ECHO Program – Voluntary Ship Slowdown in Haro Strait & Boundary Pass
2024–2025 Haro Boundary slowdown zones (Port of Vancouver ECHO Program)
Model how much noise any vessel contributes to any marine habitat — anywhere on Earth, in near real time. AIS-driven source levels, range-dependent acoustic propagation, and hydrophone-validated results in one platform.
Globally deployable — validated in Haro Strait, Southern Resident Killer Whale habitat.
> Validation case: Haro Strait — Lime Kiln Hydrophone
ECHO Program – Voluntary Ship Slowdown in Haro Strait & Boundary Pass
2024–2025 Haro Boundary slowdown zones (Port of Vancouver ECHO Program)
Every 30 seconds, Clairwave runs a complete ship noise prediction loop — from AIS position to received level at the hydrophone.
Live positions, speed, type, and dimensions for every vessel in the monitoring area. Filtered to the acoustic water arc.
Wales-Heitmeyer spectral model estimates broadband source level per vessel from ship class, speed, length, and draft.
RAM parabolic equation solver with real GEBCO bathymetry computes range-dependent propagation loss per vessel bearing.
Continuous PSD from the Lime Kiln hydrophone provides ground-truth broadband SPL for model validation.
Per-tick delta (Δ dB) between modeled ship noise and measured SPL — the core validation metric, tracked continuously.
Interactive terrain, vessel markers, and volumetric propagation overlays — run in any browser, no install.
Hydrophones measure total noise. They can't tell you which vessel is responsible, how much noise it would make at a different speed, or what will happen when the next ship arrives.
AIS-linked source levels decompose the soundscape into individual vessel contributions — who, how much, and why.
Model noise impact before a vessel enters the corridor. Evaluate slowdown scenarios in seconds, not after the fact.
Every prediction is compared against live hydrophone measurements. The Δ dashboard below shows model accuracy in real time.
Haro Strait is one of the busiest shipping corridors in the Pacific Northwest — and the core foraging habitat of the Southern Resident Killer Whales, one of the world's most endangered marine mammal populations. Every vessel transiting to the Port of Vancouver passes through this acoustic bottleneck. Clairwave was built here because this is where real-time ship noise monitoring matters most.
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Built for academic institutions, research labs, marine consultants & port authorities, and government bodies — navies and defence research establishments.
Contact for a quoteLive AIS tracking, physics-based propagation, and hydrophone validation. No install, no wait.
Launch Interactive DemoCorrelated validation data between Clairwave's AIS-powered ship-noise model and Lime Kiln hydrophone measurements in Haro Strait.
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