GPS

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AMSA to discontinue its Differential Global Positioning System service

AMSA informed that on 1 July 2020 it will discontinue its Differential Global Positioning System (DGPS) service. The increased accuracy of GPS and introduction of other global positioning constellations, such as GLONASS, GALILEO and Beidou, mean that AMSA’s DGPS service is no longer needed.

The threat of GPS cyber attacks to marine and offshore industries

Today, over 87% of merchant vessels are carrying GNSS receivers, usually feeding into an ECDIS for establishing position, speed and heading. If GNSS-based position information is unavailable, it leads to other systems such as AIS becoming unavailable.

GPS interference in Eastern,Central Med. Sea and Suez Canal

The US Maritime Administration alerted of GPS interference that has been reported from vessels operating in the Eastern and Central Mediterranean Sea, and Suez Canal resulting to lost GPS signals that seriously affect the vessel’s navigation and operations.

NOAA: What is Geodesy

According to NOAA, geodesy is the science of precisely measuring and understanding three fundamental properties of the Earth; Its geometric shape, its orientation in space, and its gravity field, while also measuring the changes of these properties on time.

US MARAD: Updated guidance for ships in Strait of Hormuz

An escalating tension in the Persian Gulf over the last months continues to pose serious threats to commercial vessels. Associated with these threats is a potential for miscalculation or misidentification that could lead to aggressive actions, the US MARAD warned. 

GPS tracker helps collect 40 tonnes of plastic in Pacific Ocean

Sea pollution is increasing rapidly as ghost nets and plastic are seen travelling through the world’s oceans. Marine debris is hazardous not only for the the people making a living by the oceans, but also for the marine life. To save the oceans a California-based cargo ship named ‘Kwai’ collected 40 tonnes of plastics from the Great Pacific Garbage Patch and docked in a Konolulu, Hawaii Harbour. 

European satellite-navigation system remains offline due to outage

The European satellite-navigation system, Galileo, remains offline as it suffered an outage on July 12, which was described as a technical incident regarding its ground infrastructure. Engineers are working to fix the problem, but as of now there is no update regarding when the service will resume.

14 US companies urge for action on GPS interference

On the occasion of the International Day of the Seafarer on 25 June, a total of 14 maritime organizations sent a formal letter to the US Coast Guard Commandant Karl Schultz, requesting the issue of ‘deliberate interference’ with America’s GPS to be resolved.  

GPS interference in Red Sea and Med. Sea

The United States Maritime Administration (MARAD) issued the US Maritime Advisory No. 2019-005 regarding Global Positioning System (GPS) interference in the Eastern Mediterranean Sea and Red Sea. Therefore, the Republic of the Marshall Islands Maritime Administrator urges all RMI-flagged vessels transiting the designated areas listed in the below Advisory to exercise caution.

NOAA: What is GPS

In the past and for centuries, sailors used the constellations, sun, and moon to navigate to distant shores. Today,  all that’s needed is a device called a GPS receiver. GPS stands for Global Positioning System, and it lets us know where we are and where we are going anywhere on Earth.

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