Water vapor is a common term that one probably understands as evaporated water. Essentially this is a correct assumption but this evaporated water makes up our atmosphere and is the most essential element to meteorology. The water vapor is evaporated from the earth's surface from lakes, oceans, rivers, streams, etc. In areas of large amounts of water, it is often noticed that there is a greater occurrence of water vapor. The amount of water vapor in t

he air is measured in two different methods, relative humidity and dew point. The relative humidity, RH, is a percentage which incorporates the ratio of water vapor which is included in a certain amount of air/space. It is a measure of how close air is to saturation. Air gets saturated like anything else, i.e. salt and water eventually you can't dissolve any more salt into a give amount of water. One percent relative humidity would be almost completely unsaturated, versus 100 percent saturated would be completely saturated. The es stands the saturation limit, the most water that the air could hold, and the e stands for the environmental pressure in the following formula. The formula for relative humidity is e/es x 100%. When e = es the air is completely saturated because looking back at the formula, one times one-hundred equals one-hundred percent which means the air is completely saturated. The relative humidity is dependent upon both temperature and vapor content. To increase the relative humidity it is necessary to increase vapor content and/ or cool the air. By increasing the vapor content, you are increasing the relative humidity/ saturation percentage. This is simple because your adding more thus making it more saturated. By decreasing the temperature you're simply decreasing the air's ability to saturate. Cold air can't hold as much water vapor as war air. In order to influence the relative humidity negatively it requires the inverse of the former concept. If you decrease the amount of vapor and/ or increase the temperature it decreases the relative humidity. The problem with using the relative humidity to judge the amount of water vapor is that there could technically be a situation where there is more vapor except the relative humidity is lower. This is because of the influence of temperature on the equation. If there it is a higher temperature then there is more saturation possible than lower temperature. So technically in a condition where there is the same amount of water vapor but there is two different temperatures, the higher temperature would have lower relative humidity then the colder temperate. This is a problem because there is now way to know this with looking at a thermometer.

Upslope fog happens when air is forced to rise up a slope and the air reduces its temperature to its dew point. This is why there is always fog and snow on the mountainsides. This process occurs adiabatically, which means that it occurs with out gain or loss of heat.

We plan on creating a fog chamber by influence the temperature, and relative humidity, and dew point in order to trap and force condensation. One of our goals is to be able to create fog using the five different types of fog, if possible. We will influence the fog by temperature increase, and decrease in order to force saturation. We will try to make the purest fog possible by changing the size of the jar and different amounts of water. We can also experiment with different substances dissolved in the water to see if that has an effect upon the fog.

The third aspect to forming

Some common words found in the essay are:
, Bergeron Process, Smoke Upslope, Pacific Ocean, Valley Fog, relative humidity, water vapor, cold air, warm air, condensation nuclei, amount water, advection fog, air temperature, Steam Fog, amount water vapor, relative humidity dew, humidity dew, warm air cooled, completely saturated, air completely saturated, water vapor condenses,
Approximate Word count = 2085
Approximate Pages = 8 (250 words per page double spaced)