Gujarat BoardEnglish MediumSTD 11 ArtsGeographyWinds3 Marks
Question
Explain about air mass.
✓
Answer
The large amount of air that is symmetrical in temperature and humidity is known as "air mass".
At different heights, the temperature and humidity are almost the same in the direction parallel to the horizon.
Ray air becomes aerated when it receives surface heat or cold and moisture as the air stays still over a large area for almost a plane.
Characteristics of Air mass:
An aggregate of gases can spread up to hundreds of km.
Often has an area as large as a large room.
The air mass moves in the direction of the pressure gradient in the air towards the other region.
The snow-covered plains of Cannes, the cold region of Siberia in winter, the vast oceans of the tropics, and the hot deserts of summer are the source regions of the air mass.
These source regions form hot and cold gas aggregates due to excessive heat or cold for many months.
It is mainly divided into two parts.
$(1)$ Tropical Air Masses $(2)$ Polar Air Masses.
Weather events are constantly occurring in the gaseous masses that form in different parts of the earth's surface.
It determines the weather and climate of the region.
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