New Tool for Shallow Water Bathymetry

Unabara, a manufacturer of innovative tools for shallow water hydrography and oceanography, has announced its Hydro-2F Multi-Frequency Synthetic Beam Bathymetric & Sea Floor Sonar. The new solution provides both 200Khz precision bathymetry and narrow-beam low-frequency bathymetry. Particularly suited for shallow waters, the user may field select a low acoustic frequency of 30, 28, 24, 18, 12, or 10Khz. As a supplement to the bathymetric data, the Hydro-2F provides acoustic backscatter data from the sea floor for Bottom Contrasting differences in sediment types. Hydrographic survey software With all electronics and transducer elements housed in a single below surface unit (BSU), the... (read more)
2018-01-09 09:22:32

Land and Sea Shallow-water Mapping

Optech, Canada, is releasing a compact shallow-water mapping solution for its line of ALTM Airborne Laser Terrain Mappers. The new ALTM Aquarius provides simultaneous terrestrial and water-depth measurement capability, enabling the collection of datasets that span the entire land-water interface to depths in excess of 10 metres. Available as a simple sensor head addition to the ALTM Gemini product line, or as a complete survey solution on its own, Aquarius offers a new capability to traditional airborne surveyors looking to add further value to their map product deliverables while maintaining their existing ALTM planning and processing workflows. According to Michael... (read more)
2011-06-01 09:20:04

New Profiling Instrument for Shallow Water

AML Oceanographic, Canada, is introducing a new profiling instrument at Ocean Business 2013. The Base•X is an entry-level shallow water logging instrument which offers performance at an attractive price. Designed for profiling in coastal waters, the instrument includes a shackle, a sensor cage, and an LED status indicator to simplify deployment preparation. High-speed 25Hz sampling ensures data resolution. Like all other X•Series instruments, the Base•X uses XchangeTM field-swappable sensors. The Base•X is available for use with conductivity, sound velocity, temperature, pressure, and turbidity XchangeTM sensors. This means that sensor heads can be shared with other instruments, regardless of instrument size or type. ... (read more)
2013-04-10 03:20:39

An Adaptable Survey ­Platform for Shallow Water

Bathymetric Charting of Nearshore, Harbour, Estuary and River Settings
High-resolution bathymetry and water quality surveys of shallow shelf and inland water bodies are an increasingly necessary part of environmental management with climate change pressures. This paper describes a new method for data acquisition using a small, stable, adaptable, single-operator survey platform. Development and natural (climate related) changes are placing an ever increasing pressure on our coasts, shallow marine shelves, estuaries, rivers, harbours and inland water bodies. In Europe these pressures have been recognised and attempts made to address the impacts under legislation such as the Water Framework Directive, which seeks to classify all water bodies by their health and... (read more)
2013-01-18 01:45:32

Shallow Water Bathymetry for South China Sea

EOMAP Asia Pacific has launched a detailed dataset for the islands in the South China Sea, generated by satellite-derived bathymetry (SDB) techniques. The islands of the South China Sea are several hundred kilometres away from the nearest coast and are surrounded by water deeper than 1,000m, which is assumed to hold extensive oil and gas reserves. The area is a disputed territory of several countries within the Asian region. Data about the underwater topography is outdated or not accessible. Instead of relying on acoustic or airborne methods to map the over 250 islands, atolls, cays, shoals, reefs and sandbanks, EOMAP... (read more)
2015-06-16 11:05:40

Effective Surveying Tool for Shallow-water Zones

Satellite-derived Bathymetry
A recent article provides an overview of satellite-derived bathymetry methods and how data can be integrated into survey campaigns, and showcases three use cases. Bathymetric data in shallow-water zones is of increasing importance to support various applications such as safety of navigation, reconnaissance surveys, coastal zone management or hydrodynamic modelling. A gap was identified between data demand, costs and the ability to map with ship and airborne sensors. This has led to the rise of a new tool to map shallow-water bathymetry using multispectral satellite image data, widely known as satellite-derived bathymetry (SDB). Strictly speaking, the methods to derive information... (read more)
2017-01-04 04:13:14

Z-Boat for Shallow-water Hydrographic Surveys

For hydrographic surveys in shallow inshore waters such as rivers, canals, lakes and ponds, access to the site can sometimes be the biggest headache of the entire survey. Driving a boat trailer to the survey site requires a wide access point and a convenient place to launch the boat. The Oceanscience Group (USA) has launched the Z-Boat 1800 portable remotely-operated survey boat that brings high-quality positioning and depth sounder instruments together on a convenient remote platform that can be launched and operated from practically anywhere. The Z-Boat is the first in a new line of remote survey systems to be... (read more)
2012-05-01 03:57:47

35th Shallow Water Multibeam Training Course 2004

The 35th Shallow Water Multibeam Training Course 2004, to be co-hosted by LSGI, The Hong Kong Polytechnic University & EGS (Asia) Ltd. will be held at the above university from 9th to 14th August. Highlights will include: World-recognised ‘course of excellence’ including 36 lectures and over 1,800 double-sided pages of lecture notes Lectures provided by four world-renowned swath specialists Demonstration of multibeam system Based on the success of over thirty previous courses run all over the world, topics to be covered will include: Review of underwater acoustics and overview of acoustic seabed mapping systems Multibeam principles and multibeam calibration methods... (read more)
2004-03-03 12:00:00

Underwater Technology Seminars Focus on Shallow Water Surveys

The Teledyne Marine Acoustic Imaging Group (TMAIG), consisting of RESON, BlueView and Odom Hydrographic, has opened registration for its Underwater Technology Seminars (UTS), taking place in Hamburg, Boston and Singapore. During the classroom training and live demo workshops, participants have an up-close experience with the latest software releases of PDS2000, ProViewer, ProMapper and other industry leading software suppliers, as well as in-depth training in Teledyne Marine's range of shallow water echosounder and sonar systems.   Each event is designed around three main components: paper presentations presented by industry experts, hands-on classroom training, and live demo workshops. Also ntertainment events and... (read more)
2014-06-19 09:04:10
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