4 days ago
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Posted On: October 30th 2026, 12:00 pm
Twice a day the tide flows into the Rade de Brest through one narrow strait, the Goulet, and twice a day it flows back out. This was a neap week: by October 19 the sea at Brest rose and fell just 1.7 meters, and the jet through the Goulet eased to well under half its strength before building again, while the whole Rade cooled.
These are the Rade's surface currents hour by hour from October 16 to 23, 2026, colored by water temperature, from the Iroise down the Aulne and up the Élorn.
Data: Ifremer MARC, MARS3D model (open license); coastline © OpenStreetMap contributors
#brest #radedebrest #bretagne #finistere #dataviz #map
These are the Rade's surface currents hour by hour from October 16 to 23, 2026, colored by water temperature, from the Iroise down the Aulne and up the Élorn.
Data: Ifremer MARC, MARS3D model (open license); coastline © OpenStreetMap contributors
#brest #radedebrest #bretagne #finistere #dataviz #map
Comments (36)
2 days agoquentinn_lb
On peut facilement s'imaginer le temps de séjour assez important d'une molécule d'eau dans certaines baies bretonnes, d'où la vulnérabilité de certains coins aux algues vertes avec une concentration des nutriments localement (en plus de la mutation des souches, ...)
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