Visited for You

  Ocean Business   From 31 March to 2 April, Ocean Business and Ocean Careers took centre stage at the National Oceanography Centre in Southampton (UK), followed by Offshore Survey from 1 April.   However, on 30 March there was already much ongoing activity; stands were set up, delegates arrived. Hydro international was invited to join RESON, before the opening of the show, to see the RESON sonars in action. Surveying the harbour of Southampton on board of Southampton's Port Management Protector, a few remarkable features were discovered that even the regular harbour surveyors had not discovered before! In a... (read more)
2009-05-12 12:00:00

Acoustic Seabed Classification

Integration into hydrographic survey programmes
Acoustic seabed classification is rapidly gaining acceptance as a useful tool amongst the world's ocean community. Commercial classification products can measure acoustic diversity in the surficial seafloor zone and produce thematic maps of the resulting acoustic classes. Hydrographic services throughout the world routinely conduct bathymetric surveys using single beam sounders and multibeam sonar. These operations are ideal candidates to serve as 'surveys of opportunity' for acquisition of acoustic classification information. The hydrographic office itself gains significantly better seafloor information for charting purposes, with the added benefit that the ocean community outside hydrography gains a new capability to manage the delicate... (read more)
2008-01-01 01:00:00

Offshore Windfarm Survey on Gunfleet Sands

In recent years an expansion in the telecommunications cable industry led to an increase in the market for cable route landfall surveys incorporating geophysical surveys at sea and topographic surveys of the landing site. In the last two years, however, the economic conditions in the telecommunications industry have been such that there has been a significant decline in the number of surveys being commissioned. Therefore, it was with great interest that the coastal survey industry in the United Kingdom followed the development of the offshore windfarm market. This was given a considerable boost by the announcement of significant UK government... (read more)
2008-01-01 01:00:00

Hong Kong Harbour

Surveying for port facilities and marine structures
The products produced by advanced multi-beam bathymetry, Universal Reference Station DGPS Correction Technology, digital photogrammetry, 3D visualisation and fly-through videotography are definitely not just pretty pictures or animations but extremely useful for end-users: the designer, engineer, planner and port administrator. Hong Kong (HK) was founded as a port for China some 160 years ago and has flourished as an ‘entreport’ since then. Substantial development of HK Harbour is one indispensable milestone in maintaining the position of HK as the main gateway to China and premier business areas of Asia. Development and reclamation works for HK Harbour can be traced back... (read more)
2008-01-01 01:00:00

The Making of RV 'Kronprins Haakon'

New Norwegian Ice-breaking Research Vessel
Norway is a maritime country with a very long coastline, plus it is very much a polar nation with 80% of its sea territory and 45% of its land mass north of the Arctic circle. It is the only country with territorial claims both in the Arctic and the Antarctic. In spite of this, Norway has not had a purpose-built polar research vessel since Roald Amundsen’s 'Maud' (1917), having instead relied on converted commercial vessels for such purposes. That has all changed, however, now that 'Kronprins Haakon' has come into service. This article provides insight into the making of this new multi-purpose research vessel.... (read more)
2018-04-17 10:51:23

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

Advances in High-speed Underwater Remote Vehicles for Subsea Pipeline Inspection

The Benefits and Challenges of the Technological Revolution in the Pipeline Survey Industry
The pipeline survey industry has undergone a technological revolution in the past couple of years, and the consequential benefits and challenges are only just beginning to be fully realized. The cost efficiency of subsea operations has been one of the key focus areas of the offshore energy industry in recent years. This focus, combined with increased growth in the amount of subsea infrastructure now in-situ on the seafloor, has seen a rising need for innovative approaches to subsea asset inspection. These solutions need to be cost-efficient, maintain data quality, and be able to provide a platform that supports future technologies.... (read more)
2019-04-02 10:25:26

What Are the New Global Initiatives for Mapping the World’s Entire Ocean Floor?

Video Included
Three new global initiatives for mapping the world’s entire ocean floor have been announced in London at a special conference organised by The Nippon Foundation-GEBCO Seabed 2030 Project, the international collaborative project to produce a complete, freely available map of the seafloor by the year 2030. They will be overseen by the new Seabed 2030 Director, experienced UK hydrographer and former naval officer Jamie McMichael-Phillips, whose appointment was also announced at the conference. The conference titled 'From Vision to Action', took place at the Royal Society in London on Tuesday 22 October, was convened to mark the progress made in the... (read more)
2019-10-24 09:30:16

Top 10 Most Read Articles in Hydro International 2016

We are revealing Hydro International’s ten most read articles in 2016! We did not tweak anything: this is what it is! So this list gives you an indication on what is hot in the hydrographics industry. Underwater communications, positioning and technical backgrounds of sensor technology appear to be the key topics in our field as of 2016. Let’s see what next year will bring! For now: enjoy looking back at the trends and developments of the past year, and get a good insight into the state of today's surveying profession. Technology in Focus: Underwater Electromagnetic Propagation Underwater wireless communications links... (read more)
2016-12-28 10:44:53

The Dutch Way of Measuring Depths

by an Old Hydrographer
Once upon a time there was no satnav, multibeam sonar or a computer to handle a survey system. Hydrographic surveying was done ‘by hand’ with instruments long forgotten, instruments which boasted accuracy which would nowadays make your hair stand on end. Which instruments? There is no general answer to this question, because the Hydrographic Services of different countries had their own specific ways and means. There follows an example of what was used by the Dutch around 1955 in the former Netherlands New Guinea. When beginning a triangulation supported by a baseline, the position of one of the ends of... (read more)
2008-01-01 01:00:00
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