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192 search results for: ais

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192 search results for: ais


Tankers Falsify AIS Tracking Positions to Hide Entry into Russian Black Sea Ports

Amid efforts to enforce an oil price cap and prevent the looting of agricultural products, four tankers were detected disguising their routes in the Black Sea

In late February, as the world marked the one-year anniversary of the war in Ukraine—the impetus for U.S. and NATO allies to impose new price caps on Russian crude and refined oil products—four tankers broadcast elaborate false tracks in the western Black Sea, our analysis finds. Their real locations were hundreds of miles away.


Russian Tanker Falsifies AIS Data, Hides Likely Activity Around Malta and Cyprus

A first-of-its kind discovery of deceptive ship location broadcasts by a Russian tanker underlines a growing risk of unregulated vessel activity

The maritime world is likely entering an unprecedented period of deceptive shipping practices by tanker operators seeking to avoid sanctions. The recent announcement of a price cap on Russian crude—and a new ban on Western companies insuring Russian cargoes—sets the stage for an increase in clandestine activities by ocean vessels. Not only does this intentional deception provide cover for possibly illegal activity: The misuse of the AIS collision avoidance system jeopardizes safety at sea by ratcheting up the risk of collisions, oil spills, and other serious accidents.


AIS Ship Tracking Data Shows False Vessel Tracks Circling Above Point Reyes, Near San Francisco

Analysis from SkyTruth and Global Fishing Watch shows ship tracks jumping thousands of miles from their true locations.

In December of 2019 SkyTruth reported on a number of locations on the Chinese coast (mostly oil terminals) where ship tracking positions from the automatic identification system (AIS) became scrambled as soon as ships approached within a few miles of a point on shore. Following the findings last year on the Chinese coast, analyst Bjorn Bergman began looking globally for any similar patterns in AIS tracking data around the world. While he hasn’t found the precise pattern observed at the Chinese oil terminals outside of China, he has found a somewhat different false AIS broadcast pattern which appears concentrated above Point Reyes northwest of San Francisco, California. Could this reflect an intentional disruption of the underlying global positioning system that AIS relies on, or is there some other explanation for this pattern?


Bilge Dumping? Busted Using Satellite Images and AIS Data

Remember that 92-mile-long bilge dump off Congo and Angola that caught our attention back in April? The bright spot at the left end of the slick is likely the vessel that caused it.  But the ASAR imagery left an important question unanswered: Who was responsible for this pollution? With the generous help of our new […]