PET formulas (Heat Stress Overlay) - Revision history

Frank@tygron.nl at 11:35, 13 April 2026

2026-04-13T11:35:47Z

Frank@tygron.nl: Frank@tygron.nl moved page PET formulas (Heat Overlay) to PET formulas (Heat Stress Overlay)

2026-04-13T11:34:57Z

Frank@tygron.nl moved page PET formulas (Heat Overlay) to PET formulas (Heat Stress Overlay)

← Older revision	Revision as of 11:34, 13 April 2026
(No difference)

Frank@tygron.nl at 11:52, 13 September 2021

2021-09-13T11:52:42Z

← Older revision		Revision as of 11:52, 13 September 2021
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	{{Template:HeatOverlay_formula_nav}}		{{Template:HeatOverlay_formula_nav}}

	~~{{Template:Heat_Module_buttons}}~~

Rudolf@tygron.nl: /* PET Shade and Night formula */

2020-02-13T15:34:47Z

PET Shade and Night formula

← Older revision		Revision as of 15:34, 13 February 2020
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	* <math>Q_{d,t}</math> is the calculated [[Diffuse_radiation_formula_(Heat_Overlay)\|diffusive radiation]] at time t;		* <math>Q_{d,t}</math> is the calculated [[Diffuse_radiation_formula_(Heat_Overlay)\|diffusive radiation]] at time t;
	* <math>\sigma</math> is the Stefan Boltzmann constant, which is <math>5.670374419...\times 10^{-8} W \cdot m^{-2} \cdot K^{-4}</math>.		* <math>\sigma</math> is the Stefan Boltzmann constant, which is <math>5.670374419...\times 10^{-8} W \cdot m^{-2} \cdot K^{-4}</math>.
			* Constant values are sourced from the {{Heat DPRA Report}};

	{{Template:HeatOverlay_formula_nav}}		{{Template:HeatOverlay_formula_nav}}

	{{Template:Heat_Module_buttons}}		{{Template:Heat_Module_buttons}}

Rudolf@tygron.nl: /* PET Sun formula */

2020-02-13T15:34:28Z

PET Sun formula

← Older revision		Revision as of 15:34, 13 February 2020
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	* <math>B_{b,t}</math> is the [[Bowen_ratio_(Heat_Overlay)\|bowen ratio]] at time t;		* <math>B_{b,t}</math> is the [[Bowen_ratio_(Heat_Overlay)\|bowen ratio]] at time t;
	* <math>S_{vf}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat_Overlay)\|sky view factor]].		* <math>S_{vf}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat_Overlay)\|sky view factor]].
			* Constant values are sourced from the {{Heat DPRA Report}};

	==PET Shade and Night formula==		==PET Shade and Night formula==

Bobby@tygron.nl at 10:45, 17 December 2019

2019-12-17T10:45:14Z

← Older revision		Revision as of 10:45, 17 December 2019
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	{{Template:HeatOverlay_formula_nav}}		{{Template:HeatOverlay_formula_nav}}

			{{Template:Heat_Module_buttons}}

Frank@tygron.nl: /* PET Shade and Night formula */

2019-09-23T11:16:49Z

PET Shade and Night formula

← Older revision		Revision as of 11:16, 23 September 2019
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	where,		where,
	* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;		* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;
	* <math>u_{t}</math> is the calculated [[~~Wind_speed_formula_~~(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;		* <math>u_{t}</math> is the calculated [[Wind_calculation_model_(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;
	* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;		* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;
	* <math>S_{v,f}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat_Overlay)\|sky view factor]];		* <math>S_{v,f}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat_Overlay)\|sky view factor]];

