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Aerial view of shallow lagoons cutting through green land
halvard.marine2026
0-18.4 mg/l
Green bubbles in oil seen through a macro lens
Oxygen
Curve
0-231.2 psu
A twisted ribbon of iridescent glass
Salt
Gradient
0-30.9 kn
A glowing sphere resting in a dusk coloured dune field
Night
Drift

Three stations in the same lagoon, read every six hours since April. The full log is open to anyone who asks for it.

See the 2026 survey