Rain Formation

BASIS OF RAIN

So, rain formation. It's the formation of rain! How? The basis of it is that when hot air rises, the pressure would decrease resulting in expansion and then the cooling of water molecules. ---> RAIN This is done by the gases in the atmosphere which causes each molecule to lose energy.
There are three different types of rain. Convection rain, orographic (yes its the correct spelling) rain and frontal rain.

1) Convection Rain - Rain caused by the cycle of evaporation and condensation on the clouds (nothing special)



2) Orographic Rain - Rain caused by natural forces of its surroundings. (usually appears at hilly regions and mountains)


3) Frontal Rain - Rain which is created by the collision of two fronts made of different air masses, the warm front (warm air) and the cold front (cold air). The cold front would "subduct" under the warm front just like how plates subduct under each other.


Reflection
I found the lesson on the formation rather dull as it was rather common sense that how rain basically forms. The only problem is that we do not know what the names of the rain are called. For example, convection rain is basically what we learnt in like primary school. However, the other two types of rains were pretty new and interesting to learn about. Also, there was also a part which mentioned something about the physics of the system of geography which we are all learning about. Didn't find it very important though and I don't think it would be tested until a very very long time so I ignored it and slept through that part :D. (woke up 5 mins later and found out lesson ended anyway)



Nigel Tan JH404