What is the orographic rain and where is his geographical location?
Not all the water falls for the same reasons
Usually, when we were in the street and it begins to rain, it is that we remembered the umbrella that we don't have. If we are soaked and in a sad situation, we began mentally to insult the Time and we question why it rained. In spite of the whole rain to wet, not always it rains for the same reason.
Orographic Rain
If we are wet because we are in a mountain, then it's because we were "attacked" by the orographic rain or relief rain.
The orographic rain happens when humid winds find, in his dislocation, a mountain. Obviously, they don't make a hole in the mountain; instead, the humid winds go up the mountain. It happen an authentic magic trick at this time, the wind begin to form more clouds and it ends raining. Actually, everything is due to something what the geographers call thermal gradient.
A cold discovery
The thermal gradient means that the temperature of the air decreases regularly whenever we are going in altitude. Well, this already all knew, when higher more cold. But, and if we say that the temperature reduces 6,5th celsius for each 1000 meters up? Uauu, that's a lot! Let us see the following example: the city A is in a plain at 0 meters of altitude, the temperature is of 13 degrees Celsius; to the side it is the mountain B, with 2000 meters of altitude and his temperature in the summit, at the same hour, it is 0º Celsius. Well, I am already cold.
We will return to our humid winds. They has just found a mountain in his path. For us to continue his path will have to go up the mountain and, as they are going arising, they are going cooling (6,5º Celsius for each 1000 meters of altitude). If the ascent goes sufficiently big, the steam of water that lay in those winds will change of state. No, it won't marry. It will pass of the gaseous state for the liquid state.
A gigantic freezer
All of us already looked amazed to the clouds in the sky. A lot of people try to discover forms of animals or objects in it. Do another simply think, why (the clouds) doesn't fall on top of my head? Well, the answer is simple: it is steam of water that, as we know to the glance for kettle of the tea, it is lighter than the air, arising happily for the sky, or in our case, for the ceiling of the kitchen.
What do also know already it is that a freezer invisible, the famous thermal gradient, exists remember? That of the 6,5º Celsius for each 100 meters. Now our thermal gradient will transform the steam of water of the winds humid, of the gaseous state for the liquid state. Are they to see the implications of this change? No! Well, try to turn a glass on top full of water of your head. It is, the water didn't arise as the steam, on the contrary, it fell us in the head. After all, the water in the liquid state is heavier than the water in the gaseous state. It is so heavier than doesn't get to be to hover in the air as a cloud, and it ends falling, creating the orographic rains or relief relief. Humm, where is it that will find a hair dryer?
A turn in the Russian mountain
If we imagine the trip of the winds humid as a turn in the Russian mountain, easily we noticed that the sensations of the descent will be very different from the sensations of the ascent. In the same way that the more high more cold, the more down hotter it will be. Like this, no longer we can transform the steam of water in rain. The one that we will obtain is a drier and hotter air, that's great because it will help to dry our clothes.
