How does GPS work?

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.

London Pilots (PLA) have issued an excellent quick reference guide for Pilot Transfer arrangements, which can be used for pilots as well as ship’s crews. Please take not of this document and if you can, try to incorporate it into your procedures.

Maritime Education

Electronic warfare in the Baltic Sea is escalating rapidly, with GPS and AIS disruptions posing growing risks to maritime navigation. Russia’s hybrid strategy is targeting both safety and stability in one of Europe’s most critical shipping regions. Pilots and crews now face a new reality: navigating under threat.

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:

Professor Patrick Hudson discusses safety culture and leadership.

Swedish Radio News reports about major delays for shipping on Sweden's inland lakes and waterways, such as Vänern, Mälaren and Göta Älv.

Coronavirus may be hampering global trade but it hasn't broken the supply chain at the Port of Oakland. The latest evidence: the largest ship ever to call in Oakland arrives this week. The container vessel MSC Anna is scheduled to berth at the Port April 16.

The ship will tie up at Oakland International Container Terminal on the Oakland Estuary. The Port said that the 1,312-foot-long vessel is on special assignment from Geneva-based shipping line MSC. It’s collecting a backlog of empty containers in Southern California before arriving in Oakland. It’s scheduled to spend 24 hours here discharging import containers and loading exports.