AVS 1201 Fall 2023 Exam 2 Study Guide Quiz

Study Notes

Relative Humidity on Skew-T Chart

Relative humidity can be calculated using the saturation mixing ratio and the actual mixing ratio.
The saturation mixing ratio is found on the Skew-T chart by following the temperature line directly up until it intersects the dew point line.
The actual mixing ratio is found by following the pressure line on the Skew-T chart up to the temperature line.

Temperature and Dew Point Relationship

As temperature increases, if dew point stays constant, relative humidity decreases.
This is because the air becomes less saturated with moisture.

Temperature and Relative Humidity

An increase in temperature decreases relative humidity, assuming dew point is constant.
Relative humidity decreases because the air's ability to hold water increases.
The water vapor concentration remains the same, but the capacity of the air to hold water is higher, resulting in lower relative humidity.

Dew Point Depression and Relative Humidity

Dew point depression is the difference between the air temperature and the dew point.
As dew point depression increases, relative humidity decreases.
This is because a larger temperature difference between the air and the dew point indicates that the air is less saturated with moisture.

Wet-Bulb Temperature on Skew-T Chart

Wet-bulb temperature is estimated on the Skew-T chart by following the temperature line to the saturation mixing ratio curve, and then following the saturation mixing ratio curve to the corresponding pressure level.
The temperature at the pressure level is the wet-bulb temperature.

Description

Prepare for your AVS 1201 Fall 2023 Exam 2 with this study guide covering SKEW-T Log P diagrams, radiosondes, humidity, and stability. Test your knowledge on relative humidity calculations with a given dew point and temperature at a specific pressure level.