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.

Port operations, whether these are being performed on water or on land, are often not without risk. Pilots boarding a ship while sailing, navigating through narrow passages, collision avoidance with other smaller or larger vessels, discharging and moving cargo on land, walking between container handling equipment and trucks…

At sea, space technology is used to help save lives every day: managing traffic between ships, picking up migrants and refugees in distress or spotting oil spills. The European Space Agency is once again at the forefront developing new technologies and satellites: to keep us safe at sea and to monitor the environment. Space makes a difference here on Earth and certainly at sea where there is no infrastructure.
Recommendation by Marine-Pilots.com
AIS services are offered by, for example:

The British Tugowners Association (BTA) in collaboration with the UK Chamber of Shipping has launched its new Pilots’ Pocket Guide and Checklist.

Training video II on the correct behaviour in case of man overboard

From "Casual Navigation": In this video, we investigate the Pilot Ladder. It is a crucial piece of equipment, used for embarking and disembarking a harbor pilot at sea.(contains advertising)

The Federal Bureau of Maritime Casualty Investigation (BSU) hereby announces the publication of the Investigation Report No. 285/20 on 26 October 2022. The report deals with the contact of the multipurpose ship ELSE with a closed lockgate of the Kiel-Holtenau lock which occurred on 29 August 2020.