry is associated with diggers, rough... (read more)
2016-04-25 10:08:32

Seafloor Systems Expands Sales Support Services in Latin America

Seafloor Systems has announced the appointment of Mauro Romani as sales support engineer for the Latin American market. Mr Romani, who previously served as a geotechnical equipment specialist for Golder Associates based in Lima, Peru, brings his customer service, sales engineering and technical support experience into this new position, reporting to Josh Grava, vice president of sales. He will directly support dealers and customers in Latin America with sales and training as well as product demonstrations for the Seafloor Systems range of echosounders and remote and autonomous survey vehicles. Mr Romani will be based in Lima and can be contacted via telephone (+51... (read more)
2016-09-15 01:19:37

Geo-matching.com Adds Rental Companies and Dealers

Geo-matching.com has recently added rental companies and dealers to its overview of products and solutions. Besides detailed information about the manufacturers of products and brands, Geo-matching.com users can now also find an overview of the companies that rent and/or deal in them and can request information from the relevant suppliers directly. Check out the Geo-Swath Plus Compact 500 kHz multibeam echosounder to see rental and dealer opportunities. Rental products and dealers are already listed for several brands, including FARO, AML Oceanographic, Valeport, RIEGL, Kongsberg Maritime and various others. Moreover, it is now possible to search Geo-matching.com based on operating region,... (read more)
2016-02-26 11:48:19

Using the Apache Unmanned Survey Vessel

Techniques in Bathymetric Survey
This paper explores the various features of the Apache USV series for efficient seafloor-level mapping. The CHCNAV hydrographic survey software is used for data recording and analysis. It provides results in the form of 3D models of the ground, contours and depth. (This story is brought to you by CHCNAV) Bathymetry is the study and mapping of the seabed or lake bed. It consists of obtaining measurements of the depth of the ocean or lakes and is equivalent to the mapping of the Earth’s topography. In general, only limited information is known about the seabed and lake beds. Existing maps... (read more)
2020-08-05 10:38:58

UAVs: The Deceptive Rise to Disruption in the Geospatial Industry

The period where exponential growth remains unnoticed following the inception of innovation is classified as ‘deception’. The year 1849 inaugurated the birth of the unmanned aerial vehicle (UAV or ‘drone’), producing a deceptive impact on the industry. Today, the use of consumer UAVs for data acquisition is quickly approaching its zenith, allowing for a broader scale of applications. (By Jonathan McCollin, University of the West Indies) The early use of consumer UAVs typically included videography. The move towards a photogrammetric approach occurred with the influx of mapping software, aimed at small-scale photogrammetry. These applications allowed for an autonomous, easy-to-use alternative... (read more)
2017-01-31 04:05:52

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

Combining Hydrography and UAV Photogrammetry for Lake Volume Calculation

Creating a 3D Model for Volume Calculation with Boat and UAV
What is the best way to generate a high-precision 3D model to estimate the storage capacity of a lake that is surrounded by mountains? Rapid weather changes, low clouds and steep mountainsides demand a sensible approach with the right equipment. This article provides insights into the surveying process of a lake mapping project including the methods used to create a 3D model for the generation of a precise map with elevation lines. (By Benjamin Federmann, Benjamin Busse and Kim Schlüter, Germany) Situated at 848 metres above sea level in the Swiss Alps, created by an ancient rockslide and flanked by... (read more)
2017-03-29 09:05:41

Mapping the Seafloor with Remote Sensing and Satellite Imagery

An Analysis of the Techniques and Benefits of These Methods
70% of the Earth is covered by water, but so far just 7% of it has been surveyed (Mars, Venus and the Moon are better surveyed). Hydrography as a science has changed dramatically since the first measurements were made by Alexander Dalrymple and James Cook with lead lines and sextants. Singlebeam echosounders were invented in the 1920s – a technology still used today for mapping the seafloor. This method of using echosounders can produce very high-resolution bathymetric data but the high operational costs and the slow working process make it economically unsuitable for covering large areas. However, with the ongoing expenses of... (read more)
2018-06-19 09:23:54

Point Clouds (1)

The Functionalities of Processing Software
Whether based on Lidar, photogrammetry, radar, sonar or other remote sensors, systems for geodata acquisition create millions or even billions of 3D points. To be useful, the data needs to be organised, combined, georeferenced, measured and analysed, and that in turn requires software. This article first defines what point clouds are and identifies their sources. It then goes on to examine software functionalities such as visualisation and editing. The July 2014 edition of GIM International will be a themed issue covering collection and processing of point clouds and hence will include a selection of the many software packages currently available.... (read more)
2014-06-06 03:29:52

'Great Stories Start Here'

Point Clouds Everywhere at HxGN Live 2014
This year’s HxGN Live, Hexagon Metrology’s annual user conference, was once again held in Las Vegas, USA, from 2-6 June. Its maxim: ‘Great Stories Start Here’. From a geomatics point of view the event can be typified as ‘point clouds everywhere’. This report focuses on their creation by airborne Lidar, mobile mapping, trolleys and handhelds. Although Leica Geosystems, part of Hexagon, has been a prominent manufacturer of airborne Lidar systems for decades, in October 2013 it acquired Swedish Airborne Hydrograph AB (AHAB) – a small firm which has been specialised in bathymetric airborne Lidar for over 20 years. Today, AHAB... (read more)
2014-09-01 11:59:10
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