Troll-B
Norway
Last wave reading:
Now at the buoy
Significant wave height at the buoy
12.3 ft
3.7 m
- Dominant period
- 9.1 s
- Direction
- no direction
This station does not send a swell and wind-wave split, so the numbers are for the whole sea.
Short-period swell: 12.3 ft at 9.1 s. Holding steady over the last 6 hours.
Significant wave height is the average of the biggest third of waves at the buoy. It is not surf height at a beach.
Trend at the buoy
Height at the buoy
- Total (significant height)
Period
- Dominant period
Hourly means of the buoy's readings. Arrows point the way the waves travel.
Model vs the buoy
- Buoy, hourly
- Model, past days
- Model forecast
Over the last 2 days, the model tracked the buoy within 10%.
| Day | Height | Peak period | From |
|---|---|---|---|
| Fri, Nov 13 | 11.6 ft | 9.2 s | NNW |
| Sat, Nov 14 | 14.8 ft | 9.5 s | WSW |
| Sun, Nov 15 | 18.0 ft | 13 s | W |
| Mon, Nov 16 | 13.4 ft | 12 s | WNW |
| Tue, Nov 17 | 14.3 ft | 10 s | NNW |
| Wed, Nov 18 | 17.1 ft | 13 s | N |
| Thu, Nov 19 | 15.6 ft | 13 s | N |
| Fri, Nov 20 | 7.4 ft | 11 s | N |
ECMWF WAM wave model via Open-Meteo, nearest model cell (60.750°N, 3.500°E). Both lines are significant wave height at sea, the same measure the buoy reports. Model output, not a Quiver beach forecast.
Nearby buoys
- Troll-A12.3 ft · 9.8 sLive · 19 km
- Oseberg-A13.3 ft · 11 sLive · 48 km
- Gullfaks-C11.1 ft · 9.1 sLive · 82 km
- Visundfeltet13.6 ft · 8.8 sLive · 87 km
- Snorre-A12.8 ft · 18 sLive · 105 km
- Snorre-B10.4 ft · 8.4 sLive · 109 km
Other readings
- Air temperature
- 44°F (6.7°C)
Reported Nov 13, 7:10 AM GMT+1.
How to read this buoy
Biggest hourly reading in that record: 16.5 ft at 10 s on Nov 12.
- Operator
- Equinor ASA
- Program
- Copernicus Marine In Situ
- Position
- 60.773°N, 3.501°E
- Type
- Offshore platform
- Local time zone
- Europe/Oslo
- Swell split
- No, whole-sea numbers only
Source: E.U. Copernicus Marine Service Information; https://doi.org/10.48670/moi-00036. Data from Equinor ASA. Licence: Copernicus Marine Service licence. Changes: Quiver converts the units (feet, knots, °F) and shows a subset of the published fields.
Not for navigation. Readings can be late, missing or wrong; check official marine forecasts before going to sea.
Buoy terms
- Significant height
- The average of the biggest third of waves the buoy measured. Sets in the surf zone can be bigger or smaller.
- Dominant period
- Seconds between the waves carrying the most energy. Longer period means more power and more bend around points.
- Swell vs wind waves
- Swell was made by distant wind; wind waves were made nearby. The buoy splits its spectrum at a cutoff period to report each.
- Direction
- Where waves come from, in degrees true. 270° is from the west.
