Riverbed Surveying

Hydromapping - High Resolution Shallow Water Mapping from an Airborne Platform
In order to meet the requirements of the European Water Framework Directive (EU-WFD), authorities face the problem of performing area-wide surveys of all kinds of inland waters repeatedly. Especially for mid-sized and small rivers, a traditional survey approach imposes almost insurmountable logistical efforts and costs. Employing the new airborne hydrographic laser scanner RIEGL VQ-820-G, potential large-scale surveying of a river system is exemplarily demonstrated on the river Loisach in southern Germany, carried out by the company AirborneHydroMapping (AHM) and the University of Innsbruck. By Martin Pfennigbauer, RIEGL, and Frank Steinbacher, University of Innsbruck, Austria. In co-operation with the Bavarian Water... (read more)
2012-03-08 04:33:36

Chinese Surveying

Japan has protested against alleged surveillance activities by a Chinese vessel near disputed islands. Japan says it spotted a Chinese ship early on Sunday that was apparently carrying out research in what Tokyo considers its waters in the East China Sea. It says the Chinese ship was surveying an area about 30 kilometres west of Uotsuri Island and left after verbal warnings from a Japanese patrol boat. Japan issued a protest to the Chinese embassy in Tokyo, which said it would check the details of the incident. (read more)
2007-02-06 11:12:24

Surveying the Venetian Lagoon

The world's best-known estuarine lagoon has been of tremendous historical importance in sheltering the city of Venice. It is an ever-changing environment with only 8% covered by land, 12% by open water and the remaining 80% by mud flats, tidal shallows and salt marshes. This geographical setting, hosting complex ecosystems, is influenced by tidal cycles entering through three sea inlets and freshwater and sediment supplied by river influx. The Venice Institute of Marine Science (ISMAR-CNR) is engaged in numerous projects regarding researching and monitoring the lagoon.     Monitoring changes to the environment is becoming ever-more important in view of... (read more)
2012-01-23 10:44:08

Software for Hydrographic Surveying

HYPACK, Inc
In 1981, after working with the U.S. Naval Oceanographic Office as a field hydrographer and completing a graduate business degree, Pat Sanders founded ’Coastal Oceanographics’. The purpose of the company was to provide hydrographic consulting for companies with large hydrographic survey contracts. As a part of his consulting practice, Sanders wrote Fortran-based programs to manually enter raw hydrographic data to produce smooth sheets. His first ‘portable’ computer was a 40 pound, Columbia Data Systems machine with 640 kilobytes of RAM, a 10 megabyte hard drive, and a yellow monochrome monitor. By 1987, he and a few colleagues had developed an... (read more)
2011-03-16 11:31:42 Lourdes Evans HYPACK, Inc.

Surveying for Offshore Wind

Developing the Third Market
Many giants are drilling for oil and gas: the gold of the sea. Since the beginning of the new millennium, however, a new kind of energy potential of the sea has been discovered: wind energy. The fastest way to create substantial amounts of this green energy is to build offshore wind farms. The seas have space enough, the wind yield is higher than on shore and the visual impact, which is so often a difficult hurdle to overcome on shore, is not an issue at sea. Wind energy is characterised by renewability and sustainability, both of which are important issues, as we... (read more)
2009-09-02 12:00:00 Mattijs de Lange, Albert van der Hem

Coastal Surveying Capabilities

Tenix Lads Corporation
Tenix LADS Corporation (TLC) is a private company based in Adelaide (Australia) with offices in Cairns (Australia), Biloxi (USA) and Dubai (United Arab Emirates), and specialises in contract airborne LiDAR bathymetric services. TLC operates the latest generation laser airborne depth sounder (LADS) LiDAR system, a fast and efficient tool for bathymetric survey in shallow coastal waters. Laser airborne depth sounder (LADS) technology has a development history going back to the 1970s with the needs of the Royal Australian Navy (RAN) driving the development of a system to chart the vast tracts of the Australian marine environment. Originally set up by... (read more)
2009-03-27 12:00:00 Robert Caprile

Surveying the River Dee

The challenges of a mission (im)possible
In April 2004 an unusual vessel, the Afon Dyfwydwy made its first transit down the River Dee carrying the wings for the new Airbus A380. This was the culmination of many years of work for a number of companies, including Pelorus Surveys, and a proud moment for all involved. The Airbus factory at Broughton produces the wings for the Airbus range of aircraft and, to date, these have all been transported to the assembly facility in Toulouse, France using a modified Airbus flying from Broughton. However, each of the wings for the A380 is 48 metres long, 14 metres wide... (read more)
2008-01-01 01:00:00 Mike Wilson, Pelorus Surveys, UK

Opportunistic Multibeam Surveying

Deep-sea Research Expeditions Expand Multibeam Bathymetric Map of Seafloor
Currently only ten to fifteen percent of the ocean floor has been mapped at resolutions of 100-metre pixel size or better and the vast majority of this mapped area is within territorial waters. One way to significantly increase seafloor coverage is to outsource data collection to non-hydrographic vessels or ships of opportunity. However, data currently being collected by these vessels are largely unmanaged, leading to possible redundant coverage and/or inconsistent quality. It is a good idea that the scientific and hydrographic communities make effective use of ships of opportunity in order to optimise data collection in the immense areas in... (read more)
2015-08-26 11:54:30 Shannon Hoy, UK, Dr. Laura F. Robinson, UK/USA, and Dr. Veerle A.I. Huvenne

Surveying the Scheldt

The Flemish Hydrography is responsible for surveying the river Scheldt on Flemish territory up to the lock of Wintam. On the Dutch Western Scheldt Flemish Hydrography surveys only to check the dredged depths in the fairway. On the Flemish Sea Scheldt overall surveys are done for regular national and international charting purposes, besides surveys for very specific projects, such as the maintenance of dredging works. National and international paper charts and digital products (for example ENC’s) are produced for the common user but also for the dedicated users as pilots, engineers, port authorities, shipping companies and research institutes. The river... (read more)
2008-01-01 01:00:00 ing. François De Cock, Flemish Hydrography, Belgium

Surveying in the Extremes

Western Ross Sea, Antarctica
Last month the National Institute of Water & Atmospheric Research's (NIWA) deepwater 70m research vessel <i>Tangaroa</i> returned from a voyage to Antarctic waters. It had here continued hydrographic survey work begun in 2001 for New Zealand's national hydrographic authority, Land Information New Zealand (LINZ). It had also completed a biodiversity study of the north-western Ross Sea and around the Balleny Islands (from a depth of about 50m down to about 700m) for the Ministry of Fisheries. NIWA is New Zealand's provider of environmental research and consultancy services in coast, oceans, freshwater, fisheries, atmosphere and climate. In recent years it has... (read more)
2008-01-01 01:00:00 Neville Ching and John Mitchell, NIWA, Wellington, New Zealand
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