What is Atmosphere?
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
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A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...