What do the lowercase letters K and W indicate about an air mass list the general weather conditions associated with K and W air masses?

What do the lowercase letters K and W indicate about an air mass list the general weather conditions associated with K and W air masses?

A lowercase letter describes the relationship between the air mass and the earth: k signifies that the air mass is colder than the ground below it, while w describes an air mass that is warmer than the ground below it.

Which of the following is not a good air mass source region?

Cards In This Set

Front Back
The continental U.S is not an air mass source region. True
The boundary of an air mass is a region of especially active weather. True
When an air mass is warmer than the surface over which it moves, an inversion is likely. True

Which of the following criteria is not a characteristic of a good air mass source region?

Which of the following criteria is NOT a characteristic of a good source region? The area must frequently experience cyclones. Which of the following air masses probably has the lowest water vapor content? Which of these is common to both cold and warm fronts?

On what basis is an air mass classified?

Air masses are classified according to the temperature and moisture characteristics of their source regions. Based on temperature: tropical (warm), polar (cold), arctic (extremely cold).

Which one of the following air mass types does not affect the mainland United States?

Equatorial (E): Equatorial air is hot and originates along 0 degrees (the equator). Since the equator is mostly devoid of land areas, there is no such thing as continental equatorial air—only mE air exists. It rarely affects the U.S.

What air masses rarely affects North America?

Equatorial Air Masses Equatorial air originates along the equator at 0 degrees and is extremely hot. There is no continental equatorial air since the equator is mostly devoid of land areas, and these masses rarely affect the US.

How are air masses classified based on their characteristics?

Classification of Air Masses Air masses are classified according to the temperature and moisture characteristics of their source regions. Bases on moisture content: continental (dry) and maritime (moist) Based on temperature: tropical (warm), polar (cold), arctic (extremely cold). Naming convention for air masses: A small letter (c,

What type of air mass is maritime polar?

Maritime Polar (mP) Air Masses. ‰Maritime polar air masses form over upper latitude oceanic regions and are cool and moist. ‰mP air masses form over high-latitude ocean as cP air masses move out from the interior of continents. (I.e., cP Æ mP). ‰Oceans add heat and moisture into the dry and cold cP air masses.

What type of air masses form over Oceanic regions?

‰Maritime polar air masses form over upper latitude oceanic regions and are cool and moist. ‰mP air masses form over high-latitude ocean as cP air masses move out from the interior of continents. (I.e., cP Æ mP). ‰Oceans add heat and moisture into the dry and cold cP air masses.

What happens when an air mass enters a highland climate?

When air masses enter a highland climate they modify due to these elevation changes. mP and mT air is dried (on lee-ward side) due to orographic descent. cP air has difficulty entering a highland climate due to the high density of the cP air. Cold dense air has difficulty moving over elevated terrain.