Hourly Wind Speed Calibration
Calibrate an hourly wind-speed series to a trusted long-term mean reference
Installed
Both mean wind speeds below must refer to this same height.
Source / hourly series
Used to derive K. For GWA, use an ERA5 period matching the GWA reference period (2008–2017).
This is the newer/longer hourly series that will continue to hub-height and turbine calculations.
Used only when Manual mean only is selected above. If a stored ERA5 Job is selected, its calculated mean is used automatically and this field is disabled.
Reference / selected trusted source
Current version: this selection records the reference provenance. Wind Prospecting / GWA values are still entered manually below because HybridAEP does not yet fetch a numeric reference value from those services.
This is the target mean used to scale the hourly series. Example: ERA5 5.861 → reference 6.800 gives K≈1.160, so every hourly U/V component and wind speed is increased by about 16.0%.
Calculation status
Job #7 done
100%

Completed

Result
Comparison height
100.0 m
Bias factor K
1.00000
Wind-speed adjustment
+0.00%
Corrected mean
5.861 m/s
Calibration ERA5 job
#6
Application ERA5 job
#6
Calibration ERA5 mean
5.861 m/s
Application ERA5 mean
5.861 m/s
Calibrated hours
175320
Reusable calibrated dataset
Zhytomyr_Vysoke_WPP2__Hourly_Wind_Speed_Calibration__job000007__hourly_calibrated.csv.gz
K = mean_WS_reference / mean_WS_ERA5_calibration_period; WS_corrected_application(t) = K × WS_ERA5_application(t)
Download Excel — Zhytomyr_Vysoke_WPP2__Hourly_Wind_Speed_Calibration__job000007.xlsx Download CSV.gz
Excel export

Every completed calculation exports an XLSX workbook whose first worksheet is Cover. The Cover is written in English and documents purpose, inputs, method, outputs, limitations and source/documentation links.

Calculation logic / How this works

Derive a wind-speed bias factor on a reference-compatible period, then apply that same factor to the newer/longer ERA5 hourly series.

  1. Select a calibration-period ERA5 dataset and a trusted reference mean wind speed at the same height.
  2. Calculate K = reference mean / ERA5 mean over the calibration period.
  3. Select the application ERA5 dataset, normally the newer 20-year series.
  4. Multiply every hourly U and V wind component by K, preserving direction, chronology and interannual variability.
  5. Save the complete calibrated hourly series as a reusable CSV.gz for long-term and turbine calculations.
For an old GWA/Wind Prospecting reference, derive K on the overlapping/reference-compatible period rather than forcing the entire newer 20-year record to the old mean.