The world's first 'global ship footprint map” using AI to identify satellite images is completed

It was reported on January 4 that researcher David Kroodsma teamed up with National Geographic and Bloomberg Philanthropies to successfully build a global ship footprint map using satellite mapping data and AI technology. This map can accurately record various human activities in the ocean. The result is hailed as the world's first global ship footprint map.

In order to help players who have not yet passed the level, let us learn about the specific methods of solving the puzzle.

It is understood that the industry currently mainly uses VMS (Vessel Monitoring System, fishing vessel monitoring system) and AIS (Automatic Identification System, automatic identification system) to monitor the movements of global ships. However, these systems have limitations, such as equipment loading base and weather conditions, which make it difficult for them to accurately reflect global ship movements.

Researcher David Kroodsma used AI image recognition to train three AI models for detecting satellite images. They used global satellite data from 2017 to 2021 to build a relatively comprehensive map of ship footprints at sea.

This site learned from the paper that this "Global Ship Footprint Map" shows that there are an average of 63,300 ships sailing at the same time around the world, but among them, "nearly 75% of fishing boats and nearly 25% of "Various ships" actually do not appear in the VMS and AIS ship detection systems, which shows that traditional ship identification systems are actually unable to accurately track global ship movements.

Additionally, researchers used AI to take stock of global offshore energy infrastructure, including the world’s largest concentration of offshore oil infrastructure In the North American Gulf of Mexico, the United States owns nearly 2,200 of them, accounting for 1/4 of the world's offshore oil infrastructure.

In terms of offshore wind power, researchers mentioned that the number of wind turbine generators in China increased by 900% from 2017 to 2022, the fastest growth rate in the world, with an average of 950 new units built every year, the number of wind turbines in the UK and Germany increased by only 49% and 28% respectively during the same period.

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