The US space agency NASA has successfully pushed the asteroid Dimorphos out of its original orbit in the universe, according to a recent announcement. The space rock was hit 11 mil...

In 1972, The Limits to Growth saw the light of the day, a report published by the Club of Rome. The message: to keep the Earth liveable, we must control economic growth. To think t...

While online data acquisition is of course of the utmost importance in hydrography, technological developments mean that modern surveyors also need to know about data science, mach...

We had prepared an extra thick edition of Hydro International for you, full of feature articles, columns, an interview and news from and a preview of Oceanology International 2020....

Satellite positioning has solved many positioning problems/aspects in our profession, and developments resulting in, for example, higher accuracy are not at an end yet: we look for...

The theme of this issue is ‘Monitoring Networks in Hydrography’. There are at least two meanings of the word ‘network’ in our profession. One means a network of sensors monitoring...

On behalf of the entire Hydro international team, may I wish you a healthy and prosperous New Year. And to those readers who celebrate the start of a new year on a date other than...

Warning: If you submit an article [to HI] you run the risk having an editor visit you specifically interested in the subject of your article! Upon hearing that the author of one re...

On behalf of the entire Hydro international team, may I wish you a healthy and prosperous New Year 2004! And to those readers who celebrate the start of a new year on a date other...

The theme of this issue is ‘Legal Aspects’ and contains many different views and insights into this interesting topic, from boundary determination to liability on products. The kno...

This issue’s theme is ‘Platforms in Hydrography’ leaving it unspecified as to whether it comprises ships, boats, AUVs, aircraft or even space vehicles. The gamut is so wide that on...

Hydrography is to many in our profession an unfamiliar word. When in my early days explaining what my job comprised I used to extrapolate it from ‘hydro’ and ‘graphy’, the last com...

Ports and harbours vary in size, use and importance; for example, from relatively small local fishing ports to the really large international ports of major importance to internati...

Inspection survey has a wide range of application, from preventive inspection to retrospective investigation of why or what happened. During the chain of events preceding an accide...

This issue is an OI-special; i.e. it pays special attention to Oceanology International Americas. The Oceanology International exhibition series are well known and well visited. Th...

Hydrographic surveyors collect data for various purposes, e.g. for producing nautical charts. Most data are properly archived for future reference, while other data are just repres...

This is an OI-special issue, in that it pays special attention to the Oceanology International London 2004 conference and exhibition. This latest in a well-known and well-visited s...

A whale, later identified as a northern bottle-nosed, was reported swimming in the river Thames in central London at the end of January, and was thereafter watched by crowds lining...

As we all know, hydrography means different things to different people, even amongst our readership. For example, physical oceanographers see it as measuring and describing the phy...

If things go as planned, on 28 December 2005 the first satellite of the European Satellite Navigation System ‘Galileo’ will be launched (note: you have to be quite famous when they...

Under development since the 1980s, the completely revised chapter V (safety of navigation) of the Annex to the International Convention for the Safety Of Life At Sea (SOLAS) came i...

Almost a year ago (June 2005), Google Earth was launched and drew a lot of attention (‘fantastic’, ‘exciting’) both from the GI-specialists as from the general public. Google Earth...

Until recently surveyors had far more accurate positioning equipment at their disposal than did general shipping. To name a few examples of the then modern electronic equipment: De...

Dredging in navigational channels, ports and harbours is intended to help the mariner navigate safely, with enough under-keel clearance. However, charting is not always uniform. To...

On behalf of the entire Hydro international team, may I wish you a healthy and prosperous New Year 2003. And to those readers who celebrate the start of a new year at another time,...

For years there has been a growing concern - at least in Western Europe and the United States - about the waning interest shown by their youth in technical studies - particularly a...

"Piing…….Zzzzz, Piing …... Ying, Piing …YiiinNG"… this was the sort of audio that made up my first experience of object detection back in the sixties, when we were survey...

The forces of nature are familiar enough to us field surveyors, but only when they occur in the extreme do they come to the attention of the news media and bring home to everyone t...

At the mention of low-budget hydrography, your first thoughts are likely to be of examples of using cheaper equipment or creative and simple methods such as marked coconuts (which...