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

Drogon – Residency

18th sighting in Iceland
Fluke of Drogon
Drogon Confirmed in the catalog @37706
Aug 14 – Sep 1, 2020 · Iceland

Iceland · Aug – Sep 2020

80 m
Deepest dive
4:03
Longest dive
30
Dives
Sightings
4
Days between first and last sighting
18

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Aug 14, 2020160 m10.0°C80 m
Aug 16, 2020188 m10.2°C70 m
Aug 25, 2020109 m9.8°C55 m
Sep 1, 2020109 m9.6°C20 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 14, 2020 — seafloor 160 m (measured), deepest dive 80 m (modelled)Aug 14Aug 16, 2020 — seafloor 188 m (measured), deepest dive 70 m (modelled)Aug 16Aug 25, 2020 — seafloor 109 m (measured), deepest dive 55 m (modelled)Aug 25Sep 1, 2020 — seafloor 109 m (measured), deepest dive 20 m (modelled)Sep 1

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

Dives

80 m
Deepest dive
4:03
Longest dive
30
Dives
27 m
Avg dive depth
4
Sightings
18
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010080 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (160 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.

Unlock with Risa Deep

Place

Where this happened · Aug 14, 2020

measured
Seafloor depth
160 m
Sea-surface temperature
10.0°C
Distance from shore
4.0 km

Across the residency · 4 sightings

measured
Seafloor depth
109 m – 188 m
Sea-surface temperature
9.6°C – 10.2°C
Distance from shore
2.0 km – 6.0 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 4 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).

Happywhale runs on donations: support Happywhale →

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