Utilizing the US Nationwide Oceanic and Atmospheric Affiliation’s Marine Cadastre instrument, you possibly can obtain 16 years of detailed each day ship actions, in addition to “transit depend” maps generated from a yr’s value of knowledge exhibiting every ship’s accrued paths. The info is collected totally from ground-based stations alongside the US coasts.
I downloaded all of 2023’s transit depend maps and loaded them up in geographic info system software program known as QGIS to visualise this yr of marine visitors.
The maps are summary and electrical. With landmasses eliminated, the ship traces resemble long-exposure photographs of sparklers, high-energy particle collisions, or strands of fiber-optic wire.
DATA: NOAA; MAP: JON KEEGAN / BEAUTIFUL PUBLIC DATA
DATA: NOAA; MAP: JON KEEGAN / BEAUTIFUL PUBLIC DATA
DATA: NOAA; MAP: JON KEEGAN / BEAUTIFUL PUBLIC DATA
DATA: NOAA; MAP: JON KEEGAN / BEAUTIFUL PUBLIC DATA
Zooming in on these maps, you would possibly see unusual geometric patterns of excellent circles, or strains in a grid. A few of these are fishing grounds, others are scientific surveys mapping the seafloor, and others characterize boats going to and from offshore oil rigs, particularly off Louisiana’s gulf coast.
Hiding in plain sight
Having a worldwide, near-real-time system for monitoring the exact actions of all ships at sea appears like an excellent innovation—until you’re attempting to maintain your ships’ actions and cargoes secret.