◇ Magna Earth · Marine

Where the pods meet the ships.

The Orca Interaction Atlas — every logged Iberian orca/vessel interaction, the density-based danger corridor where they cluster, and the shallow-water route built to avoid both the pods and the deep-draft shipping lanes.

Interactions · danger corridor · safe corridor · sighting density
How it works

One coastline, three layers

Off the Iberian coast, a resident pod of orcas has taken to approaching sailing and motor vessels — sometimes brushing the rudder, sometimes stopping the boat dead. The Atlas maps the interactions themselves, where they concentrate, and the route built to miss them.

Logged interactions

Each encounter plotted and clustered — boat type, rudder damage, and the reported behaviour, drawn from an open Cruising Association sample cross-referenced with Portuguese Navy (AnavNet) reports.

Danger corridor

A density-based zone drawn directly from where interactions actually cluster — not a guess, a measurement of the record.

Safe corridor

The 20–30 metre isobath — a shallow-water line that threads between the pods offshore and the deep-draft shipping lanes.

Inside the Atlas

What's actually on the map

A live Leaflet chart of the Iberian coast with toggleable layers, a running interaction count, and a damage legend — built to be read at a glance and dug into on click.

Clustered · Toggleable
Interactions
Every logged encounter, clustered by proximity and colour-coded by damage — extensive, moderate, minor, none, or AnavNet-reported. Click a pin for boat, rudder, and behaviour.
Density-based
Danger corridor
A breathing red band drawn from where the interaction record actually concentrates — the corridor to expect a pod, not a fixed boundary.
20–30m isobath
Safe corridor
A shallow-water route traced along the coastal isobaths — close enough inshore to sit outside both the pods' usual range and the deep shipping lanes.
And beyond the corridors

Where the data comes from

Public marine-science data, laid out plainly — no editorializing, no invented precision.

Open sample, not the full record

GTOA's full interaction database isn't openly downloadable — the Atlas runs on the open Cruising Association sample plus GBIF sighting records and AnavNet (Portuguese Navy) reports. A lower bound, not the complete picture.

A sighting layer, separate from interactions

A toggleable heatmap of orca sighting density from GBIF sits alongside the interaction pins — where the pods have been seen, not just where they made contact.

Not for navigation

The corridors are interpretive, drawn from the open record for orientation — not a substitute for local notices to mariners or GTOA's own guidance.