Dew Point Calculation and Cloud Formation in Mountain Wind Flow

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AI Thread Summary
The discussion focuses on calculating temperatures and dew point temperatures at various elevations in a mountain wind flow scenario, starting from a surface temperature of 21 degrees C and a dew point of 5 degrees C at point A. Participants are tasked with determining the temperatures and dew points at points B, C, D, and E, while identifying where cloud formation occurs, which is essential for accurate calculations. The dry adiabatic lapse rate (DALR), moist adiabatic lapse rate (MADR), and dew point lapse rate (DWLR) are provided as key equations for solving the problem. There is uncertainty expressed about how to begin the calculations, with an initial assumption that clouds form on the left side of the mountain. The discussion also considers how the absence of a valley at point C would affect the temperature and dew point at point E, suggesting that the results would remain consistent despite the change in terrain.
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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.
 
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For part (iii) i think the answer would be the same because the temperature and dew point would still decrease with elevation.
 

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