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Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Monterey Bay

Polaris – Residency

81st sighting in Monterey Bay
Fluke of Polaris
Polaris Confirmed in the catalog @66169
Aug 18 – Oct 31, 2023 · Monterey Bay

Monterey Bay · Aug – Oct 2023

191 m
Deepest dive
4:34
Longest dive
174
Dives
Sightings
15
Days between first and last sighting
74

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 18, 202398 m17.4°C39 m
Aug 22, 202378 m17.3°C64 m
Aug 24, 2023126 m17.5°C34 m
Aug 29, 202373 m18.1°C58 m
Aug 30, 202386 m18.4°C30 m
Aug 31, 2023231 m18.2°C191 m
Sep 3, 202342 m17.2°C37 m
Sep 4, 2023515 m17.0°C120 m
Sep 17, 202382 m16.2°C60 m
Sep 18, 202368 m16.5°C48 m
Sep 18, 202365 m16.5°C51 m
Oct 25, 2023155 m15.6°C79 m
Oct 26, 202396 m15.5°C55 m
Oct 30, 202376 m14.9°C62 m
Oct 31, 2023186 m14.6°C68 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Aug 18, 2023 — seafloor 98 m (measured), deepest dive 39 m (modelled)Aug 18Aug 22, 2023 — seafloor 78 m (measured), deepest dive 64 m (modelled)Aug 24, 2023 — seafloor 126 m (measured), deepest dive 34 m (modelled)Aug 29, 2023 — seafloor 73 m (measured), deepest dive 58 m (modelled)Aug 29Aug 30, 2023 — seafloor 86 m (measured), deepest dive 30 m (modelled)Aug 31, 2023 — seafloor 231 m (measured), deepest dive 191 m (modelled)Sep 3, 2023 — seafloor 42 m (measured), deepest dive 37 m (modelled)Sep 3Sep 4, 2023 — seafloor 515 m (measured), deepest dive 120 m (modelled)Sep 17, 2023 — seafloor 82 m (measured), deepest dive 60 m (modelled)Sep 18, 2023 — seafloor 68 m (measured), deepest dive 48 m (modelled)Sep 18Sep 18, 2023 — seafloor 65 m (measured), deepest dive 51 m (modelled)Oct 25, 2023 — seafloor 155 m (measured), deepest dive 79 m (modelled)Oct 26, 2023 — seafloor 96 m (measured), deepest dive 55 m (modelled)Oct 26Oct 30, 2023 — seafloor 76 m (measured), deepest dive 62 m (modelled)Oct 31, 2023 — seafloor 186 m (measured), deepest dive 68 m (modelled)

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

191 m
Deepest dive
4:34
Longest dive
174
Dives
25 m
Avg dive depth
15
Sightings
74
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200191 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (231 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Aug 31, 2023

measured
Seafloor depth
231 m
Sea-surface temperature
18.2°C
Distance from shore
6.0 km

Across the residency · 15 sightings

measured
Seafloor depth
42 m – 515 m
Sea-surface temperature
14.6°C – 18.4°C
Distance from shore
2.0 km – 13.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 15 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.