How to calculate the hourly wind speed: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 32: | Line 32: | ||
{{article end | {{article end | ||
|notes= | |notes= | ||
* The values at each hour regard the measurement over the preceding hour up to that time. To obtain the value for 12am, the values at 12am must be used. | |||
* The wind speed ([[KNMI weather data#Hourly_wind_speed|hourly]], and [[KNMI weather data#Daily_average_wind_speed|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. | * The wind speed ([[KNMI weather data#Hourly_wind_speed|hourly]], and [[KNMI weather data#Daily_average_wind_speed|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. | ||
|seealso= | |seealso= | ||
Revision as of 08:18, 5 February 2024
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.
.png)
| 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 |
Notes
- The values at each hour regard the measurement over the preceding hour up to that time. To obtain the value for 12am, the values at 12am must be used.
- 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.