Heat Stress Module theory - Revision history

Maxim@tygron.com at 07:18, 9 July 2026

2026-07-09T07:18:07Z

← Older revision		Revision as of 07:18, 9 July 2026
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	* Each [[Dates_(Heat_Overlay)\|date-time]] created in the Heat Stress Overlay configuration wizard will be its own timestep.		* Each [[Dates_(Heat_Overlay)\|date-time]] created in the Heat Stress Overlay configuration wizard will be its own timestep.
	* Although the DPRA report description states that atmospheric temperature is calculated once, it must be calculated every timestep because the formula requires an 'hour of day' parameter.		* Although the DPRA report description states that atmospheric temperature is calculated once, it must be calculated every timestep because the formula requires an 'hour of day' parameter.
	* ~~We have not implemented an automatic~~ translation to future KNMI WH-scenarios. However, ~~since users~~ can ~~provide their own~~ weather station data~~, it can be configured manually~~.		* Automatic translation to future KNMI WH-scenarios is not supported. However, these can be configured manually by providing custom weather station data.
	}}		}}
	{{HeatOverlay_formula_nav}}		{{HeatOverlay_formula_nav}}

Frank@tygron.nl at 09:05, 8 July 2026

2026-07-08T09:05:21Z

← Older revision		Revision as of 09:05, 8 July 2026
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	This page describes the algorithm prescribed by the {{Template:Heat_DPRA_Report}}. For a visual overview of the Heat Stress Module, see [[Heat_Stress_module_overview\|Heat Stress Overview]].		This page describes the algorithm prescribed by the {{Template:Heat_DPRA_Report}}. For a visual overview of the Heat Stress Module, see [[Heat_Stress_module_overview\|Heat Stress Overview]].
	==Algorithm==		==Algorithm==
	The ~~calculation prescription of the~~ DPRA report is implemented as ~~followed~~:		The DPRA report calculations are implemented as follows:

	At the start of the calculation, the following data is pre-calculated for each cell:		At the start of the calculation, the following data is pre-calculated for each cell:
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	\|notes=		\|notes=
	* Each [[Dates_(Heat_Overlay)\|date-time]] created in the Heat Stress Overlay configuration wizard will be its own timestep.		* Each [[Dates_(Heat_Overlay)\|date-time]] created in the Heat Stress Overlay configuration wizard will be its own timestep.
	* In the DPRA report ~~step~~ description~~, the~~ atmospheric temperature is ~~only~~ calculated once~~. However~~, the ~~Atmospheric temperature~~ formula ~~used~~ an hour of day ~~input~~ parameter ~~and should therefore be performed each timestep~~.		* Although the DPRA report description states that atmospheric temperature is calculated once, it must be calculated every timestep because the formula requires an 'hour of day' parameter.
	* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.		* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.
	}}		}}
	{{HeatOverlay_formula_nav}}		{{HeatOverlay_formula_nav}}

Frank@tygron.nl: Frank@tygron.nl moved page Heat Module theory to Heat Stress Module theory

2026-04-13T11:57:57Z

Frank@tygron.nl moved page Heat Module theory to Heat Stress Module theory

← Older revision	Revision as of 11:57, 13 April 2026
(No difference)

Frank@tygron.nl at 11:34, 13 April 2026

2026-04-13T11:34:00Z

Frank@tygron.nl at 15:15, 23 January 2024

2024-01-23T15:15:33Z

← Older revision		Revision as of 15:15, 23 January 2024
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	* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.		* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.
	}}		}}
	{{~~Template:~~HeatOverlay_formula_nav}}		{{HeatOverlay_formula_nav}}

Frank@tygron.nl at 17:31, 31 January 2023

2023-01-31T17:31:18Z

← Older revision		Revision as of 17:31, 31 January 2023
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	This page describes the algorithm prescribed by the {{Template:Heat_DPRA_Report}}. For a ~~[[Heat Module overview\|~~visual overview]] of the Heat Stress Module, see [[Heat_Stress_module_overview\|Heat Stress Overview]].		This page describes the algorithm prescribed by the {{Template:Heat_DPRA_Report}}. For a visual overview of the Heat Stress Module, see [[Heat_Stress_module_overview\|Heat Stress Overview]].
	==Algorithm==		==Algorithm==
	The calculation prescription of the DPRA report is implemented as followed:		The calculation prescription of the DPRA report is implemented as followed:

