1 . a. What type of clouds are characterized as unstable air and what type of we
ID: 114630 • Letter: 1
Question
1.
a. What type of clouds are characterized as unstable air and what type of weather is associated with this type of atmospheric condition. Please focus on the following rates in your answers: environmental lapse rates, and dry/wet lapse rates.
b. What type of clouds are characterized as stable air and what type of weather are associated with these types of atmospheric conditions. Please focus on the following rates in your answers: environmental lapse rates, and dry/wet lapse rates
2.
a. What direction do all atmospheric lifting mechanisms impact or shape air movements (i.e., which direction side to side or vertical)?
b. Please detail how atmospheric lifting mechanisms promote or start the cloud development and precipitation process? (Make sure to reference adiabatic processes)
c. Reference the key ingredients needed to produce high levels of precipitation at any location around the world?
Explanation / Answer
1.A Clouds that are formed due to the unstable air are usually called as the Cumulus clouds. These are the big lumps of clouds. These clouds are having a flat base and curved top edges.
For an unstable air the the tempertaure at which an air parcel is will be greater than that of the temperature of the air mass that is surrounding the air parcel. As a result the air parcel's density will be less and this will make it to float up.
This has a lesser environmental lapse rate and as a result they from a very unstable atmosphere. In this the dry lapse rate is higher than the moist or wet lapse rate.
B. Stable air results in the formation of the Stratus Clouds. These clouds have a stabel environmental lapse rate and they create a stable atmosphere.
The environmental lapse rate is very much lower than the moist rate and this will result in the rapid cooling of the air parcel.
This cooling will make the air parcel to become stable and they dont go up. Here the mosit lapse rate is less when compared to the dry lapse rate.
2. A. Air moves vertically in the stable environment and when there is any obstacle like a mountain it gos above it and once the clouds gets cooled the come down on the other side of the mountain. When the air is converging the total air is lifet vertically up.
B. CLouds are formed when the ground gets heated by the sun and the pressure decrases and this will result in the lifting of the air parcels along with water vapour. There dependin on the atmosphere they may form a stable or unstable clouds.
The volume increases with the increase in height. The unsaturated air will be cooled at the dry adiabetic lapse rate as the height increases. Then they form cumulus clouds. The temperature is trasfered to the environment and undergoes adiabetic process
C. The best suited places or the high level os precipitation are in orographic convergences. Here the evapotranspiration is high. Example margins of Amazonia
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