PerimeterViolation – Residency
7th sighting in Chatham Strait
PerimeterViolation @41843
Jul 20 – Sep 10, 2023 · Chatham Strait
Chatham Strait · Jul – Sep 2023
113 m
Deepest dive
4:39
Longest dive
42
Dives
- Sightings
- 4
- Days between first and last sighting
- 52
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 20, 2023 | 384 m | — | 91 m |
| Jul 24, 2023 | 79 m | — | 38 m |
| Aug 24, 2023 | 280 m | — | 113 m |
| Sep 10, 2023 | 96 m | — | 72 m |
Seafloor and sea temperature measured · ✳ dives modelled
Deepest dive against the seafloor, per sighting
Seafloor · measured Deepest dive · modelledDepth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.
Dives
113 m
Deepest dive
4:39
Longest dive
42
Dives
25 m
Avg dive depth
4
Sightings
52
Days first → last
Dive metrics are modelled within real depth limits — not measured
Get actual dive data with Risa Deep →Dive profile
modelledDepth shaped by the seafloor limit here (280 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 24, 2023
measured- Seafloor depth
- 280 m
- Sea-surface temperature
- —
- Distance from shore
- 6.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 79 m – 384 m
- Sea-surface temperature
- —
- Distance from shore
- 4.0 km – 7.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.