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Anasuria AWS wave buoy daily means for Dec 2011

Daily means from the Anasuria AWS wave buoy for Dec 2011, including available wave height, period, direction, wind and sea temperature data.

Last observation shown

Data available:  to 

Monthly means for

Latest

Period Summary

Programmatically generated summary. Hog Says

646 wave-buoy observations covered 28 of 31 days (90%). Typical wave height was 10.2 ft (10th–90th percentile 5.9–20 ft), while mean reported wave period; measurement type unavailable was 6.6 seconds (10th–90th percentile 5–8 seconds). Typical wind was 22 mph (10th–90th percentile 10.3–38.1 mph) and mean water temperature was 9.6°C (10th–90th percentile 9.2–10.2°C). 3 of 3,160 checked values (0.1%) were excluded by quality control. Across 1 comparable year, mean wave height was above the same-month mean of 7.3 ft and mean wave period was above the same-month mean of 5.3 seconds.

Generated only from the observations and comparisons shown on this page.

Typical Wave Height

10.2ft
Mean: 11.6 ft
P10–P90: 5.9 — 20 ft
Recorded extremes

3.6 — 33.1 ft

Available for 644 of 646 hourly samples

Mean Wave Period

6.6secs
P10–P90: 5 — 8secs
Recorded extremes

4 — 10secs

Available for 645 of 646 hourly samples

Mean Water Temperature

9.6°C
P10–P90: 9.2 — 10.2°C
Recorded extremes

9 — 10.7°C

Available for 578 of 646 hourly samples

Typical Wind

WSW, 22mph
Mean: 23.2 mph
P10–P90: 10.3 — 38.1 mph
Recorded extremes

1.1 — 55.3 mph

Circular concentration: 66%

Available for 645 of 646 hourly samples

Compared With Previous Decembers

Historical baseline from 677 observations across 1 year.

Wave Height
11.6ft
4.3ft above mean
Historical mean 7.3ft
Wave Period
6.6s
1.3s above mean
Historical mean 5.3s
Water Temperature
9.6°C
Not enough comparable data

Chart showing grouped wave observations for Anasuria AWS. Use the table on this page for a text version of the same measurements. To open hourly observations, use a linked day name in the table.

About Anasuria AWS wave buoy

Anasuria AWS (WMO 62164) is an automatic weather station on privately operated offshore infrastructure in the central North Sea. It is not a free-floating wave buoy. The station contributes meteorological and, when fitted, sea-state observations from an area with extensive offshore energy activity.

Metrics are rows; days run left to right.
Anasuria AWS wave buoy daily means Dec 2011Last observation shown
Metric
Mean wave height (ft)159---15111724169917188611128956810121481618107
Mean observed period(s)7Reported7Reported---8Reported7Reported7Reported9Reported8Reported6Reported6Reported8Reported8Reported6Reported6Reported6Reported7Reported7Reported6Reported5Reported5Reported6Reported6Reported7Reported7Reported6Reported7Reported8Reported7Reported5Reported
Mean wave power(kW/m)-------------------------------
Mean wind directionWconcentration 57%Wconcentration 76%---Wconcentration 96%WNWconcentration 33%SWconcentration 84%WNWconcentration 99%Wconcentration 95%SWconcentration 93%SWconcentration 88%SSWconcentration 90%WSWconcentration 98%Wconcentration 97%Nconcentration 80%NWconcentration 94%NWconcentration 89%WSWconcentration 62%WNWconcentration 94%SWconcentration 58%WSWconcentration 89%Wconcentration 85%WSWconcentration 87%SWconcentration 95%SWconcentration 98%WSWconcentration 58%SWconcentration 85%WNWconcentration 90%WNWconcentration 46%SSWconcentration 86%
Mean wind speed (mph)2515---221538422919233532151322219221320212625281736311517
Mean water temperature(°C)10.710.6---10.310.210.210.110.09.89.89.89.89.89.79.79.59.59.49.39.49.49.39.39.39.39.29.19.19.1

Swipe sideways to see more days.

Wave metric colour key

Colours move through the scale as each number increases. They do not by themselves mean that conditions are good, safe or suitable for you.

Wave & swell height0–40+ ft
Wave & swell period0–22+ s
Wind speed0–75 mph

The displayed numbers remain the source of truth; colour is an additional visual cue.

Which wave period is shown?

The table shows the best period measurement supplied for each observation. It is not necessarily the energy period used to calculate wave power.

Tp
Peak period: the period at the strongest spectral peak.
Tavg
The provider's average wave period.
Tm02
A mean period calculated from the wave spectrum.
Tz
Mean zero-crossing period.
Reported
A legacy value whose period type was not recorded.
Mixed
A daily or monthly mean containing more than one period type.

Wave power needs a genuine energy period (Te). SurfHog does not substitute Tp, Tavg, Tm02 or Tz when Te is missing.

What does buoy wave power mean?

kW/m means kilowatts of wave power per metre of wave crest. It describes the rate at which the observed sea state carries energy past the buoy.

Unlike the shore-directed forecast value, buoy wave power is the total power at the observation point. It is not projected towards a particular beach and does not predict breaking wave height.

In deep water, wave power can be calculated with:

P is approximately 0.49 times significant wave height squared times wave energy period.

P is power in kW/m, Hs is significant wave height in metres, and Te is wave energy period in seconds.

  • Provider-reported power is used when available.
  • Otherwise, a value is calculated only when both significant height and a genuine energy period are available. The ≈ symbol marks calculated values.
  • A dash is shown instead of substituting peak, Tm02, zero-crossing or other period measurements.
  • Daily and monthly figures use the mean of hourly-normalized observation power values; they are not calculated from mean height and period.

Wave direction, spectrum, water depth and local bathymetry still matter. Wave power is best read alongside height, period and direction rather than as a standalone surf-quality score.

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