Author Question: Describe the formative characteristics of advection fogs, valley fog, evaporation fog, and radiation ... (Read 67 times)

ARLKQ

  • Hero Member
  • *****
  • Posts: 571
Describe the formative characteristics of advection fogs, valley fog, evaporation fog, and radiation fog along with their usual locations.
 
  What will be an ideal response?

Question 2

Compare and contrast the normal lapse rate, environmental lapse rate, the dry adiabatic lapse rate, and the moist adiabatic lapse rate.
 
  What will be an ideal response?



ky860224

  • Sr. Member
  • ****
  • Posts: 350
Answer to Question 1

Fog is a cloud layer on the ground with visibility restricted to less than 1 km (3,300 ft). Radiation fog results when radiative cooling of the surface chills the air directly above the surface to the dew-point temperature. Advection fog occurs when air in one place migrates to another place where the conditions are right for saturation. For instance, when warm, moist air moves over a cooler ocean current. Valley fog is a type of advection fog, which results from cooler, denser air settling in low-lying areas. Similarly, upslope fog forms as moist air is lifted due to topography and, as a result, adiabatically cools. Evaporation fog forms when cold air lies over a warm water body and water molecules evaporate from the water surface into the cold, overlying air.

Answer to Question 2

The normal lapse rate is the average decrease in temperature with increasing altitude, a value of 6.4 C/1000 m (3.5 F/1000 ft). However, the actual rate can vary greatly in space and time. The environmental lapse rate (ELR) is the actual lapse rate at a particular place at a particular time. The rate at which dry (i.e. not saturated) air cools by expansion as it rises, an average value of 10 C/1000 m (5.5 F/1000 ft). The moist adiabatic rate, the rate at which a saturated air parcel cools as it rises, has an average value of 6 C/1000 m (3.3 F/1000 ft). These adiabatic rates also apply to the warming of descending air.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

For a complete list of videos, visit our video library