Differentiate between low pressure and high pressure ?
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A low pressure system, or "low", is an area where the atmospheric pressure is lower than that of the area surrounding it. Lows are usually associated with high winds, warm air, and atmospheric lifting. Because of this, lows normally produce clouds, precipitation, and other bad weather such as tropical storms and cyclones.
High pressure areas are normally caused by a phenomenon called subsidence, meaning that as the air in the high cools it becomes denser and moves toward the ground. Pressure increases here because more air fills the space left from the low. Subsidence also evaporates most of the atmosphere's water vapor so high pressure systems are usually associated with clear skies and calm weather.
Hope this helps !!
A low pressure system, or "low", is an area where the atmospheric pressure is lower than that of the area surrounding it. Lows are usually associated with high winds, warm air, and atmospheric lifting. Because of this, lows normally produce clouds, precipitation, and other bad weather such as tropical storms and cyclones.
High pressure areas are normally caused by a phenomenon called subsidence, meaning that as the air in the high cools it becomes denser and moves toward the ground. Pressure increases here because more air fills the space left from the low. Subsidence also evaporates most of the atmosphere's water vapor so high pressure systems are usually associated with clear skies and calm weather.
Hope this helps !!
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Answered by
39
Hii.....The ans is...
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Low Pressure
A region in the atmosphere where air is rising is known as a low pressure. They are also called lows, depressions, or cyclones. A low pressure system is developed when the air gets hot and moist compared to the surrounding air. The expansion from the heat and the decrease in weight due to water vapor creates the air to move upwards.
High pressure
A region in the atmosphere where the air is sinking is known as high pressure. These systems are also called highs or anticyclones. Anticyclones are descending air after getting cooled in the upper atmosphere. The temperature of the gas increase as the relative humidity decreases. As a result, the water in the air mass is vaporized, and dry weather conditions are created.
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Low Pressure
A region in the atmosphere where air is rising is known as a low pressure. They are also called lows, depressions, or cyclones. A low pressure system is developed when the air gets hot and moist compared to the surrounding air. The expansion from the heat and the decrease in weight due to water vapor creates the air to move upwards.
High pressure
A region in the atmosphere where the air is sinking is known as high pressure. These systems are also called highs or anticyclones. Anticyclones are descending air after getting cooled in the upper atmosphere. The temperature of the gas increase as the relative humidity decreases. As a result, the water in the air mass is vaporized, and dry weather conditions are created.
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