Reef telemetry

Sensor drift: no drift detected — The clean-water reading is stationary; turbidity variation is episodic, which is what real runoff and resuspension look like. Screen, not proof — a lone buoy carries no clean reference sensor, so a genuine long-term turbidity change cannot be fully separated from instrument drift (SCO-20).

Latest recording 2026-09-12 23:30 UTC: 2,772 snaps (median 3,064 per recording). Levels are dBFS, relative until the hydrophone chain is calibrated. NDSI is the buoy's estimate from the same bands as the shore index; it follows the shore value but does not equal it.

Estimate — from the power budget's datasheet figures (2026-10-25 update, hydrophone 3 min a day), not a measurement; one cell lasts half as long. Going from 1 to 3 transmits a day costs 0.043 mAh a day, under half a percent of the draw, so the count mostly trades how fresh this page is, not battery life. The range 1–3 is pending the electrical lead's power sign-off. The team changes the count in the S.C.O.U.T. Console; the buoy reports it back in its next packet.