UAS at the Beach

Merging UAS DEM and Bathymetric Depths to Monitor Breakwater Subsidence and Erosion
The North Sea Canal connects the Port of Amsterdam with the sea. The two breakwaters at the mouth of the harbour in IJmuiden, The Netherlands, are usually monitored on displacement of basalt block by airborne Lidar and on subsidence by annual levelling of permanent points. Could a camera-equipped UAS survey conducted simultaneously with a bathymetric survey provide information of equivalent accuracy? Here, the author shows that it could. Time series of 3D models of the breakwaters are useful for erosion and subsidence monitoring. Monitoring of the breakwaters in IJmuiden, The Netherlands, is currently carried out using airborne Lidar together with... (read more)
2014-07-17 02:36:42

Using UAS for Marine Samples

For the first time, a team of scientists from GEOMAR Helmholtz Center for Ocean Research Kiel, Germany, has successfully used a drone to collect marine air and water samples. The objective of the study is to better understand the role of coastal waters as a source of reactive trace gases, which are important for chemical processes in the atmosphere and the climate. The ‘LASSO’ project is funded by the Kiel Cluster of Excellence ‘The Future Ocean’. Unmanned aerial vehicles (UAS), are used for the production of photos and videos and increasingly for more complex tasks. These mobile platforms are increasingly... (read more)
2017-04-18 09:26:19

Benefits of UAS Breakwater Monitoring

The North Sea Canal in The Netherlands connects the Port of Amsterdam with the sea. The two breakwaters at the mouth of the harbour in IJmuiden are usually monitored on displacement of basalt block by airborne Lidar and on subsidence by annual levelling of permanent points. Could a camera-equipped UAS survey conducted simultaneously with a bathymetric survey provide information of equivalent accuracy? A recent study has shown that it could: time series of 3D models of the breakwaters are useful for erosion and subsidence monitoring. By Pieter Franken, Skeye BV, The Netherlands Monitoring of the breakwaters at IJmuiden, The Netherlands,... (read more)
2014-08-05 10:45:21

UK Storm Surge Impacts Mapped Using UAS

One year on from the biggest UK storm surge for 60 years, new aerial photos have revealed details of breaches to the natural and manmade coastal defences on part of the East Anglian coastline. Researchers from the University of East Anglia (UEA) and the Centre for Environment, Fisheries & Aquaculture Science (Cefas) are mapping selected areas hit by the surge on 5 December 2013 as part of a short-term project, funded by Natural Environment Research Council (NERC), to better understand the initial environmental and societal impacts caused by the 2013 storm surge and the resulting saltwater flooding. The Cefas aerial... (read more)
2014-12-10 10:17:29

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

UAS-to-ROV Wireless Communications Demonstrated

Subsea wireless automation provider WFS Technologies and marine rental equipment specialist Seatronics demonstrated UAS-to-ROV wireless communications at a Subsea Internet of Things event in Houston, USA. The demonstration took place on 15 February 2017 at the Delta SubSea (DSS) test tank facility and was attended by representatives from Shell, ExxonMobil, Chevron and BP.  Seatooth wireless controllers were integrated with a Seatronics Predator II Inspection Class ROV and a DJI Inspire drone. 2-way data communications between the ROV and the drone were demonstrated while the ROV was submerged in a test tank and the drone flew overhead. Using proven subsea wireless automation... (read more)
2017-03-23 01:23:08

Jamming Robustness Features in Septentrio’s AsteRx-m2 and AsteRx-m2 UAS

Septentrio has launched the AsteRx-m2 and AsteRx-m2 UAS OEM boards. These two OEM boards, which bring the latest in GNSS positioning to the market with interference mitigation technology all on ultra-low-power, will be showcased at AUVSI's Xponential 2017 in Dallas, Texas, USA. The credit-card-sized AsteRx-m2 and the AsteRx-m2 UAS offer all-in-view multi-frequency, multi-constellation tracking and centimetre-level RTK position accuracy for the lowest power of any comparable receiver. Additionally, the AsteRx-m2 and the AsteRx-m2 UAS can receive TerraStar satellite-based correction signals for PPP positioning. The AsteRx-m2 and the AsteRx-m2 UAS feature Septentrio’s AIM+ interference mitigation system, developed to suppress the widest... (read more)
2017-05-08 09:45:35

SurvTech Selects NEXUS 800 for Aerial Mapping

A NEXUS 800 UAS powered by HYPACK has been provided to the US southeastern geospatial solutions company SurvTech. The company will use the device to acquire upland data simultaneous with subaqueous data and make a seamless point cloud of upland and submerged data. The integration with the company’s heading RTK GPS, IMU, sonar and HYPACK was experienced as straightforward. President David O’Brien of SurvTech stated they have been collecting mobile LiDAR with the HYPACK solution from their boats and trucks and are extremely happy with the datasets. Choice of the NEXUS 800 UAS When planning to equip a UAV copter... (read more)
2017-01-26 09:41:34

Hydrographic Airborne Scanner Integrated in UAV

Schiebel and RIEGL Laser Measurement Systems, Austria, have successfully integrated the Schiebel CAMCOPTER S-100 Unmanned Air System (UAS) together with the RIEGL VQ-820-GU Hydrographic Airborne Sensor. The integration marks the first time that this new airborne sensor was flown on board of a UAV. The S-100 helicopter UAS carried a special Schiebel-made composite pod containing the sensor, the IMU-GNSS unit, the data recording and transfer unit as well as a digital camera, during the flight tests in Grossmittel, Austria, which were carried out this month. This fully integrated system thus enables acquisition of high-accuracy hydrographic and topographic data, even in... (read more)
2012-12-20 01:20:54

Oil Spill Detection Test in 'Operation Arctic Shield'

The Coast Guard Research and Development Center (RDC) led engineers and scientists from multiple Coast Guard units, other federal agencies and universities in evaluating methods to identify, track and respond to simulated oil spills off the North Slope of Alaska as part of Operation Arctic Shield 2013, from 9 to 14 September 2013.    Operating aboard Coast Guard Cutter Healy, the team deployed a variety of technologies that have been evaluated in temperate climates to assess their ability to perform operations under Arctic conditions. The tests included operation of two small unmanned aircraft systems (UAS), an unmanned underwater vehicle (UUV),... (read more)
2013-10-14 12:50:36
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