Frank@tygron.nl at 17:30, 31 January 2023

2023-01-31T17:30:44Z

← Older revision		Revision as of 17:30, 31 January 2023
Line 1:		Line 1:
	This page describes the algorithm prescribed by the {{Template:Heat_DPRA_Report}}. For a [[~~Heat_module_overview~~\|visual overview]] of the Heat Stress Module, see [[Heat_Stress_module_overview\|Heat Stress Overview]].		This page describes the algorithm prescribed by the {{Template:Heat_DPRA_Report}}. For a [[Heat Module overview\|visual overview]] of the Heat Stress Module, see [[Heat_Stress_module_overview\|Heat Stress Overview]].
	==Algorithm==		==Algorithm==
	The calculation prescription of the DPRA report is implemented as followed:		The calculation prescription of the DPRA report is implemented as followed:

Frank@tygron.nl: /* Notes */

2023-01-25T17:03:34Z

Notes

← Older revision		Revision as of 17:03, 25 January 2023
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	# The [[Diffuse radiation formula (Heat Overlay)\|diffuse radiation formula]] is applied to calculate the diffuse radiation.		# The [[Diffuse radiation formula (Heat Overlay)\|diffuse radiation formula]] is applied to calculate the diffuse radiation.
	# The [[PET formulas (Heat Overlay)\|physiological equivalent temperature formulas]] are applied to calculate the final [[Pet result type (Heat Overlay)\|physiological equivalent temperature (PET)]].		# The [[PET formulas (Heat Overlay)\|physiological equivalent temperature formulas]] are applied to calculate the final [[Pet result type (Heat Overlay)\|physiological equivalent temperature (PET)]].
	~~==Notes=~~=		{{article end
			\|notes=
	* Each [[Dates_(Heat_Overlay)\|date-time]] created in the Heat Overlay configuration wizard will be its own timestep.		* Each [[Dates_(Heat_Overlay)\|date-time]] created in the Heat Overlay configuration wizard will be its own timestep.
	* In the DPRA report step description, the atmospheric temperature is only calculated once. However, the Atmospheric temperature formula used an hour of day input parameter and should therefore be performed each timestep.		* In the DPRA report step description, the atmospheric temperature is only calculated once. However, the Atmospheric temperature formula used an hour of day input parameter and should therefore be performed each timestep.
	* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.		* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.
			}}
	{{Template:HeatOverlay_formula_nav}}		{{Template:HeatOverlay_formula_nav}}

Frank@tygron.nl at 11:53, 13 September 2021

2021-09-13T11:53:52Z

← Older revision		Revision as of 11:53, 13 September 2021
Line 20:		Line 20:
	* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.		* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.
	{{Template:HeatOverlay_formula_nav}}		{{Template:HeatOverlay_formula_nav}}

	~~{{Template:Heat_Module_buttons}}~~

Rudolf@tygron.nl: Rudolf@tygron.nl moved page Calculation models and formulas (Heat Overlay) to Heat Module theory

2020-12-14T12:31:55Z

Rudolf@tygron.nl moved page Calculation models and formulas (Heat Overlay) to Heat Module theory

← Older revision	Revision as of 12:31, 14 December 2020
(No difference)

