Podcast
Questions and Answers
What is the correct method for calculating relative humidity using the SKEW-T chart?
What is the correct method for calculating relative humidity using the SKEW-T chart?
- Dividing the mixing ratio by the saturation mixing ratio and multiplying by 100% (correct)
- Dividing the temperature by the dew point temperature and multiplying by 100%
- Using the difference between the dew point temperature and the temperature
- Dividing the dew point temperature by the temperature and multiplying by 100%
What is the relationship between temperature and relative humidity when the dew point is relatively constant?
What is the relationship between temperature and relative humidity when the dew point is relatively constant?
- As temperature increases, relative humidity increases
- Temperature and relative humidity are not related when the dew point is constant
- As temperature increases, relative humidity decreases (correct)
- Relative humidity remains constant regardless of temperature changes
What happens to relative humidity if the temperature increases?
What happens to relative humidity if the temperature increases?
- Relative humidity remains constant
- The relationship between temperature and relative humidity is unpredictable
- Relative humidity decreases (correct)
- Relative humidity increases
What is the correct relationship between dew point depression and relative humidity?
What is the correct relationship between dew point depression and relative humidity?
How is wet-bulb temperature estimated using the SKEW-T chart?
How is wet-bulb temperature estimated using the SKEW-T chart?
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.
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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.
