Why Does It Rain So Much
A storm (of the common Germanic sturmaz that comes to mean "noise" or "tumult") is
a phenomenon characterized by the coexistence of two or more close air masses of different temperatures. The contrast associated with the physical effects involved leads to an instability characterized by rain, wind, lightning, thunder and occasional hail and other weather phenomena.
Although scientifically defined as storm clouds that can produce an audible thunder, storms are also known as generally violent atmospheric phenomena on the surface of the earth are associated with rain, ice, hail, electricity, snow or high winds , which can carry suspended particles such as dust storm or even small objects or living things.
Storms are created when a low pressure center develops with a high pressure system around it. This combination of opposing forces can create winds and result in the formation of storm clouds like cumulonimbus.
The thermal contrast and other properties of moist air masses give rise to the development of strong upward and downward movements (convection) producing a series of characteristic effects, such as heavy rain and surface winds and intense electric shock. This electrical activity is reflected when it reaches the breakdown voltage of air, when the beam is generated that gives rise to the phenomena of lightning and thunder. The appearance of lightning depends on such factors as the degree of atmospheric ionization, besides the type and concentration of precipitation.
The storms derive their energy from the release of latent heat that is produced in the condensation of water vapor in the rising parcel of the storm.
While in the U.S. the term "storm" refers strictly and in the meteorological only severe storms with surface winds at least 80 km / h, the term "storm" is much less restrictive. Storms produce clouds of vertical development Cumulonimbus - Cumulus, which can reach the tropopause around 10 km altitude. The business cycle of a typical storm has an initial phase of training, intermediate and final maturity of decay that lasts about an hour or two.
Generally a convective storm cell has a horizontal span of about ten square kilometers. However, often occur simultaneously or nearly simultaneously several convective cells that trigger heavy rainfall over a longer period of time. Sometimes when wind conditions are suitable, a storm can evolve to the state of causing a series of supercell updrafts and downdrafts and heavy rainfall for several hours.
The storms may contain vortices of air, ie wind swirling around a center (like hurricanes). Containing these storms vortexes (supercells) are very intensive and is likely characteristic that can produce waterspouts and tornadoes, are often rooted in very tight areas where the wind does not have enough escape.
A tropical storm refers to a larger storm in subtropical latitudes alternating upstream and downstream regions and potentially capable of evolving to hurricane status.
A dust storm is a meteorological phenomenon common in the Sahara Desert in North Africa, on the Great Plains of North America, in Arabia, the Gobi Desert of Mongolia, in the Taklamakan Desert in northwest China and other regions arid and semiarid regions.
Severe dust storms can reduce visibility to zero, making the field trips, and take flying the topsoil, depositing it elsewhere. Drought and, of course, wind contribute to the emergence of dust storms, which impoverish agriculture and livestock. The collected dust storms can travel thousands of miles: the Sahara dust storms influence plankton growth in the western Atlantic Ocean, according to some scientists, are an important source of scarce minerals for plants of the Amazon rainforest. Dust storms can often be seen in photographs taken from satellites. If airborne dust is swept away by strong currents of air to other places and it rains, it rains mud is said, because everything is filled with droplets of dried mud, and just a messy eater.
by: Art
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