A cold air mass from Canada has a temperature of 10 degrees Fahrenheit and a rel
ID: 803679 • Letter: A
Question
A cold air mass from Canada has a temperature of 10 degrees Fahrenheit and a relative humidity of 90%. This air mass is moving southeast while another air mass is moving from the gulf of Mexico towards the Northeast. The gulf air mass has a temperature of 60 degrees Fahrenheit and a relative humidity of 22%.
A. What is the mixing ratio of each air Mass? Canada and Gulf.
B. What is the temperature-dew-point spread for each? Canada and Gulf.
C What is the saturation deficit of each air mass? Canada and Gulf
D. If these two air masses meet and mix, which one is the most logical source of precipitation that might result? Why?
Explanation / Answer
A cold air mass from Canada has a temperature of 10 degrees Fahrenheit and a relative humidity of 90%. This air mass is moving southeast while another air mass is moving from the gulf of Mexico towards the Northeast. The gulf air mass has a temperature of 60 degrees Fahrenheit and a relative humidity of 22%.
A. What is the mixing ratio of each air Mass? Canada and Gulf.
Canada area air mass is maximum because of low temperature and high humidity.
Where Gulf air mass is minimum because of warmer temperature and low humidity.
The mixing ratio of Canada and Gulf will be medium air mass
B. What is the temperature-dew-point spread for each? Canada and Gulf.
Dew point is high for Canada and low for Gulf
C. What is the saturation deficit of each air mass? Canada and Gulf
Saturation deficit is a difference of saturation vapour pressure to actual vapour pressure. It is more for Canada and less for Gulf
D. If these two air masses meet and mix, which one is the most logical source of precipitation that might result? Why?
If two air masses mix the warmer climate air mass yield in more precipitation than the colder atmosphere air mass. Relatively warmer climate reduces the humidity and leads to precipitation.
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