Aviation Weather Reports and Forecasts
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Atmospheric temperature is primarily measured using thermometers - specifically, electrical resistance sensors or liquid-in-glass thermometers - housed in shielded, ventilated enclosures. Satellites can also measure temperature by detecting infrared radiation from different atmospheric layers.
Weather Balloons (Radiosondes) are instruments that are attached to weather balloons that ascend through the troposphere and provide a vertical provide of temperature. Here is an example of how this would look:
| FT | <-- | 6000 | 9000 | --> |
|---|---|---|---|---|
| PDX | <-- | 2141-03 | 4020-06 | --> |
Take the example at 6000 feet, 2141-03, this means we have winds from 210° at a speed of 41 knots and a temperature of -3°C. If we look at the example at 9000 feet, 4020-06, the numbers look a little strange. If we have winds above 100 knots, then 50° is added to the wind direction. So this would mean we have winds coming from 350° at a speed of 120 knots with a temperature of -6°.
This lesson was last edited 1 month, 1 week ago.
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