The Climate Investigación

Páginas: 8 (1766 palabras) Publicado: 11 de diciembre de 2012
CLIMATE
CLIMATE
Climate encompasses the statistics of temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological elemental measurements in a given region over long periods. Climate can be contrasted to weather, which is the present condition of these elements and their variations over shorter periods.
A region's climate is generated bythe climate system, which has five components: atmosphere, hydrosphere, cryosphere, land surface, and biosphere.

Factors that Influence Weather
There are many factor that influence weather, many of which we cannot see.
The Water Cycle As the sun warms the surface of the Earth, water rises in the form of water vapor from lakes, rivers, oceans, plants, the ground, and other sources. Thisprocess is called evaporation
Water vapor provides the moisture that forms clouds; it eventually returns to Earth in the form of precipitation, and the cycle continues.
Air Masses
When air hovers for a while over a surface area with uniform humidity and temperature, it takes on the characteristics of the area below. For example, an air mass over the tropical Atlantic Ocean would become warmand humid; an air mass over the winter snow and ice of northern Canada would become cold and dry. These massive volumes of air often cover thousands of miles and reach to the stratosphere. Overtime, mid-latitude cyclonic storms and global wind patterns move them to locations far from their source regions.
What happens when 2 air masses meet? The cold air pushes the hot air upwards, when going upthe temperature drops and the air can't hold as much water when it is warm, so the cold water molecules condense and form clouds.
Jet Stream
A jet stream is the name given to the area of air above where two air masses of different temperature converge e.g. a cold front meeting a warm front. The greater the temperature difference between the air masses, the greater the air pressure difference,and the faster the wind blows in the jet stream. This river of air has wind speeds which often exceed 100 mph, and sometimes over 200 mph. Jet streams more commonly form in the winter, when there is a greater difference between the temperature of the cold continental air masses and warm oceanic air masses.
This meandering current of high-speed wind, a jet stream is usually found around five toten miles above Earth’s surface.
It generally flows west to east, often in a non-continuous wavy fashion, with cold, Equatorward dips and warm, Poleward bulges.
Weather Fronts
A cold weather front is defined as the changeover region where a cold air mass is replacing a warmer air mass. Cold weather fronts usually move from northwest to southeast. The air behind a cold front is colder anddrier than the air in front. When a cold front passes through, temperatures can drop more than 15 degrees within an hour.
On a weather forecast map, a cold front is represented by a solid line with blue triangles along the front pointing towards the warmer air and in the direction of movement.
There is usually an obvious temperature change from one side of a cold front to the other. It has beenknown that temperatures east of a cold front could be approximately 55 degrees Fahrenheit while a short distance behind the cold front, the temperature can go down to 38 degrees. An abrupt temperature change over a short distance is a good indicator that a front is located somewhere in between.
A warm weather front is defined as the changeover region where a warm air mass is replacing a cold airmass. Warm fronts usually move from southwest to northeast and the air behind a warm front is warmer and moister than the air ahead of it. When a warm front passes, the air becomes noticeably warmer and more humid than it was before.
On a weather forecast map, a warm front is represented by a solid line with red semicircles pointing towards the colder air and in the direction of movement....
Leer documento completo

Regístrate para leer el documento completo.

Estos documentos también te pueden resultar útiles

  • MÉTODOS DE INVESTIGACION "THE FLIGHT"
  • La Fundaci N No Lucrativa The Climat Project Spain
  • The global issue of climate change
  • A Little About Climate Type Called "The Mist"
  • The climate change
  • Investigacion Mercadotecnia Sobre The Cocacola Compani
  • metodologia de la investigacion cambio climatico
  • Investigacion sobre cambio climatico

Conviértase en miembro formal de Buenas Tareas

INSCRÍBETE - ES GRATIS