Physiological Equivalent Temp

METEOROLOGY – URFACE TEMPERATURE & THERMAL COMFORT CALCULATOR Physiological Equivalent Temp A precise tool.
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What is the Physiological Equivalent Temp & How does it work?

The Physiological Equivalent Temperature (PET) is a measure that quantifies the temperature perceived by humans, taking into account environmental factors such as air temperature, humidity, wind speed, and solar radiation. It helps in assessing thermal comfort levels and potential heat stress.

The formula for PET considers multiple parameters to calculate the effective temperature felt by a person:

PET = T_a + 0.348 times e – 0.70 times v^{0.6} – 0.42 times T_a times v^{0.6} + 0.194 times (T_a – 15) times v^{0.6} – 0.038 times T_a times v^{0.6} times e
T_a = Air temperature in degrees Celsius
e = Water vapor pressure in hPa
v = Wind speed at 10 meters height in m/s
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Parameters
Result —
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Frequently Asked Questions
What is Physiological Equivalent Temperature (PET)?
PET is a measure of how hot or cold the environment feels to humans, taking into account factors like air temperature, humidity, wind speed, and solar radiation.
How do I use this PET calculator?
Input the air temperature, humidity, wind speed, and solar radiation values into the calculator to get the Physiological Equivalent Temperature.
Why is PET important in meteorology?
PET helps assess thermal comfort levels and potential heat stress, which is crucial for understanding how people experience weather conditions.
What factors does PET consider?
PET considers air temperature, humidity, wind speed, and solar radiation to calculate the effective temperature felt by a person.
Can I use this calculator for outdoor activities?
Yes, you can use this calculator to determine the thermal comfort level during outdoor activities based on environmental conditions.
What is the difference between air temperature and PET?
Air temperature is just one factor; PET considers multiple factors including humidity, wind speed, and solar radiation to provide a more accurate measure of how hot or cold it feels.
How does wind affect PET calculations?
Wind affects PET by cooling the body through evaporation, which is represented in the formula with the term involving wind speed (v).

Results are for informational purposes only and do not constitute professional advice.