Monday, September 25, 2017

Hydrography

Publication Date: Jul 2015

Categories

  • Single beam
  • Multi beam
  • Seafloor mapping and Cartography
  • Electronic charting & GIS
  • Hydrographic Sonar software
  • Seismic vessels
  • Subsea pipeline & inspection
  • Survey companies
  • GPS
  • Data Collection Workflow

Special Reports and Whitepapers

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page 2

Introducing Teledyne Marine Multibeam Echosounder and Sonar Solutions

Teledyne Marine is a leading provider of advanced multibeam echosounder and sonar solutions servicing a variety of markets and applications. By delivering the most advanced acoustic technology solutions Teledyne Marine provides high resolution, accurate, dependable, long lasting solutions to our customers.

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page 12

How to produce bathymetric products within one day after surveying.

The Port of Rotterdam is an open deep-water port in theriver estuary Maas. The location of the port in an estuarineenvironment necessitates maintenance dredging due tosiltation ’attacks’ from both tidal current and riverdischarge. Siltation from the sea, coming in during theflood tide and eroded materials from the hinterlandtransported in the river flow results in a total of 6.000.000m3 of maintenance dredging works in the port basinsevery year.

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page 16

Implementation of a Multibeam Echosounder and Terrestrial LiDAR in Support of a Dam Spillway Construction Project

Nestled Northeast of the city of Folsom, California, sits the 11,450-acre Folsom Lake—formed by an existing dam on the North Fork and South Fork of the American River. It is responsible for providing irrigation, drinking water, and electricity to parts of California, as well as flood prevention for the areas situated south of the lake. Despite the low risk of a damaging occurrence, it was decided (under the Reclamation Safety of Dams Act) that preventive measures needed to be taken to protect those living downstream. Construction of a new auxiliary spillway is in progress, which will provide a means for a steady water outflow during an increased water flow event. Carried out in phases, this project requires surveys from land and water to ensure successful completion. The $900-million cooperative project between the U.S. Army Corps of Engineers, U.S. Department of the Interior, and Bureau of Reclamation will assist the Sacramento region to achieve the 200-year level of flood protection.Completion of the auxiliary spillway is scheduled for late 2017.

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High Quality Surveys Using hybrid AUVs and state of the art hydrographic data acquisition software

The acquisition of QPS by Saab opened up for the possibility for closer integration between the Saab AUV platforms and the data acquisition software from QPS. This resulted in a joint project in 2014 to demonstrate a high end survey system that was capable of very accurate combined sonar, multibeam bathymetry, video and subbottom profiling. The system is based on Saabs hovering AUV capable of very stable autonomous close up scanning of both structures and bottom features. The QPS data acquisition software ensures that all data is collected together with navigation data in an optimal way for precision and further processing. The result is merged data of high quality that is easily evaluated and exported.

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Data•Xchange Delivers

AML Oceanographic’s recently released WiFi & GPS device, Data•Xchange, is saving time for hydrographers around the world by transferring and exporting data wirelessly and automatically.

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page 34

HYPACK Inc.: Experts in Hydrographic Software

HYPACK, Inc. has been a world leader in software development for the hydrographic and dredging industry since 1984. HYPACK® is the most widely used hydrographic software package with over 10,000 users worldwide. It provides everything necessary to fulfill your singlebeam, side scan, and multibeam survey requirements. This is why?

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New Algorithm for Multibeam Imagery Processing

Over the past years, multibeam echo sounders are increasingly being used not only to obtain water depth information, but also to record backscatter response. This information recorded by the sonar is very useful in studies on marine geology (Anderson et al., 2008; Harahap et al., 2010), underwater works and military applications, as it is possible to relate the acoustic intensity response with ocean floor properties(Applied Physics Laboratory, 1994; Eleftherakis et al., 2012; Huang et al., 2011).

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LOW-LOGISITICS MARINE SYSTEMS ENABLE NEW APPROACHES TO SURVEY

Unmanned maritime vehicles (UMVs) have been under development for decades. Since the late 1990s, several systems have evolved beyond research labs and have become commercial realities. These tools are now in routine use for scientific, commercial and military applications.

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