meghalaya
The correct spelling is orographic rainfall instead of orographic rainfall. When moist air is lifted over a mountain by the wind, the result is orographic rainfall.
The degree to which rainfall amounts vary across an area or over time is called 'rainfall variability'. It has two components viz. saptial variability and temporal variability.
droughts happen because of no rainfall over a period of time.
In 1981, William Gray, the nation's leading hurricane forecaster, published a paper stating that an average hurricane produces a little over half an inch of rain a day within a circular area 825 miles across. If you convert this to a volume of rain, you get about 1.3 x 1015 cubic inches a day. That's enough rain to fill over 22 million Olympic-sized swimming pools!That, of course, is an average. Hurricanes do not all produce the same amounts of rain, nor does it fall uniformly over the area of the cyclone. Furthermore, the effects of a lesser amount of rain may be exaggerated by topography and runoff. In this, as in most things to do with hurricanes, one must be prepared for the worst, and hope for the best.
Lack of rainfall over a long period is likely to result in a drought.
Areas that receive over 400 cm of rainfall are rain forests. The areas that receive less than 20 cm of rainfall are desert areas.
cherranpunji
no Depends what you define as being a "rainforest." The marine climate of British Columbia's west coast from the Alaska border right down to the Washington state border produces heavy rainfall in some forested areas that could be classified as "rain forest" (typically receiving over 90 in. of rainfall a year). These forests do support significant black bear populations though they tend to thrive in areas farther inland where the rainfall is around 50-60 in. annually.
Most areas of the desert receive little rainfall, just a few millimeters of precipitation. Some areas have received absolutely no rainfall in over 400 years.
Antarctica.. a desert is defined by how much rainfall it receives. Although it is made of ice, Antarctica has almost no rainfall per year, some areas have had NO rainfall for thousands of years, so technically, the continent is a desert.
C. E. Hounam has written: 'Climate of the south west wheat belt of N.S.W. with special reference to rainfall over marginal areas' -- subject- s -: Climate, Rain and rainfall 'Problems of evaporation assessment in the water balance' -- subject- s -: Evaporation - Meteorology -, Water balance - Hydrology - 'Climate of the west Australian wheat belt with special reference to rainfall over marginal areas' -- subject- s -: Climate, Rain and rainfall
Relief(or Orographic) rainfall occurs in areas with mountains and/or complex terrains. Warm air is pushed up and over the terrain and cools at the higher altitude, producing rain on the upwind slope and dry conditions on the downwind slope.
The correct spelling is orographic rainfall instead of orographic rainfall. When moist air is lifted over a mountain by the wind, the result is orographic rainfall.
give reason the bulk of rainfall in india is concentrated over a few yearsq
Droughts is the lack of rainfall over a period of time, giving an area a deficit in the normal amount of precipitation. Floods is when there is too much rainfall in single or multipule rain event that the terrain cannot manage the runoff causing the rainfall to back up into areas that normally does not have water like road, homes buildings or bridges.
There are over 2 dozen major desert areas on earth and each one has different rainfall statistics. However, a desert is defined as a region that receives less than 10 inches (250 mm) of rainfall on average per year. Some deserts receive virtually no rainfall for years or even decades.
The monsoon winds are responsible for the rainfall experienced over a greater part of India.