Polka – Residency
6th sighting in Chatham Strait
Polka @32124
Jul 1 – 25, 2024 · Chatham Strait
Chatham Strait · Jul 2024
114 m
Deepest dive
3:27
Longest dive
39
Dives
- Sightings
- 2
- Days between first and last sighting
- 24
- Deepest dive on record
- 114 m · this residency
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 1, 2024 | 125 m | 11.2°C | 114 m |
| Jul 25, 2024 | 32 m | 9.7°C | 28 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
114 m
Deepest dive
3:27
Longest dive
39
Dives
18 m
Avg dive depth
2
Sightings
24
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 (125 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 1, 2024
measured- Seafloor depth
- 125 m
- Sea-surface temperature
- 11.2°C
- Distance from shore
- —
Across the residency · 2 sightings
measured- Seafloor depth
- 32 m – 125 m
- Sea-surface temperature
- 9.7°C – 11.2°C
- Distance from shore
- 1.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.