Mathematician – Residency
2nd sighting in Au'au Channel
Mathematician @4593
Mar 21 – 22, 2023 · Au'au Channel
Au'au Channel · Mar 2023
29 m
Deepest dive
1:33
Longest dive
13
Dives
- Sightings
- 2
- Days between first and last sighting
- 1
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Mar 21, 2023 | 186 m | 25.0°C | 18 m |
| Mar 22, 2023 | 40 m | 25.5°C | 29 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
29 m
Deepest dive
1:33
Longest dive
13
Dives
12 m
Avg dive depth
2
Sightings
1
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 (40 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Mar 22, 2023
measured- Seafloor depth
- 40 m
- Sea-surface temperature
- 25.5°C
- Distance from shore
- 2.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 40 m – 186 m
- Sea-surface temperature
- 25.0°C – 25.5°C
- Distance from shore
- 2.0 km – 12.0 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.