Arctic & Maritime Domain Awareness

See the sea — surface to seabed.

OAK Arctic turns the EW SUITE's acoustic, multi-INT fusion and geodesy libraries into the sea-picture tools a real maritime watch needs — an AIS-style vessel COP over a polar basemap, dark-vessel & anomaly triage, CPA / TCPA encounter screening, multi-INT maritime fusion, and an ASW sonar-barrier planner that sizes a sonobuoy field across a strait against a quiet submarine.

Request a demo The maritime layer

UNCLASSIFIED · representational // no real AIS feed, no operational vessel registry

The maritime operational layer

First-principles acoustics under an operator picture

OAK Arctic sits on the suite's shared physics — sonar_model acoustics, fusion_model multi-INT correlation and world_map geodesy — and adds the tools a watch floor works from.

AIS-style vessel picture

Merchants, tankers, fishing, naval and a submerged contact — MMSI, course/speed and an AIS on/off flag, dead-reckoned forward over the trans-Arctic lane.

CPA / TCPA screening

Closest-approach distance and time between vessels; encounter screening flags shadowing, rendezvous and collision geometry.

Dark-vessel & anomaly triage

A contact held by radar / EO but squawking no AIS is DARK; plus off-lane, loitering and subsurface flags with a CLEAR / WATCH / ALERT triage.

ASW sonar barrier

Lay a line of passive sensors across a chokepoint and compute the probability a transiting submarine is detected — reusing the suite sonar equation and transmission loss.

Multi-INT maritime fusion

Correlate AIS + radar + ELINT + EO/IR reports into fused vessel tracks, flagging tracks that sensors hold but AIS does not.

Arctic chokepoints

Davis, Fram, Bering and GIUK reference gaps — the geography a northern-approaches watch is built around.

Validated on real data — not just synthetic

Encounter screening proven on real vessel traffic

OAK Arctic runs on a representational Arctic picture, but its encounter-screening geometry is validated on real AIS vessel traffic — the credibility step from demonstrator toward relevant-environment validation.

Real AIS, real encounters

On real NOAA vessel traffic — 7,679 vessels, 1,153 genuine close encounters — the same CPA/TCPA the COP uses to flag shadowing and rendezvous is checked against what actually happened.

Sub-kilometre prediction

From a single AIS snapshot ~4 minutes ahead, the closest approach is predicted to a median 0.52 km (80% within 2 km; time-to-approach within ~3 min) — validating the geometry on real vessel motion.

Honest residual

The remaining error is the true signature of real vessels manoeuvring against a constant-course assumption — smallest at tactical horizons, exactly where an encounter alert matters.

Maritime DA Operations Console

The lane, the dark vessels and the barrier — one screen

Arctic vessel COP on a true polar-stereographic chart — real coastlines, relief and ocean bathymetry (offline Natural Earth + ETOPO), with the Arctic-approaches lane and chokepoints
Dark-vessel & anomaly triage: AIS-off + sensor-held, off-lane, loitering, subsurface
CPA / TCPA encounter screening for shadowing and rendezvous geometry
ASW sonar-barrier planner — sonobuoy field sized against a quiet submarine, coverage improving with density
Multi-INT fusion correlates AIS, radar, ELINT and EO/IR into one vessel track list
Real-AIS replay — load a real AIS capture and step or play through it frame by frame; the COP, CPA screening and anomaly triage all run on real vessel traffic, not just the notional picture

OAK Arctic — Maritime DA Console: vessel COP over the polar basemap

Built on the core

Sovereign, unclassified, representational

OAK Arctic is first-principles physics on a notional traffic picture — no real AIS feed and no operational vessel registry. It reuses the EW SUITE's sonar, fusion and geodesy libraries, carved into its own product tree.

Sovereign Canadian IP First-principles acousticsDark-vessel triage CPA / TCPAASW barrier planner Multi-INT fusionSingle offline installer