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Why are my wind data significantly lower than those announced by other weather data providers?
Why are my wind data significantly lower than those announced by other weather data providers?

The data from my Windcrop anemometer is lower than that of other weather data providers such as Met office

Updated over a year ago

Forecasts and data recorded by most public weather data providers (such as Met Office) are measured at a height of 10 meters.
➡️ Met Office datasets

⚠️ We invite you to inquire about the data collection conditions of the platform you are comparing your Windcrop data with.

If you have followed our installation recommendations to be as close as possible to what is happening in your fields, your Windcrop station is located at a height of 2 meters.


Wind Speed Conversion

Using a wind data converter

You can use a converter to check the equivalence between the data collected at more than 2 meters and that of your Windcrop.

To do this, you will need to:

  1. Convert the speed from km/h to m/s.

2. Use a converter that takes into account the data collection height.

Enter the following parameters:

Height ​(your anemometer's height)

2

Wind speed

Speed recorded by your anemometer

Roughness z0

Refer to the table (bottom of the page)

You will get a table with results at different heights (starting from 10m).


Example

For a wind gust measured at 50 km/h at two meters high:

km/h

m/s

10m high

76.9

21.37

2m high

50

13.9


Still having questions?

If you still have questions regarding your installation, we are here to help you.


Sources


Met Office; Hollis, D.; McCarthy, M.; Kendon, M.; Legg, T.; Simpson, I. (2018): HadUK-Grid gridded and regional average climate observations for the UK. Centre for Environmental Data Analysis.



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