How to calculate the hourly wind direction - Revision history

Frank@tygron.nl at 12:27, 13 April 2026

2026-04-13T12:27:40Z

← Older revision		Revision as of 12:27, 13 April 2026
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	The [[Wind_direction_(~~Heat_Overlay~~)\|hourly wind direction]] from the [[KNMI weather data]] table column ''DD'' is presented in degrees and oriented towards the north, which means we can use it directly.		The [[Wind_direction_(Heat Stress Overlay)\|hourly wind direction]] from the [[KNMI weather data]] table column ''DD'' is presented in degrees and oriented towards the north, which means we can use it directly.

	[[File:Tutorial_hourly_wind_direction_(Heat_Overlay).png]]		[[File:Tutorial_hourly_wind_direction_(Heat_Overlay).png]]
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	* The values at each hour regard the measurement over the preceding hour up to that time. To obtain the value for 12:00 UTC, the values at 12:00 UTC must be used.		* The values at each hour regard the measurement over the preceding hour up to that time. To obtain the value for 12:00 UTC, the values at 12:00 UTC must be used.
	\|seealso=		\|seealso=
	* [[Wind direction (Heat Overlay)]]		* [[Wind direction (Heat Stress Overlay)]]
	* [[KNMI weather data]]		* [[KNMI weather data]]
	}}		}}

	[[Category:How-to's]]		[[Category:How-to's]]

Rudolf@tygron.nl at 08:26, 5 February 2024

2024-02-05T08:26:50Z

← Older revision		Revision as of 08:26, 5 February 2024
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	{{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 values at each hour regard the measurement over the preceding hour up to that time. To obtain the value for 12:00 UTC, the values at 12:00 UTC must be used.
	\|seealso=		\|seealso=
	* [[Wind direction (Heat Overlay)]]		* [[Wind direction (Heat Overlay)]]

Rudolf@tygron.nl at 08:15, 5 February 2024

2024-02-05T08:15:48Z

← Older revision		Revision as of 08:15, 5 February 2024
Line 26:		Line 26:
	{{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.
	\|seealso=		\|seealso=
	* [[Wind direction (Heat Overlay)]]		* [[Wind direction (Heat Overlay)]]

Frank@tygron.nl at 13:27, 30 January 2024

2024-01-30T13:27:54Z

← Older revision		Revision as of 13:27, 30 January 2024
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	* [[KNMI weather data]]		* [[KNMI weather data]]
	}}		}}

			[[Category:How-to's]]

Frank@tygron.nl at 15:26, 16 February 2023

2023-02-16T15:26:36Z

@@ Line 22: / Line 22: @@
 |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]''
 |}

