Phase 1 data verification
Temperature & Humidity
Temperature & Air Pressure
Temperature & UV
There is no link between UV levels and how hot or cold the temperature is. There are differences between UV levels during Summer and Winter, but this is mostly due to the angle of the sun in the sky. UV levels generally peak around the middle of the day, whilst the temperature may still be rising towards its maximum in the afternoon. The graph above outlines this relationship
Temperature & Altitude
The temperature at sea level, under standard conditions, is taken to be 15 degrees C. As we go up or our altitude increases, temperature falls. The rate of decrease of temperature is 6.5 degrees C for each 1 km altitude change. This can also be written as 3.6 degree F for every 1000 ft increase in altitude.
Atmospheric Pressure & Humidity
Atmospheric Pressure & Altitude
Pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.
Humidity & Altitude
Absolute humidity is the total measure of water in the atmosphere (not percentage of saturation). As you get higher in altitude, the atmosphere becomes thinner (less pressure). This means that the total amount of water vapor the atmosphere can potentially hold is decreased.