How to Derive Shallow-water Bathymetry Measurements from Satellites

TCarta Marine, a provider of marine geospatial products, is commercializing a new technique to derive highly accurate shallow-water bathymetry measurements from NASA’s ICESat-2 satellite data. The new methodology is being developed with funding from the National Science Foundation (NSF). In 2018, NSF awarded the company a Phase 1 Small Business Innovation Research (SBIR) grant to commercialize new satellite-derived bathymetric (SDB) measurement technologies. Referred to as Project Trident, the research focused on leveraging Artificial Intelligence (AI) – machine learning and computer vision – to determine shallow-water seafloor depth in variable water conditions. Bathymetric Data Extraction Tool “As participants in NASA’s Applied Users... (read more)
2020-01-16 10:01:58

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

Shallow Inland Water Bathymetry Meets IHO S-44 Special Order

Application of the Kongsberg GeoSwath System
For many years, the GeoSwath system from Kongsberg GeoAcoustics has been providing an efficient simultaneous swath bathymetry and sidescan seabed mapping solution with accuracies that meet the IHO S-44 Special Order standard for hydrographic surveys. GeoSwath systems have been fitted to a number of small crafts and have been utilised to conduct bathymetric surveys of lakes, ponds, dams and rivers. This article describes two of the vessels that have been employed to undertake this area of work. The use of Unmanned Surface Vessel (USVs) allows surveying in locations and situations in which deployment of conventional platforms is not practical or... (read more)
2018-02-27 01:01:18

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

Shallow Survey 2003

We Visited for You
Following her increased interest for the Australasian region, Hydro international visited the Shallow Survey 2003 Conference, held from 17th to 20th November 2003 in Sydney, Australlia. Over two hundred hydrographic specialists and people in one or other way involved in hydrography gathered together to listen to papers on aspects specific to hydrographic surveying in shallow to very shallow waters. It was the Third International Conference on high-resolution surveys in shallow water, which itself proved the value and specific interest of this type of conference. The first Shallow Survey Conference was held in Sydney in 1999, followed by a second in... (read more)
2008-01-01 01:00:00

Shallow Survey 2003

Interview with Dr Phil Chapple, Scientist, Conference Convenor, Australia
After completing a Bachelor of Science with Honours in Physics in 1983, Dr Phil Chapple worked in a laboratory of the Australian Defence Science & Technology Organisation (DSTO) where lasers were being developed for Australia’s Laser Airborne Depth Sounder (LADS). He returned to university to study for a PhD in Physics (laser spectroscopy), returned again to DSTO to investigate laser-material interactions and later worked some years on statistical image processing techniques. He completed the degree of Master of Mathematical Sciences (Signal & Information Processing), meanwhile learning details of sonar signal processing. In 1999 he moved to the DSTO Maritime Operations... (read more)
2008-01-01 01:00:00

Shallow Survey 2012

More than 200 hydrographic and marine charting experts and other scientists met during the International Shallow Survey Conference held from 20 to 24 February 2012 in Wellington, New Zealand. The conference was hosted by LINZ, NIWA and GNS Science. In addition to the conference’s key session on the common dataset, the event comprised five days of workshops, keynote speeches and expert presentations as well as a trade show. Plenty of networking took place at the Monday evening icebreaker, at the official conference dinner held at Te Wharewaka o Poneke, and also over coffee in Wellington’s many excellent cafés. After the... (read more)
2012-04-20 11:59:56

Shallow Hazards Survey Completed

Fugro GeoServices has successfully completed the fieldwork portion of a shallow hazards survey in Alaska’s Chukchi Sea for Shell Exploration and Production. Data processing is currently underway, with the first set of interpretation and reporting deliverables scheduled for month’s end. Additional follow-on work is expected to continue into the new year. Fugro accomplished the surveys over a period of two months. Acquisition involved specialized equipment customized for the arctic environment and to meet Alaska outer continental shelf permitting requirements, as published by the federal Minerals Management Service agency.     (read more)
2009-12-10 11:15:12

NAVTEK AS Order Deep and Shallow Water Multi-beams from Kongsberg Maritime

Horten based NAVTEK AS, recently placed an order for an EM 300 30 kHz 2x2 degree system and an EM 3002 300 kHz single system with SIS and Neptune. The production and delivery of the systems will be done on very short notice, displaying Kongsberg Maritime's flexibility. The Factory Acceptance Test will take place only 3 weeks after signing the contract and delivery is scheduled to take place the following week. The systems will be installed at the Astilleros Gondan shipyard in Spain. (read more)
2005-08-22 12:00:00
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