On a mountain slope moist air rises and cools which process occurs before rainfall?
Before orographic rainfall moist air cools and condenses. Remember uplift and cooling in mountain rainfall.
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SubjectsGeography
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Before orographic rainfall moist air cools and condenses. Remember uplift and cooling in mountain rainfall.
View question detailsHigh temperature and strong wind help remove moisture from the surface. Therefore do not judge evaporation only by actual humidity.
View question detailsWhen temperature equals dew point the air is saturated. Further cooling can start condensation.
View question detailsWater vapour mainly comes from ground water surfaces and vegetation so it decreases with height. The source of humidity is below.
View question detailsAfternoon warming increases saturation capacity and lowers relative humidity. Compare morning and afternoon in the daily cycle.
View question detailsClouds reduce ground heat loss so the surface is less likely to reach dew point. Surface cooling is necessary for dew.
View question detailsEvaporation absorbs latent heat while condensation releases it. Link energy change with state change.
View question detailsAs temperature increases air capacity to hold water vapour increases. This is why more moisture is possible in warm air.
View question detailsVegetation adds water vapour to air through transpiration. Removing vegetation can weaken this source.
View question detailsWater vapour varies with place time and temperature. Therefore it is called a variable atmospheric component.
View question detailsHot and dry air has a high capacity to take moisture. Thus evaporation from open water can be rapid in deserts.
View question detailsDew forms on a cool surface while fog forms from suspended droplets near the ground. Condensation is the common basis in both.
View question detailsIn condensation water vapour changes from gaseous state to liquid droplets. Identifying state change is useful in exams.
View question detailsAir with high relative humidity is already close to full of moisture. Therefore evaporation of water from clothes is slow.
View question detailsFor clouds moist air often needs cooling to dew point and nuclei. Water vapour alone may not be sufficient.
View question detailsMoist sea air can become saturated near a cool surface and condense. This may form fog or dew.
View question detailsWhen saturated air cools further it loses capacity. Extra vapour can change into droplets or ice particles.
View question detailsHigh temperature low humidity and strong wind increase evaporation. Always check the factors together.
View question detailsEvaporation supplies water vapour and condensation changes it into droplets. This is a basic link of the water cycle.
View question detailsEven after moisture and condensation droplets need to grow enough for rainfall. Cloud formation does not guarantee rain.
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