How to calculate the hourly wind speed: Difference between revisions
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[[File:Tutorial_hourly_wind_speed_(Heat_Overlay).png]] | [[File:Tutorial_hourly_wind_speed_(Heat_Overlay).png]] | ||
{| class="wikitable" | |||
! Column | |||
! Name | |||
! Unit | |||
! Dutch Description | |||
|- | |||
|2/B | |||
|YYYYMMDD | |||
|Date | |||
|''datum (YYYY=jaar,MM=maand,DD=dag)'' | |||
|- | |||
|3/C | |||
|HH | |||
|Hour | |||
|''tijd (HH=uur, UT.12 UT=13 MET, 14 MEZT. Uurvak 05 loopt van 04.00 UT tot 5.00 UT'' | |||
|- | |||
|4/D | |||
|DD | |||
|Degrees | |||
|''Windrichting (in graden) gemiddeld over de laatste 10 minuten van het afgelopen uur (360=noord, 90=oost, 180=zuid, 270=west, 0=windstil 990=veranderlijk. Zie [http://www.knmi.nl/kennis-en-datacentrum/achtergrond/klimatologische-brochures-en-boeken]'' | |||
|- | |||
|5/E | |||
|FH | |||
|0.1 m/s | |||
|''Uurgemiddelde windsnelheid (in 0.1 m/s). Zie [http://www.knmi.nl/kennis-en-datacentrum/achtergrond/klimatologische-brochures-en-boeken]'' | |||
|} | |||
{{article end | {{article end |
Revision as of 15:27, 16 February 2023
The hourly wind speed from the KNMI weather data table column FH has to be divided by 10, since it is defined in 0.1 m/s.
Column | Name | Unit | Dutch Description |
---|---|---|---|
2/B | YYYYMMDD | Date | datum (YYYY=jaar,MM=maand,DD=dag) |
3/C | HH | Hour | tijd (HH=uur, UT.12 UT=13 MET, 14 MEZT. Uurvak 05 loopt van 04.00 UT tot 5.00 UT |
4/D | DD | Degrees | Windrichting (in graden) gemiddeld over de laatste 10 minuten van het afgelopen uur (360=noord, 90=oost, 180=zuid, 270=west, 0=windstil 990=veranderlijk. Zie [1] |
5/E | FH | 0.1 m/s | Uurgemiddelde windsnelheid (in 0.1 m/s). Zie [2] |
Notes
- The wind speed (hourly, and daily average) can also be based on an other data source; Potentiele wind (UP): http://projects.knmi.nl/klimatologie/onderzoeksgegevens/potentiele_wind-sigma/. These values are often a few 0.1 m/s higher than the values from the historical KNMI weather data table.