Frank@tygron.nl at 15:26, 16 February 2023

2023-02-16T15:26:22Z

← Older revision		Revision as of 15:26, 16 February 2023
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	[[File:Tutorial_hourly_wind_direction_(Heat_Overlay).png]]		[[File:Tutorial_hourly_wind_direction_(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]''
			\|-
			\|6/F
			\|FF
			\|0.1 m/s
			\|''Windsnelheid (in 0.1 m/s) gemiddeld over de laatste 10 minuten van het afgelopen uur''
			\|-
			\|7/G
			\|FX
			\|0.1 m/s
			\|''Hoogste windstoot (in 0.1 m/s) over het afgelopen uurvak''
			\|-
			\|8/H
			\|T
			\|0.1 °C
			\|''Temperatuur (in 0.1 graden Celsius) op 1.50 m hoogte tijdens de waarneming''
			\|-
			\|9/I
			\|T10
			\|0.1 °C
			\|''Minimumtemperatuur (in 0.1 graden Celsius) op 10 cm hoogte in de afgelopen 6 uur''
			\|-
			\|11/J
			\|TD
			\|0.1 °C
			\|''Dauwpuntstemperatuur (in 0.1 graden Celsius) op 1.50 m hoogte tijdens de waarneming''
			\|-
			\|12/K
			\|SQ
			\|0.1 hours (=6 minutes)
			\|''Duur van de zonneschijn (in 0.1 uren) per uurvak, berekend uit globale straling (-1 for <0.05 uur); ''
			\|-
			\|13/L
			\|Q
			\|J/cm2
			\|''Globale straling (in J/cm2) per uurvak;''
			\|-
			\|14/M
			\|DR
			\|0.1 hours (=6 minutes)
			\|''Duur van de neerslag (in 0.1 uur) per uurvak''
			\|-
			\|15/N
			\|
			\|
			\|
			\|-
			\|16/O
			\|RH
			\|0.1 mm
			\|''Uursom van de neerslag (in 0.1 mm) (-1 voor <0.05 mm)''
			\|-
			\|17/P
			\|P
			\|0.1 hPa
			\|''Luchtdruk (in 0.1 hPa) herleid naar zeeniveau, tijdens de waarneming''
			\|-
			\|18/Q
			\|VV
			\|m
			\|''Horizontaal zicht tijdens de waarneming (0=minder dan 100m, 1=100-200m, 2=200-300m,..., 49=4900-5000m, 50=5-6km, 56=6-7km, 57=7-8km, ..., 79=29-30km, 80=30-35km, 81=35-40km,..., 89=meer dan 70km)''
			\|-
			\|19/R
			\|N
			\|%
			\|''Bewolking (bedekkingsgraad van de bovenlucht in achtsten), tijdens de waarneming (9=bovenlucht onzichtbaar)''
			\|-
			\|20/S
			\|U
			\|%
			\|''Relatieve vochtigheid (in procenten) op 1.50 m hoogte tijdens de waarneming''
			\|-
			\|21/T
			\|WW
			\|#
			\|''Weercode (00-99), visueel(WW) of automatisch(WaWa) waargenomen, voor het actuele weer of het weer in het afgelopen uur. Zie http://bibliotheek.knmi.nl/scholierenpdf/weercodes_Nederland''
			\|-
			\|22/U
			\|IX
			\|
			\|''Bewolking (bedekkingsgraad van de bovenlucht in achtsten), tijdens de waarneming (9=bovenlucht onzichtbaar)''
			\|}

	{{article end		{{article end

Frank@tygron.nl at 15:14, 16 February 2023

2023-02-16T15:14:53Z

← Older revision		Revision as of 15:14, 16 February 2023
Line 1:		Line 1:
	The [[Wind_direction_(Heat_Overlay)\|hourly wind direction]] from the [[KNMI weather data]] table column is presented in degrees and oriented towards the north, which means we can use it directly.		The [[Wind_direction_(Heat_Overlay)\|hourly wind direction]] from the [[KNMI weather data]] table column ''DD'' is presented in degrees and oriented towards the north, which means we can use it directly.

	[[File:Tutorial_hourly_wind_direction_(Heat_Overlay).png]]		[[File:Tutorial_hourly_wind_direction_(Heat_Overlay).png]]

Frank@tygron.nl at 15:14, 16 February 2023

2023-02-16T15:14:40Z

← Older revision		Revision as of 15:14, 16 February 2023
Line 1:		Line 1:
	The [[Wind_direction_(Heat_Overlay)\|hourly wind direction]] from the table is presented in degrees and oriented towards the north, which means we can use it directly.		The [[Wind_direction_(Heat_Overlay)\|hourly wind direction]] from the [[KNMI weather data]] table column is presented in degrees and oriented towards the north, which means we can use it directly.

	[[File:Tutorial_hourly_wind_direction_(Heat_Overlay).png]]		[[File:Tutorial_hourly_wind_direction_(Heat_Overlay).png]]

Frank@tygron.nl at 15:09, 16 February 2023

2023-02-16T15:09:38Z

← Older revision		Revision as of 15:09, 16 February 2023
Line 6:		Line 6:
	\|notes=		\|notes=
	\|seealso=		\|seealso=
			* [[Wind direction (Heat Overlay)]]
	* [[KNMI weather data]]		* [[KNMI weather data]]
	}}		}}

Frank@tygron.nl at 15:04, 16 February 2023

2023-02-16T15:04:47Z

← Older revision		Revision as of 15:04, 16 February 2023
Line 1:		Line 1:
	~~===Hourly wind direction===~~
	The [[Wind_direction_(Heat_Overlay)\|hourly wind direction]] from the table is presented in degrees and oriented towards the north, which means we can use it directly.		The [[Wind_direction_(Heat_Overlay)\|hourly wind direction]] from the table is presented in degrees and oriented towards the north, which means we can use it directly.

Line 9:		Line 8:
	* [[KNMI weather data]]		* [[KNMI weather data]]
	}}		}}

	~~{{Heat Module buttons}}~~