Experts are extremely concerned about the temperature of the Pacific Ocean, as the sea surface temperature this year was the warmest since satellite measurements began. This c...

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...

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...

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...

Tides and currents are giving hydrography an extra (some say challenging) aspect, which has to be accounted for. If you are measuring ‘absolute’ water depths, as do surveyors for n...

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...

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...

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...

Surveying in the near-shore or surf zone is, without doubt, a technical and operational challenge. And this remains true despite the fact that GNSS-positioning and the drastic redu...

I was recently approached by the parents of a young man who had just finished four years hydrographic study and this was the question they put to me: "Sir, our son graduated last y...

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...

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,...

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...

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...

Until recently, each survey organisation or hydrographic service had its own system for numbering surveys and the fair sheets, bottom samples and other records that comprised a sur...

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...

My first experience in the navy with data collecting for oceanography was taking part in a MILOC-survey (military oceanography), near the Azores in the 1960s. It took us 24 hours t...

Hosting a party on a ship’s maiden visit to Malta in 2002, I mentioned in my welcome the initiative of the Maltese ambassador to the United Nations, Dr Arvid Pardo. In a historical...

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...

"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...

Improvements in sensor sensitivity, reliability and detection capabilities, and improved modelling techniques have all contributed to increased capability enhancements and new appl...

There are several motivating factors behind the desire to increase the contribution of renewables to the total energy production mix. One is the wish to be less dependent on securi...

There are fewer large projects on the drawing board for the present or very near future than the surveying industry would wish. But try to see it positively, in line with the follo...

Developments in science and technology bring new chances and working methods to our industry; for example, scribbling tide-pole readings in a paper notebook, although still a good...

This issue’s theme is 'Underwater Imaging'. Underwater imaging has a broad aspect and includes optical and acoustic imaging as well as other types such as electrical and thermal im...