With the autumn fluctuations.. Discover the difference between the recorded and tangible temperature

Arab Weather - Sometimes a person feels that the temperature he experiences is different from that announced in the weather forecast. This difference depends on a set of factors that affect a person's feeling of hot or cold. What are these factors? And why does this discrepancy occur between the recorded temperature and the tangible temperature that a person feels?

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What is temperature and how is it measured?

Temperature, also known as temperature, is a measure of the amount of thermal energy contained in a particular object or system. Temperature indicates how hot or cold objects are.

Temperature is measured using a thermometer, which gives measurements in several systems, such as Celsius (°C) or Fahrenheit (°F).

Factors affecting air temperature

Temperature plays a major role in determining weather and climate, so meteorologists measure it constantly. Air temperature represents how hot the air is in a particular area, and depends on several factors, the most important of which are:

1. Solar radiation: It is the main source of heating the earth and air. The more solar radiation, the higher the temperature of the atmosphere.
2. Topography and elevation above sea level: The air temperature in mountainous areas is lower due to the elevation above the ground and lower air pressure.
3. Distribution of water and land: The ability of water and land to absorb heat differs, which affects the air in contact with them.
4. Wind movement and air masses: Cold air masses can lower the temperature of the area they reach.

How to measure air temperature

When measuring air temperature, conditions that may affect the accuracy of the readings are taken into account. Therefore, the measurement is made at a height of 2 metres above the ground using a thermometer placed in a box that allows air to pass through. In this way, the readings are not affected by sunlight, wind or the temperature of the ground surface.

Why is the perceived temperature different from the recorded temperature?

Despite accurate measurements, humans may experience temperatures that are different from those recorded. A person's perception of temperature, or what is known as "feels-like temperature," depends on several factors, including:

1. Amount of sunlight: Direct exposure to sunlight increases a person's feeling of heat.
2. Humidity: High humidity reduces the ability of sweat to evaporate, making a person feel hotter.
3. Wind speed: Wind increases the evaporation of sweat, which increases the feeling of coldness. For example, if the temperature is 0 degrees Celsius and the wind speed is 10 km/h, the person will feel three degrees cooler than 0 degrees.

The difference between perceived and recorded temperature is due to the complex interaction between environmental factors and the human body. The body's natural process of regulating temperature, such as sweating, plays a major role in determining whether we feel colder or hotter than the thermometer readings indicate.

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What is the difference between recorded temperature and perceived (felt) temperature?