Frank@tygron.nl: /* PET Sun formula */

2019-09-23T11:16:35Z

PET Sun formula

← Older revision		Revision as of 11:16, 23 September 2019
Line 11:		Line 11:
	* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;		* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;
	* <math>Q_{gl,t}</math> is the [[Hourly_radiation_(Heat_Overlay)\|hourly radiation]] at time t;		* <math>Q_{gl,t}</math> is the [[Hourly_radiation_(Heat_Overlay)\|hourly radiation]] at time t;
	* <math>u_{t}</math> is the calculated [[~~Wind_speed_formula_~~(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;		* <math>u_{t}</math> is the calculated [[Wind_calculation_model_(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;
	* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;		* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;
	* <math>\phi_{t}</math> is the [[Sun_altitude_(Heat_Overlay)\|sun altitude]] at time t;		* <math>\phi_{t}</math> is the [[Sun_altitude_(Heat_Overlay)\|sun altitude]] at time t;

Frank@tygron.nl: /* PET Sun formula */

2019-09-20T11:50:24Z

PET Sun formula

← Older revision		Revision as of 11:50, 20 September 2019
Line 15:		Line 15:
	* <math>\phi_{t}</math> is the [[Sun_altitude_(Heat_Overlay)\|sun altitude]] at time t;		* <math>\phi_{t}</math> is the [[Sun_altitude_(Heat_Overlay)\|sun altitude]] at time t;
	* <math>B_{b,t}</math> is the [[Bowen_ratio_(Heat_Overlay)\|bowen ratio]] at time t;		* <math>B_{b,t}</math> is the [[Bowen_ratio_(Heat_Overlay)\|bowen ratio]] at time t;
	* <math>S_{vf}</math> is the calculated [[~~Sky_view_factor_formula_~~(Heat_Overlay)\|sky view factor]].		* <math>S_{vf}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat_Overlay)\|sky view factor]].

	==PET Shade and Night formula==		==PET Shade and Night formula==

Frank@tygron.nl: /* PET Shade and Night formula */

2019-09-20T11:50:12Z

PET Shade and Night formula

← Older revision		Revision as of 11:50, 20 September 2019
Line 25:		Line 25:
	* <math>u_{t}</math> is the calculated [[Wind_speed_formula_(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;		* <math>u_{t}</math> is the calculated [[Wind_speed_formula_(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;
	* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;		* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;
	* <math>S_{v,f}</math> is the calculated [[~~Sky_view_factor_formula_~~(Heat_Overlay)\|sky view factor]];		* <math>S_{v,f}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat_Overlay)\|sky view factor]];
	* <math>Q_{d,t}</math> is the calculated [[Diffuse_radiation_formula_(Heat_Overlay)\|diffusive radiation]] at time t;		* <math>Q_{d,t}</math> is the calculated [[Diffuse_radiation_formula_(Heat_Overlay)\|diffusive radiation]] at time t;
	* <math>\sigma</math> is the Stefan Boltzmann constant, which is <math>5.670374419...\times 10^{-8} W \cdot m^{-2} \cdot K^{-4}</math>.		* <math>\sigma</math> is the Stefan Boltzmann constant, which is <math>5.670374419...\times 10^{-8} W \cdot m^{-2} \cdot K^{-4}</math>.

	{{Template:HeatOverlay_formula_nav}}		{{Template:HeatOverlay_formula_nav}}

← Older revision		Revision as of 11:16, 23 September 2019
Line 23:		Line 23:
	where,		where,
	* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;		* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;
	* <math>u_{t}</math> is the calculated [[~~Wind_speed_formula_~~(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;		* <math>u_{t}</math> is the calculated [[Wind_calculation_model_(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;
	* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;		* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;
	* <math>S_{v,f}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat_Overlay)\|sky view factor]];		* <math>S_{v,f}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat_Overlay)\|sky view factor]];

← Older revision		Revision as of 11:16, 23 September 2019
Line 11:		Line 11:
	* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;		* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;
	* <math>Q_{gl,t}</math> is the [[Hourly_radiation_(Heat_Overlay)\|hourly radiation]] at time t;		* <math>Q_{gl,t}</math> is the [[Hourly_radiation_(Heat_Overlay)\|hourly radiation]] at time t;
	* <math>u_{t}</math> is the calculated [[~~Wind_speed_formula_~~(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;		* <math>u_{t}</math> is the calculated [[Wind_calculation_model_(Heat_Overlay)\|wind speed]] at 1.2 meters above ground time t;
	* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;		* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat_Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;
	* <math>\phi_{t}</math> is the [[Sun_altitude_(Heat_Overlay)\|sun altitude]] at time t;		* <math>\phi_{t}</math> is the [[Sun_altitude_(Heat_Overlay)\|sun altitude]] at time t;

