New Challenges for Digital Chart Production

Advanced Technical Solutions Need to be Implemented
Hydrographic Offices (HOs) have realized that bathymetric data is not sufficiently represented in Electronic Navigational Charts (ENCs). A few aspects of this topic have already been touched upon in the presentation 'Innovative approach in automated contour generation' (Moggert-Kägeler, 2017) that was presented at Hydro 2017. This article focuses on the challenges of high-density bathymetry chart production and introduces a new approach to cope with it. In the past, ECDIS (Electronic Chart Display and Information System) users have repeatedly complained about the lack of bathymetric detail in ENCs. The resolution of depth information is too coarse to adequately display the extent... (read more)
2019-03-07 01:21:06

Hydrographic Offices Taking Measures Related to the Coronavirus Pandemic

Several hydrographic offices have announced that they will take measures related to the coronavirus pandemic. The French Hydrographic Office (SHOM) said that with effect from Wednesday 18 March, no updates – including Notices to Mariners, Standard Nautical Chart (SNC), New Editions and ENC updates – will be made to their products, meaning that ENC charts starting with the country identifier FR will not receive updates until further notice. Caution is advised when using these products for navigation. NAVAREA warnings will be used by France to issue the most critical navigational information, SHOM stated. Philippines Hydrographic Office The Philippines Hydrographic Office has announced... (read more)
2020-03-24 11:17:23

From Nautical Chart to Digital Marine Mapping

Digital marine mapping became possible with the arrival of the electronic chart. The authors, who pioneered the re-engineering of this data for use in GIS, question whether the requirement has been fully met or whether fundamental issues still exist. It has been over ten years since UK marine environmental and engineering consultancy, Metoc, started to re-engineer UK Hydrographic Office data to make it suitable for use in GIS. Mike Osborne and John Pepper, who pioneered this work and are now directors of marine data management and GIS specialist, OceanWise, consider how the requirement for digital marine mapping has changed over... (read more)
2017-08-24 03:46:51

There is No Turning Back the Tide

This month we are focussed on the water, seas and oceans. Offshore surveying, Hydrography and the various associated survey disciplines in this sector have generally benefitted greatly from technology in recent decades to the point it is almost unrecognizable from even just 30-40 years ago. The analogue single beam echo sounders developed after the wars (especially World War Two), were coupled with sonar systems that would sweep and scan the seabed. Advances in signalling technologies, transducer manufacturing and processing power all enabled the introduction of multibeam sonar systems into commercial and civil survey projects. The improvements continue to this day... (read more)
2019-03-06 05:44:22
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