Questions for Thought Essay Sample

1. Explain the logical thinking behind the wintertime look. “Clear Moon. ice soon” ? On clear. unagitated darks. objects and the Earth surface cools off by breathing infrared radiation. This chilling consequence is more rapid on clear dark than cloudy darks since there is no clouds to breathe back to the surface. Hence the phrase “clear Moon. hoar soon” . The cool surface is so assorted with air above it. which will finally chill to the dew point and H2O vapour will look on the cooled surfaces. If the temperature continues to fall in the freeze scope so the dew will stop dead and ice will organize.

2. Explain why icebergs are often surrounded by fog? Fog environment icebergs due to advection fog. This type of fog is caused by the iceberg surface temperature being colder than the damp ocean air traveling over the iceberg. As the heater air moves over the iceberg heat transportation by conductivity occurs and the air is cooled to its impregnation point finally organizing fog. 3. During a summer visit to New Orleans. you stay in an air-conditioned motel. One afternoon. you put on your dark glassess. measure outside. and within no clip your spectacless are “fogged up” . Explain what has seemingly caused this? New Orleans is a humid location and averages a dew point temperature of 72F grades and contains a batch of H2O vapour. The air-conditioned room cools your spectacless down nigh or below the outside dew point temperature. As you step outdoors into the humid. warm and moist air. H2O bluess condenses onto the spectacless organizing fog.

4. While driving from cold country ( good below stop deading ) . hoar signifiers on the windscreen of the auto. Does the hoar signifier on the interior or outside of the windscreen? How can the frost signifier when the air is so warm? When driving through the cold country the exterior of the window will chill to below stop deading. When the windscreen is exposed to warm air. it is chilled to saturation point and produces frost through deposition pg116

5. Why are truly clean ambiance and truly soil atmosphere undersirable? Dirty atmosphere have an copiousness of nuclei frequently leads to thicker fogs than clean ambiance at that place by cut downing visibleness. If fog is excessively thick so the Sun can non perforate to heat the surface. Additionally. dirty ambiance can take to acid fog with drosss such as oxides of S and N. This is harmful to people wellness. A truly clean ambiance can besides be a nuisance because the condensation procedure needs airborne atoms for H2O bluess to distill on or condensation nuclei. Without it condensation would non be and we would non hold cloud droplets.

6. Why do comparative humidnesss rarely reach 100 per centum in contaminated air? When the air is polluted. H2O bluess condenses upon hygroscopic atoms when the comparative humidness is lower than 100 % . Hence condensation can take topographic point in the ambiance even when the comparative humidness is about 75 per centum. So the haze or fog is formed before the comparative humidness has opportunity to of all time make 100 % . Pg118

7. Why are advection fogs rare over tropical H2O? The surface of tropical H2O is non sufficiently cooler than the air above the H2O hence advection fog is rare pg120

8. A January snowfall covers cardinal Arkansas with 5 inches of snow. The undermentioned twenty-four hours. a south air current brings heavy fog to this part. Explain what has seemingly happened. The 5 inches of snow cooled the surface in cardinal Arkansas. As the heater moist south air current moves over the progressively colder surface. The air is cool to its impregnation point and fog is formed by advection fog pg121

9. If all fog droplets bit by bit settle earthward. explicate how fog can last ( without vanishing ) for many yearss at a clip. If the fog is excessively thick so the sunshine is blocked and the fog may non disperse. This is common during the twenty-four hours in the cardinal vale of California. where a strong inversion besides slows the dissipation by maintaining the warm air above the fog. At dark. radiation chilling take consequence to chill the air temperature and fog signifiers once more. This procedure can last for yearss and even hebdomads. Pg120

10. Near the shore of an highly big lake. explicate why steam fog is more likely to organize during the fall and advection fog in early spring? During fall in the Northern hemisphere it is safe to state the air is likely to be cold while big organic structure of H2O such as lake are slow to breathe their heat off. When the cold air moves over the warmer H2O steam fog is produced. In early spring. if there is significantly cooler difference between the cold surface and the air above the cold surface so the warm air is chilled and advection fog is created. Pg120-122

