Clouds????

Question

ok if the earth moves round and round...

y do the clouds move? do they even move at all?? y?

Answer 1

The Origin of Wind

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http://www.srh.noaa.gov/jetstream/synopt...

Wind is simply the air in motion. Usually when we are talking about the wind it is the horizontal motion we are concerned about. If you hear a forecast of west winds of 10 to 20 mph that means the horizontal winds will be 10 to 20 mph FROM the west.

Although we cannot actually see the air moving we can measure its motion by the force that it applies on objects. For example, on a windy day leaves rustling or trees swaying indicate that the wind is blowing. Officially, a wind vane measures the wind direction and an anemometer measures the wind speed.

The vertical component of the wind is typically very small (except in thunderstorm updrafts) compared to the horizontal component, but is very important for determining the day to day weather. Rising air will cool, often to saturation, and can lead to clouds and precipitation. Sinking air warms causing evaporation of clouds and thus fair weather.

You have probably seen a surface map marked with H's and L's which indicate high and low pressure centers. Surrounding these "highs" and "lows" are lines called isobars. "Iso" means "equal" and a "bar" is a unit of pressure so an isobar means equal pressure. We connect these areas or equal pressure with a line. Everywhere along each line is constant pressure. The closer the isobars are packed together the stronger the pressure gradient is.

Pressure gradient is the difference in pressure between high and low pressure areas. Wind speed is directly proportional to the pressure gradient. This means the strongest winds are in the areas where the pressure gradient is the greatest.

Clouds

READ MORE

http://www.srh.noaa.gov/jetstream/synopt...

Clouds form when air is cooled to its dewpoint or the temperature, if the air is cooled, it reaches saturation. Air can reach saturation in a number of ways. The most common way is through lifting.

As a bubble or parcel of air rises it moves into an area of lower pressure (pressure decreases with height). As this occurs the parcel expands. This requires energy, or work, which takes heat away from the parcel. So as air rises it cools. This is called an adiabatic process.

The rate at which the parcel cools with increasing elevation is called the "lapse rate". The lapse rate of unsaturated air (air with relative humidity <100%) is 5.4°F per 1000 feet (9.8°C per kilometer). This is called the dry lapse rate. This means for each 1000 feet increase in elevation, the air temperature will decrease 5.4°F.

Since cold air can hold less water vapor than warm air, some of the vapor will condense onto tiny clay and salt particles called condensation nuclei. The reverse is also true. As a parcel of air sinks it encounters increasing pressure so it is squeezed inward.

This adds heat to the parcel so it warms as it sinks. Warm air can hold more water vapor than cold air, so clouds tend to evaporate as air sinks.

Clouds & Wind Fall under the subject of Synoptic Meteorology. To learn more on this subject See this Link

http://www.srh.noaa.gov/jetstream/synopt...

Answer 2

There are two major reasons that clouds move.  The first is the overall movement of warm air at the equator flowing to the polar regions where the warm air grows colder and sinks.  The second reason is caused by the rotation of the earth.  Suppose you stood at the north pole and fired a gun at New York City.  As the bullet flew south, the earth would continue to rotate and New York City would move toward the west.  Someone standing on the surface of the earth would see the bullet as curving to the East.  This eastward motion caused by the rotation of the earth is called the coriolos force.

Check out the following link.

http://en.wikipedia.org/wiki/Coriolis_ef...

Answer 3

Clouds themselves do not move;they are carried away by the winds blowing at the cloud level.

Answer 4

wind

oh, and sunlight causes them to break up and evaporate

Answer 5

the wind moves the clouds and the wind came from oxygen and we inhale oxygen and exhale carbon dioxide and plants need carbon dioxide and they excrete oxygen so its kinda a cycle and its all wind or the air you breathe

Answer 6

Clouds... Well, they rotate. Just like the Earth.(FYI, SO do stars)