GEOG 2000 Lecture Notes - Lecture 6: Polar Desert, Shrubland, Temperate Deciduous Forest
7 Aug 2016
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Document Summary
Weather- is an area"s short-term atmosphere conditions typically over hours or days. Factors affecting weather include temperature and precipitation by the movement of air masses. Examples of weather include temperature, pressure, moisture content, precipitation, sunshine, cloud cover, and wind direction and speed. Front the boundary between two air masses with different temperatures and densities. Warm front- is the boundary between an advancing warm air mass and the cooler one it is replacing. Because warm air is less dense than cool air an advancing warm front rises up over a mass of cool air. As the warm air mass rises it condenses into droplets in cloud at different altitudes. As the clouds thicken and lower it will release as precipitation. Cold front- is the leading edge of advancing mass of cold air. Because cold air is denser than warm air, and advancing cold front stays close to the ground and wedges underneath less dense warmer air.
