Introduction
The Wind Energy department of TNO Energy Transition & Materials carries out a meteorological measurement program for the government (Ministry of Climate Policy and Green Growth) in the Dutch part of the North Sea. We provide developers and other interested parties with information about the meteorological conditions for future wind farms in the North Sea. We are currently carrying out measurements at five measurement locations (Lichteiland Goeree - LEG, Europlatform - EPL, K13A, L2-FA-1 and F2-A-Hanze). In addition, historical data sets are available from a number of measurement locations, such as Meteorological Measuring Mast IJmuiden (MM-IJ) and Meteorological Measuring Mast OWEZ (MM-OWEZ).
Measurement campaign LEG
Since February 2026 TNO is performing meteorological measurements on F2-A-Hanze with a LiDAR. All the data is stored in a database and is made publicly available on this website. A LiDAR system is mounted on the platform.
The LiDAR measures wind speeds and directions at 63, 91, 116, 141, 166, 191, 216, 241, 266 and 291m. The LIDAR signals provided are general signals and measurement height specific signals.
|
Abbreviation |
Signal name |
Units |
|---|---|---|
|
F2AH_batvoltage |
Battery Votlage |
V |
|
F2AH_tempcpu |
CPU temperature inside the LiDAR |
deg C |
|
F2AH_humpod |
Relative Humidity inside the LiDAR |
% |
|
F2AH_bearing |
LiDAR Bearing |
Deg |
|
F2AH_tilt |
LiDAR tilt angle |
Deg |
|
F2AH_pair |
Air Pressure at LiDAR position |
hPa |
|
F2AH_wsmet |
Wind speed measured by LiDAR meteo station |
m/s |
|
F2AH_wdmet |
Wind speed measured by LiDAR meteo station |
Deg |
|
F2AH_HXXX_npts |
Measuring points |
|
|
F2AH_HXXX_missed |
Missed points |
|
|
F2AH_HXXX_npackets |
Packets in fit |
|
|
F2AH_HXXX_Wd |
Wind direction |
Deg |
|
F2AH_HXXX_Wshor_av |
Horizontal wind speed average |
m/s |
|
F2AH_HXXX_Wshor_std |
Horizontal wind speed standard deviation |
m/s |
|
F2AH_HXXX_Wshor_min |
Horizontal wind speed minimum |
m/s |
|
F2AH_HXXX_Wshor_max |
Horizontal wind speed maximum |
m/s |
|
F2AH_WsVer_avg |
Vertical wind speed average |
m/s |
|
F2AH_HXXX_cs |
CS |
LiDAR installation and maintenance - ZX 300M
To perform wind speed measurements, a ZX 300M has been installed that can measure up to a height of 300 meters above sea level. The laser beam is safe for the eyes according to IEC EN 60825-1, January 2008.
Since February 2026 the LiDAR performs measurements at the platform. The LiDAR is regularly maintained and replaced with a newly calibrated LiDAR.
Data validation
During measurements failures can occur. This is why the measured data is checked for errors to prevent ‘pollution’ of the database. This happens in two steps:
- The measurement computer checks for failures such as
- No connection with a sensor
- No connection with the measurement system
- A value of a signal exceeds a minimum or maximum value
- The measured data is daily checked manually for deviations
This data is filtered out and marked as ‘invalid’. When requesting the data from the database the ‘invalid’ data is not provided, so the user can be confident working with valid data.
Accreditation
Measurements on platforms Lichteiland Goeree - LEG, Europlatform - EPL, K13A, L2-FA-1 and F2-A-Hanze are performed by TNO under accreditation 'L324 meteorological measurement'.
Reporting
Instrumentation reports
Validation- and/or Verification reports
Windconditions
General
Data
The data will be made available as soon as possible.
