Temperature and Humidity
From the data gathered over the last week it is possible to create a graph comparing temperature and humidity. It is a common confusion to believe that the warmer the temperature is, the higher the humidity is. This is often due to the lack of knowledge concerning relative and absolute humidity. Relative humidity is the amount of water the air can obtain which is dependent on temperature (measure in %). Absolute humidity is the amount of water in the air (measure in mL). Even though it is possible for warm air to obtain more moisture than cool air, it doesn't necessarily mean that it does. For example: The total humidity in a room at 10°C has a relative humidity of 100%. If the temperature is increased to 20°C the change in temperature will create pressure causing the air to expand, but not necessarily the water. This means that the relative humidity of the room has lowered, even though the amount of water (absolute humidity) remains the same, because the air has expanded. If the absolute humidity remains the same throughout temperature change, the higher the temperature is, the lower the relative humidity will be. This is not always the case because it is possible for warm air to contain more moisture, even if it isn't always filled to its maximum capacity.
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Data from Wednesday the 6th show that the highest humidity point also shared the lowest dew point. When the temperature and the dew point are close together, the air is almost completely saturated with water. Clouds are grey because they reflect off the surface of the earth, and the more saturated the cloud the darker the reflection will be.
The heat index is a measure of how we perceive heat in the atmosphere, factoring in humidity along with temperature. This is important because when humidity is combined with heat, it feels much hotter than when the humidity is lower. The same can be said about the temperature combined with wind feeling cooler than just temperature alone. The wind chill factor is used to measure how we perceive cold in the atmosphere.
The heat index is a measure of how we perceive heat in the atmosphere, factoring in humidity along with temperature. This is important because when humidity is combined with heat, it feels much hotter than when the humidity is lower. The same can be said about the temperature combined with wind feeling cooler than just temperature alone. The wind chill factor is used to measure how we perceive cold in the atmosphere.