Mathematician – Residency
18th sighting in Salish Sea
Mathematician @4593
Aug 5 – 16, 2024 · Salish Sea
Salish Sea · Aug 2024
64 m
Deepest dive
2:39
Longest dive
15
Dives
- Sightings
- 2
- Days between first and last sighting
- 10
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Aug 5, 2024 | 168 m | 19.8°C | 49 m |
| Aug 16, 2024 | 232 m | 19.0°C | 64 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
64 m
Deepest dive
2:39
Longest dive
15
Dives
30 m
Avg dive depth
2
Sightings
10
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 (232 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 16, 2024
measured- Seafloor depth
- 232 m
- Sea-surface temperature
- 19.0°C
- Distance from shore
- 2.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 168 m – 232 m
- Sea-surface temperature
- 19.0°C – 19.8°C
- Distance from shore
- 2.0 km – 5.0 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.