GeoChirp 3D Sub-bottom Profiler Delivered to China

UK-based Kongsberg GeoActoustics has delivered a GeoChirp 3D high resolution sub-bottom profiler to China. The First Institute of Oceanography (FIO), in Qingdao, is its first commercial customer. China’s internationally reputed research institution is looking forward to applying the technology in its line of research. The product provides three-dimensional acoustical images of shallow sub-seabed structures and buried objects. It transfers the principles of conventional 3D reflection seismics, used in hydrocarbon exploration, to high--resolution chirp sub-bottom profiler technology. It has been used in a wide variety of applications, including marine archaeology, imaging buried wrecks in the UK; marine geology, researching landslide mechanisms... (read more)
2014-05-06 09:48:18

General Acoustics’ Sub-Bottom Profiler at US Hydro 2007

The “SUBPRO 1210” Sub-Bottom Profiler will be featured at the US Hydro Conference from 14th to 17th May at booth 35, which is shared with General Acoustics’ US representative Seafloor Systems. The Sub-Bottom Profiler operates with 12 kHz and a peak power of up to 10 kW. The system shows solutions for many applications and different tasks. Especially the use in very shallow water starting at 1.5m, the high resolution and the 10m penetration in sand will surprise and excite the visitors. General Acoustics also will exhibit its tide and wave gauge LOG_aLevel, which is used by the US Army... (read more)
2007-04-30 12:00:00

First RDI ‘Streampro’ Current Profiler Delivery to WLB

ASICON has delivered its first ‘Streampro’ current profiler to the ‘Waterbouwkundig Laboratorium Borgerhout – WLB’, who is in charge of field measurements on the Flemish waterways. The new measuring equipment, comprising a very compact catamaran boat with ADCP, enables fast and accurate total discharge and current velocity profile measurements, even in the smallest rivers. In comparison to traditional  measuring systems (e.g. mechanical flow meters), the savings in time and efforts deployed on-site are substantial, and the accuracy of results, which are immediately available, are not comparable to standard calculation methods. Compared to other profilers of similar design but other manufacturers,... (read more)
2007-04-27 09:35:23

Acoustic Zooplankton Fish Profiler (AZFP) for Ecosystem Research

The US Naval Research Laboratory has purchased an Acoustic Zooplankton Fish Profiler (AZFP) autonomous echosounder to conduct observations of small zooplankton for ecosystem research. The internally powered scientific echosounder will store acoustic backscatter data. It will be mounted to an apparatus that will move the instrument up and down the water column in order to observe the dynamic behaviour of zooplankton. The technology employed by this echosounder uses multiple high frequencies to ensonify the small particle sizes of the zooplankton. The Navy will use the instrument to support ongoing research in coupled, ecosystem-circulation modelling, underwater optics and remote sensing.   (read more)
2017-10-20 11:28:02

AML’s Moving Vessel Profiler Selected for New Chinese Icebreaker

The Polar Research Institute of China (PRIC) has chosen AML Oceanographic’s MVP300 as the profiling system for its new icebreaker, Xuelong 2. “We chose MVP300 to collect high-density real-time CTD profiles without stopping the vessel. The MVP system also allows us to collect other scientific data such as chlorophyll A, dissolved oxygen, and turbidity. We will achieve better-quality data and save valuable vessel time,” said Shuoren Wang, project director. With numerous expedition objectives ranging from climate change research to natural resource studies, the MVP will be a critical system in support of realising the icebreaker’s mandate. “Xuelong 2 is equipped with... (read more)
2018-05-28 09:36:55

FlowQuest 75 Ultra Long-range Acoustic Current Profiler

LinkQuest recently rolled out the ultra long-range FlowQuest 75 acoustic current profiler, extending the same innovative and high performance acoustic Doppler technology to 75 kHz of operating frequency with ultra high power transmission.   The FlowQuest 75 acoustic current profiler is capable of reaching up to 900 metres in range with an accuracy of 1% +/- 5 mm/s, making it one of two acoustic current profilers available in the market capable of reaching such a long distance. The standard depth rating of the system is 800 metres with options for 1500, 3000 and 6000 metres. With its capability for significantly... (read more)
2007-06-20 04:02:50

BC Hydro Uses New Shallow Water Ice Profiler

ASL has introduced a new, smaller and more cost effective version of the Ice Profiler product for use in rivers and lakes at depths up to 10 metres. This new product, the Shallow Water Ice Profiler (SWIP), provides real time output and, because it is intended for shallow water applications, does not require a pressure housing. In addition, all but essential components have been moved to a shore panel, thus minimising replacement costs if the underwater unit is lost to ice. BC Hydro of Burnaby, BC Canada, is using the SWIP on the Peace River where they own and operate... (read more)
2005-02-11 12:00:00

Acoustic Detection of Oil in the Water Column Using an Acoustic Zooplankton Fish Profiler

Laboratory experiments were carried out in July 2018 with ASL Environmental Sciences' multi-frequency Acoustic Zooplankton Fish Profiler (AZFP) at the Bureau of Safety and Environmental Enforcement's Ohmsett Oil Spill Response Research and Renewable Energy Facility outdoor saltwater wave tank. These experiments were conducted with the collaboration of the US Naval Research Laboratory (NRL) and the US Environmental Protection Agency (EPA), with funding provided by the US Bureau of Safety and Environmental Enforcement (BSEE). In these experiments, the AZFP was mounted to the bottom of the test tank and oil was injected at depths above the instrument with a series of different... (read more)
2019-02-04 10:17:33

Acoustic Zooplankton Fish Profiler Food Web Study of Keystone Arctic Marine Species

The Central and Arctic Division of Fisheries and Oceans Canada has plans to deploy an array of three multi-frequency (38, 125, 200 and 455kHz) Acoustic Zooplankton Fish Profilers (AZFPs), manufactured by ASL Environmental Sciences, in the Amundsen Gulf in 2018. Data retrieved from the array will be used in conjunction with winter and summer net sampling programmes to better understand the early life history of Arctic cod (Boreogadus saida) and the zooplankton copepod Calanus spp., both of which are keystone species in the Arctic marine food web. Because the instruments are battery powered and enclosed in pressure cases, they can... (read more)
2018-07-03 09:12:46

NOAA to Use ASL’s Acoustic Zooplankton Fish Profiler in Antarctic Krill Study

The Antarctic Ecosystem Research Division (AERD) of the NOAA Fisheries Service has managed and implemented the U.S. Antarctic Marine Living Resources (AMLR) programme since 1986. Data collected from this programme is used to advise the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) on establishing catch limits and the spatial distribution of these limits for the Antarctic krill fishery. From October 2018 onwards, gliders equipped with ASL Environmental Sciences’ Acoustic Zooplankton Fish Profilers (AZFP) will gather standardised spatial and temporal data to better understand the consequences of overlap among krill, predators and the krill fishery, and provide other dynamic oceanic attributes of the... (read more)
2018-05-01 10:05:57
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