11. The air temperature during the dark cools to the dew point in a deep bed. bring forthing fog. Before the fog formed. the air temperature cooled each hr about 2 C. After the fog. the air temperature cooled by merely 0. 5 C each hr. Give two grounds why the air cooled more easy after the fog formed? During the dark the air is cooled more easy because the fog traps the infrared energy that is emitted from the Earth and secondly. latent heat is released as fog is formed. pg 124

12. On a winter dark. the air temperature cooled to the dew point and fog formed. Before the formation of fog. the dew point remained about changeless. After the fog formed. the dew point began to diminish. Explain why? Fog is made of bantam liquid droplet that forms near the land and Dewpoint is the temperature which the air must be cooled for impregnation to happen. Once the fog stops organizing the sum of H2O vapour will get down to diminish which will besides diminish dewpoint.

13. Why can you see your breath on a cold forenoon? Does the air temperature have to be below stop deading for this to happen? Moist air from your oral cavity meets the cold air outside and mixes with it. The mixture becomes saturated and a bantam cloud is formed with exhaled breath. . The air temperature does non hold to be below stop deading for this to happen. merely near to impregnation

14. Explain why altocumulus clouds might be observed at 6400 ( 21. 000 foot ) above the surface in Mexico City. Mexico. but ne’er at that altitude above Fairbanks. Alaska? Large temperature alterations affect at different locations affect which clouds are observed. In tropical part. the air temperature is low plenty to stop dead all liquid above 6000M nevertheless. further up north the same temperature may be at a lower height pg 127

15. The sky is cloud-covered and it is raining. Explain how you could state if the cloud above you is a nimbostratus or a thundercloud? Pg 129/131 There are several hints that could be sought: ( 1 ) Large raindrops would bespeak thundercloud ; smaller beads. nimbostratus. ( 2 ) Intense. but variable rainfall would connote thundercloud ; light or moderate. but steady rainfall. nimbostratus. ( 3 ) Strong. switching surface air currents would connote thundercloud ; light steady surface air currents or composure would bespeak nimbostratus. ( 4 ) A short period of rainfall would prefer thundercloud ; a relentless rainfall would prefer nimbostratus. ( 5 ) Any attach toing lightning. boom or hail would decidedly connote thundercloud

16. Suppose it is raining lightly from a deck of nimbostratus clouds. Beneath the clouds are little. ragged. puffy clouds that are traveling quickly with the air current. What would you name these clouds? How did they likely organize? Stratus clouds are ragged looking clouds that are beneath the deck of nimbostratus. They are normally form when a midst fog lifts. Pg 130

17. You are sitting inside your house on a cheery afternoon. The sunglassess are drawn and you look out the window and notice the Sun disappears for about 10 seconds. The surrogate visible radiation and dark period stopping points for about 30 proceedingss. Are the clouds go throughing in forepart of the Sun cirrocumulus. altocumulus. stratocumulus or cumulus? Give sensible account for your reply? Since the Sun is vanishing quickly at 10 seconds intervals it is safe to presume the cloud is from the low group household of clouds. Cirrocumulus and altocumulus belong to the high and in-between group severally. Stratocumulus pg 130-131 The higher the cloud. the slower it appears to travel. If the Sun disappears for about 10 seconds to re-emerge. so the cloud is surely low. That would except the cirrocumulus and altocumulus that are both high clouds. the former made of ice crystal. If it was a stratocumulus. it would be a changeless head covering since the stratus is a layer ensuing from an inversion.

That leaves the cumulus that is the nice puffy cauliflower-like cloud that. if low plenty. could look to travel fast. disrupting the Sun on and away. as seen throguh the sunglassess of a window.

Exercises ;
1. The information in table 5. 6 below represents the dew point temperature and expected minimal temperature near the land for assorted clear winter forenoon in a southeasterly metropolis. Online 2. If a ceiling balloon rises at 120m ( about 400ft ) each minute. what is the ceiling of an cloud-covered deck of stratus clouds 1500m ( about 5000ft ) midst if the balloon disappears into the clouds in 5 proceedingss? 2000 foot

he ceiling is defined as the base of a cloud deck. If the balloon rises 400 pess every minute and it takes 5 proceedingss to make the cloud deck. so 400ft/min tens 5 min = 2000 pess. If I am understanding the inquiry decently it is immaterial that the cloud deck is 5000 pess thick