Question

what is the body of air with generally uniform temperature and humidity that originates over the ocean

Answer 1

Answer:

⭐An air mass is a large body of air with generally uniform temperature and humidity. The area over which an air mass originates is what provides its characteristics. The longer the air mass stays over its source region, the more likely it will acquire the properties of the surface below. As such, air masses are associated with high pressure systems.

⭐There are two broad overarching divisions of air masses based upon the moisture content. Continental air masses, designated by the lowercase letter 'c', originate over continents are therefore dry air masses. Maritime air masses, designated by the letter 'm', originate over the oceans and are therefore moist air masses.

⭐Each of the two divisions are then divided based upon the temperature content of the surface over which they originate.

⭐Arctic air masses, designated by the letter 'A', are very cold as they originate over the Arctic or Antarctic regions.

⭐Polar air masses, designated by the letter 'P', are not as cold as Arctic air masses as they originate over the higher latitudes of both land and sea.

Polar air masses, designated by the letter 'P', are not as cold as Arctic air masses as they originate over the higher latitudes of both land and sea.Tropical air masses, designated by the letter 'T', are warm/hot as they originate over the lower latitudes of both land and sea.

Answer 2

Answer:--

⚡An air mass is a large body of air with generally uniform temperature and humidity. The area over which an air mass originates is what provides its characteristics. The longer the air mass stays over its source region, the more likely it will acquire the properties of the surface below. As such, air masses are associated with high pressure systems.

⚡There are two broad overarching divisions of air masses based upon the moisture content. Continental air masses, designated by the lowercase letter 'c', originate over continents are therefore dry air masses. Maritime air masses, designated by the letter 'm', originate over the oceans and are therefore moist air masses.

⚡Each of the two divisions are then divided based upon the temperature content of the surface over which they originate.

⚡Arctic air masses, designated by the letter 'A', are very cold as they originate over the Arctic or Antarctic regions.

Polar air masses, designated by the letter 'P', are not as cold as Arctic air masses as they originate over the higher latitudes of both land and sea.

Tropical air masses, designated by the letter 'T', are warm/hot as they originate over the lower latitudes of both land and sea.

Putting both designations together, we have, for example, a "continental arctic" air mass designated by 'cA', which source is over the poles and therefore very cold and dry. Continental polar (cP) is not as cold as the Arctic air mass but is also very dry. Maritime polar (mP) is also cold but moist due to its origination over the oceans. The desert region air masses (hot and dry) are designated by 'cT' for 'continental tropical'.

⚡As these air masses move around the earth they can begin to acquire additional attributes. For example, in winter an arctic air mass (very cold and dry air) can move over the ocean, picking up some warmth and moisture from the warmer ocean and becoming a maritime polar air mass (mP) - one that is still fairly cold but contains moisture.

⚡If that same polar air mass moves south from Canada into the southern U.S. it will pick up some of the warmth of the ground, but due to lack of moisture it remains very dry. This is called a continental polar air mass (cP).