Atmospheric Moisture

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Atmospheric moisture is the water present in the air in three forms: gaseous, liquid, and solid. It makes up only 0 to 4% of the atmosphere, but it is the most important constituent for weather and cl…

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The hydrologic cycle is the continuous exchange of water between the oceans, atmosphere, and continents through evaporation, transpiration, condensation, and precipitation. Sunlight provides the energ…

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Evaporation changes water from liquid to vapour and adds moisture to the atmosphere. It is important because about 4,00,000 cubic km of water evaporates each year, mainly from oceans, rivers, lakes, i…

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Evaporation is the process by which water is transformed from liquid to vapour or gas. Approximately 600 calories of energy are required to convert one gram of water into water vapour without any chan…

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The rate of evaporation is affected by temperature, dryness of air, clouds, size of the water area, and movement of air. Higher temperature, drier air, clear sky, larger water surface, and stronger ai…

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Evaporation is higher in dry season because dry air can absorb and retain more water vapour than wet air. Clouds also reduce evaporation by blocking incoming solar radiation, so evaporation becomes lo…

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Humidity is the general term for the amount of water vapour present in the air. It is measured in grams per cubic metre, and at a given temperature the air can hold only a limited amount of water vapo…

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Absolute humidity is the weight of the actual amount of water vapour present in a unit volume of air. It is usually expressed in grams per cubic metre. It has no relation with temperature and remains …