The diagram below represents a high island in the trade wind belt of the South P
ID: 287504 • Letter: T
Question
The diagram below represents a high island in the trade wind belt of the South Pacific Ocean, with two cities named Suva and Lautoka on either side. Strong moist south east trade winds persist for much of the year. Suva is on the windward side (eastern side) while Lautoka is on the leeward side (western side) of the island. DALR = 1°C/100 m; SALR = 0.6°C/100 m. 1200 m NW SE wind direction Suva Lautoka Now attempt the following questions. Show your workings and calculations where necessary. Draw your workings on the diagram if this helps.Explanation / Answer
a. Since it is given that the temperature in Suva at sea level is 29 degree celsius. We know that the air will rise at the dry adiabatic rate is 1 degree celsius per 100 m which means that temperature of the air will be lowered by 1 degree celsius per 100 m rise in elevation of air. So assuming that temperature at sea level or 0m is 29 degree celsius. The temperature at 100 m will be 28 degree celsius and similarly the temperature of the air at 300 m elevation will be 26 degree celsius.
b. Since the air rises at the dry adiabatic rate which mean that the temperature of air will be cooled by 1 degree celsius per 100 m rise in elevation of air. So the air at 500 m of elevation will be 24 degree celsius.
c. The cloud will form when the dew point temperature equals the temperature of the air.
e. Since we know that the the temperature of the air lowers according to the dry adiabatic rate which is 1 degree celsius per 100m rise in elevation of the air. It is given that the temperature of the air at sea level or 0 m is 29 degree celsius. On applying the dry adiabatic rate the temperature of the air at the top of mountain i.e. at 1200 m will be 17 degree celsius.