← Older revision		Revision as of 11:35, 13 April 2026
Line 9:		Line 9:

	where,		where,
	* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(~~Heat_Overlay~~)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;		* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat Stress Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;
	* <math>Q_{gl,t}</math> is the [[Hourly_radiation_(~~Heat_Overlay~~)\|hourly radiation]] at time t;		* <math>Q_{gl,t}</math> is the [[Hourly_radiation_(Heat Stress Overlay)\|hourly radiation]] at time t;
	* <math>u_{t}</math> is the calculated [[Wind_calculation_model_(~~Heat_Overlay~~)\|wind speed]] at 1.2 meters above ground time t;		* <math>u_{t}</math> is the calculated [[Wind_calculation_model_(Heat Stress Overlay)\|wind speed]] at 1.2 meters above ground time t;
	* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(~~Heat_Overlay~~)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;		* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat Stress Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;
	* <math>\phi_{t}</math> is the [[Sun_altitude_(~~Heat_Overlay~~)\|sun altitude]] at time t;		* <math>\phi_{t}</math> is the [[Sun_altitude_(Heat Stress Overlay)\|sun altitude]] at time t;
	* <math>B_{b,t}</math> is the [[Bowen_ratio_(~~Heat_Overlay~~)\|bowen ratio]] at time t;		* <math>B_{b,t}</math> is the [[Bowen_ratio_(Heat Stress Overlay)\|bowen ratio]] at time t;
	* <math>S_{vf}</math> is the calculated [[Sky_view_factor_calculation_model_(~~Heat_Overlay~~)\|sky view factor]].		* <math>S_{vf}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat Stress Overlay)\|sky view factor]].
	* Constant values are sourced from the {{Heat DPRA Report}};		* Constant values are sourced from the {{Heat DPRA Report}};

Line 23:		Line 23:

	where,		where,
	* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(~~Heat_Overlay~~)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;		* <math>T_{a,t}</math> is the calculated [[Temperature_formulas_(Heat Stress Overlay)#Atmospheric_Temperature_formula \|atmospheric temperature]] at time t;
	* <math>u_{t}</math> is the calculated [[Wind_calculation_model_(~~Heat_Overlay~~)\|wind speed]] at 1.2 meters above ground time t;		* <math>u_{t}</math> is the calculated [[Wind_calculation_model_(Heat Stress Overlay)\|wind speed]] at 1.2 meters above ground time t;
	* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(~~Heat_Overlay~~)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;		* <math>T_{w,t}</math> is the calculated [[Temperature_formulas_(Heat Stress Overlay)#Wet-bulb_Temperature_formula \| wet-bulb temperature]] at time t;
	* <math>S_{v,f}</math> is the calculated [[Sky_view_factor_calculation_model_(~~Heat_Overlay~~)\|sky view factor]];		* <math>S_{v,f}</math> is the calculated [[Sky_view_factor_calculation_model_(Heat Stress Overlay)\|sky view factor]];
	* <math>Q_{d,t}</math> is the calculated [[Diffuse_radiation_formula_(~~Heat_Overlay~~)\|diffusive radiation]] at time t;		* <math>Q_{d,t}</math> is the calculated [[Diffuse_radiation_formula_(Heat Stress Overlay)\|diffusive radiation]] at time t;
	* <math>\sigma</math> is the Stefan Boltzmann constant, which is <math>5.670374419...\times 10^{-8} W \cdot m^{-2} \cdot K^{-4}</math>.		* <math>\sigma</math> is the Stefan Boltzmann constant, which is <math>5.670374419...\times 10^{-8} W \cdot m^{-2} \cdot K^{-4}</math>.
	* Constant values are sourced from the {{Heat DPRA Report}};		* Constant values are sourced from the {{Heat DPRA Report}};

	{{Template:HeatOverlay_formula_nav}}		{{Template:HeatOverlay_formula_nav}}