← Older revision		Revision as of 11:34, 13 April 2026
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	At the start of the calculation, the following data is pre-calculated for each cell:		At the start of the calculation, the following data is pre-calculated for each cell:
	# The [[foliage height calculation model (Heat Overlay)\|foliage height calculation model]] is used to calculate the [[Foliage result type (Heat Overlay)\|foliage height]] (if applicable).		# The [[foliage height calculation model (Heat Stress Overlay)\|foliage height calculation model]] is used to calculate the [[Foliage result type (Heat Stress Overlay)\|foliage height]] (if applicable).
	# The [[sky view factor calculation model (Heat Overlay)\|sky view calculation model]] is used to calculate the [[Sky view result type (Heat Overlay)\|sky view factor]].		# The [[sky view factor calculation model (Heat Stress Overlay)\|sky view calculation model]] is used to calculate the [[Sky view result type (Heat Stress Overlay)\|sky view factor]].
	# The [[average calculation model (Heat Overlay)\| average calculation model]] is used to calculate the [[vegetation avg result type (Heat Overlay)\|averaged vegetation fraction]] and the [[Sky view avg result type (Heat Overlay)\|averaged sky view factor]].		# The [[average calculation model (Heat Stress Overlay)\| average calculation model]] is used to calculate the [[vegetation avg result type (Heat Stress Overlay)\|averaged vegetation fraction]] and the [[Sky view avg result type (Heat Stress Overlay)\|averaged sky view factor]].
	# The [[UHI formula (Heat Overlay)\|urban heat island formula]] is applied to calculate the [[Uhi result type (Heat Overlay)\|urban heat island effect value]].		# The [[UHI formula (Heat Stress Overlay)\|urban heat island formula]] is applied to calculate the [[Uhi result type (Heat Stress Overlay)\|urban heat island effect value]].

	Then, for each timeframe, the following data is calculated per cell:		Then, for each timeframe, the following data is calculated per cell:
	# The [[temperature formulas (Heat Overlay)\|temperature formulas]] are applied to calculate the [[temperature atmosphere result type (Heat Overlay)\|atmospheric temperature]], and the Wet-bulb temperature.		# The [[temperature formulas (Heat Stress Overlay)\|temperature formulas]] are applied to calculate the [[temperature atmosphere result type (Heat Stress Overlay)\|atmospheric temperature]], and the Wet-bulb temperature.
	# The [[shade calculation model (Heat Overlay)\|shade calculation model]] is used to determine whether the cell is [[shade result type (Heat Overlay)\|shaded]].		# The [[shade calculation model (Heat Stress Overlay)\|shade calculation model]] is used to determine whether the cell is [[shade result type (Heat Stress Overlay)\|shaded]].
	# The [[Wind calculation model (Heat Overlay)\|wind calculation model]] is used to determine the [[Wind speed result type (Heat Overlay)\|wind speed]] (using [[Weather station (Heat Overlay)\|weather station data]]).		# The [[Wind calculation model (Heat Stress Overlay)\|wind calculation model]] is used to determine the [[Wind speed result type (Heat Stress Overlay)\|wind speed]] (using [[Weather station (Heat Stress Overlay)\|weather station data]]).
	# The [[Diffuse radiation formula (Heat Overlay)\|diffuse radiation formula]] is applied to calculate the diffuse radiation.		# The [[Diffuse radiation formula (Heat Stress Overlay)\|diffuse radiation formula]] is applied to calculate the diffuse radiation.
	# The [[PET formulas (Heat Overlay)\|physiological equivalent temperature formulas]] are applied to calculate the final [[Pet result type (Heat Overlay)\|physiological equivalent temperature (PET)]].		# The [[PET formulas (Heat Stress Overlay)\|physiological equivalent temperature formulas]] are applied to calculate the final [[Pet result type (Heat Stress Overlay)\|physiological equivalent temperature (PET)]].
	{{article end		{{article end
	\|notes=		\|notes=
	* Each [[Dates_(Heat_Overlay)\|date-time]] created in the Heat Overlay configuration wizard will be its own timestep.		* Each [[Dates_(Heat_Overlay)\|date-time]] created in the Heat Stress Overlay configuration wizard will be its own timestep.
	* In the DPRA report step description, the atmospheric temperature is only calculated once. However, the Atmospheric temperature formula used an hour of day input parameter and should therefore be performed each timestep.		* In the DPRA report step description, the atmospheric temperature is only calculated once. However, the Atmospheric temperature formula used an hour of day input parameter and should therefore be performed each timestep.
	* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.		* We have not implemented an automatic translation to future KNMI WH-scenarios. However, since users can provide their own weather station data, it can be configured manually.
	}}		}}
	{{HeatOverlay_formula_nav}}		{{HeatOverlay_formula_nav}}