besides humidity..wind..temperature and wind speed is there any thing else that effects the rain fall?
2006-09-07 21:28:49 · 11 answers · asked by vahideh 1 in Science & Mathematics ➔ Weather
The lay of the land...mountains can effect precipitation...it is called Orographic precipitation....here is an exerpt about it:
Orographic precipitation occurs on the windward side of mountains and is caused by the rising air motion of a large-scale flow of moist air across the mountain ridge, resulting in adiabatic cooling and condensation. In parts of the world subjected to relatively consistent winds (for example the trade winds), a wetter climate prevails on the windward side of a mountain than on the leeward (downwind) side as moisture is removed by orographic precipitation, leaving drier air (see katabatic wind) on the descending (generally warming), leeward side where a rain shadow is observed. Similarly, the interior of larger mountain zones is often quite dry, such as the Great Basin in North America.
Orographic precipitation is well known on oceanic islands, such as the Hawaiian Islands, where much of the rainfall received on an island is on the windward side, and the leeward side tends to be quite dry, almost desert-like, by comparison. This phenomenon results in substantial local gradients of average rainfall, with coastal areas receiving on the order of 500 to 750 mm per year (20 to 30 inches), and interior uplands receiving over 2.5 m per year (100 inches). Leeward coastal areas are especially dry 500 mm per year (20 inches)at Waikiki), and the tops of moderately high uplands are especially wet ~12 m per year (~475 inches) at Wai'ale'ale on Kaua'i).
2006-09-07 21:37:08 · answer #1 · answered by ♥austingirl♥ 6 · 0⤊ 1⤋
Barometric pressure. The season itself. The abundance of plant life in a given area has a dramatic effect on rain and the amount or absence thereof.
2006-09-08 02:18:40 · answer #2 · answered by Anonymous · 0⤊ 0⤋
If an area is on the far side of the mountain, it's in what's called the rain shadow and the area will be drier.
2006-09-11 15:13:12 · answer #3 · answered by student 8 2 · 0⤊ 0⤋
The atmospheric pressure
2006-09-11 17:55:35 · answer #4 · answered by Subakthi D 2 · 0⤊ 0⤋
Lifting mechanism
Instability in the atmosphere
Moisture
2006-09-08 11:05:42 · answer #5 · answered by timespiral 4 · 0⤊ 0⤋
topology (eg. mountains can cause rain shadows) and vegetation (all other things being equal, air is cooler over a forest than a grassland)
2006-09-07 21:40:55 · answer #6 · answered by faehuntress 2 · 1⤊ 1⤋
moisture content in the atmosphere, diurnal heating, CAPE, CINH, pollutants in the air, geography, atmospheric instability
2006-09-08 05:12:03 · answer #7 · answered by jcesar 3 · 0⤊ 0⤋
The best scenario is to wash your car and wait.
2006-09-08 03:14:16 · answer #8 · answered by Sick Puppy 7 · 0⤊ 0⤋
wind ain't one of them just temp, humidity and air pressure
2006-09-07 21:29:58 · answer #9 · answered by jsbrads 4 · 0⤊ 4⤋
man made chemical substances
2006-09-07 21:30:51 · answer #10 · answered by Anonymous · 0⤊ 2⤋