Dew Point Calculation and Cloud Formation in Mountain Wind Flow

[Sunshin3]

Dew point Calculation-Please help me!

Homework Statement

Consider a strong wind aloft that forces air to flow over the mountains from A to E, as in the diagram below. Assume the surface temperature at A is 21 degrees C and the dew point temperature is 5 degrees C; and that any moisture that condenses out of the air falls as precipitation and is left behind. The elevations are: A – 0 m; B – 3000 m; C – 1000 m; D – 5000 m; E – 500 m.


(i) What are the temperatures and dew point temperatures at B, C, D and E?
(ii) Identify where clouds are formed (hint: this is important to part (i).
(iii) How would your answer for E be different if there was no valley at C; that is, if the air flowed upward all the way from A to D?

Homework Equations

DALR = 10.0 degrees C/km (Dry adiabatic lapse rate)
MADR = 6.0 degrees C/km (Moist adiabatic lapse rate)
DWLR = 2.0 degrees C/km (Dew point lapse rate)

The Attempt at a Solution

I really DOnt know how to start this question, i think the clouds are formed on the left side of the moutain.

 

[member 553083]

For part (iii) i think the answer would be the same because the temperature and dew point would still decrease with elevation.