How GPS works? Trilateration explained

Of course, as a Nautical Specialist, I also deal with the international discussion on the advantages and disadvantages of satellite-based navigation, e-navigation and conventional terrestrial and astronomical navigation.

In my announced sequel, the second part of GPS, it is primarily about the technical and physical operational and functional limitations to which GPS is subject. These limitations, in part, have serious implications for the accuracy of GPS, and even go as far as limiting the functionality of GPS in its functions or even making it impossible. In doing so,

The vulnerability of GNSS in shore-based use is definitely different and to be regarded as much more risky than on the high seas.

SWATH and SWASH are interesting technologies that allow a vessel to sail much more calmly in high waves. A stable and calm position of the ship is especially important for pilot boarding.

Short demonstration highlighting key features of the VR Marine Pilot training simulation LWA Solutions have delivered for the Ports of Auckland.
Editors Note (4th July 2020):
This video shows the fantastic possibilities of virtual reality technology. Wonderful demo by Ports of Auckland. In respect for doing this amazing experiment. If somebody knows more about this or other interesting similar projects please leave a comment below and help us to complete information about virtual reality...

Using pictures and sketches, this video finally explains the difference between gross tonnage (GRT) and net tonnage (NRT); the ship spaces that are included/excluded in their calculation; and the importance of these terms to ship owners.
Contents of this video will benefit mariners preparing for exams (written and oral examinations).

Challenge between SWATH tender "DÖSE" and two 30m mono hull vessels in 2013.

The Arctic magnetic pole does not move anymore. It runs, faster and faster. In recent years, even faster than expected. Therefore, geo-researchers have now had an unscheduled change to their world model and adjust their calculations, so that navigation with compass and other navigation aids such as a Pilot Plug, used by pilots around the world, continue to work.

Australian technology provider Frontier Automation has released a new vessel tracking system that can be used as a docking aid tool by pilots. As for all Frontier Automation control systems, it uses 3D machine vision to automatically detect and track in real time shipping vessels within range of a berth by providing information on critical distances to mooring infrastructure, on vessel speed and angle, and on vessel movement directions and orientations.