Software Solution for Shallow Water Surveys

The EIVA NaviSuite software suite now includes a single-user sensor data acquisition and processing bundle for shallow water surveys, NaviSuite Kuda. The products and solutions presented at the Shallow Survey 2015 international conference, which is taking place from 14-18 September at Plymouth University, UK, include EIVA’s NaviSuite Kuda, which was launched on 10 September. NaviSuite Kuda is a single-user bundle dedicated to shallow water surveys. Its price matches the budget of small companies, while allowing them to benefit from the advanced features of the NaviSuite software solutions relevant to this type of operation by offering all the necessary tools to... (read more)
2015-09-11 09:16:00

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

Very Shallow Water Survey - A New Approach

Multibeam Echo Sounder and Terrestrial Laser Scanner Data Comparison
Hydrographic surveys in very shallow waters can have several applications such as nautical chart updating, performing environmental monitoring and characterisation, determination of dredged volumes, establishing navigational channels or defining general coastlines. When full bottom search is required, surveys in such areas will involve many hours of work, require several specialised technicians and, in most cases, the use of expensive equipment. Therefore, in order to gather coastline altimetry data, many hours can be spent conducting survey lines with GNSS equipment, sometimes in unfriendly and rough terrain. In order to find a way to optimise these tasks, Leica Geosystems Portugal (LG) and... (read more)
2015-10-12 03:54:25

Pelydryn Buys CHIROPTERA II for Shallow Water Survey

Pelydryn, UK, has bought the CHIROPTERA II topo-bathy Lidar system from Airborne Hydrography and Leica Geosystems. Introduced in early March 2014, CHIROPTERA II is a Lidar system which simultaneously captures the full waveform in both the 35kHz bathymetric channel and the 500kHz topographic channel. The system targets the growing need for high-resolution accurate topographic and bathymetric surveys in the coastal zone and other shallow water regions, achieving depths of up to 15 metres. In the Chiroptera system, the Lidar data from land is recorded and stored separately from the bathymetry data. The Chiroptera uses two Lidars, one red laser for... (read more)
2014-07-25 12:04:09

3D Sidescan Sonar Test for Shallow Water Mapping

The Hollands Noorderkwartier water board is to improved the Markermeer dikes between Hoorn and Durgerdam in The Netherlands. Dutch firm Boskalis is surveying on land and underwater to draw up a project plan. The obvious survey equipment, a multibeam echosounder, is not suitable for measuring close to the shore due to the shallow water. A potential solution has been found with the Ping DSP 3DSS-DX-540 3D sidescan sonar. This instrument provides a high-resolution 3D image of the seafloor and objects in the water column. Its capacity up to 14 times water depth is an advantage. The 3DSS-DX-450 is a compact 3D... (read more)
2016-08-01 02:31:25
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