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Featureless, gray overcast sky; sun not visible; drizzle or rain |
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Base at 1 km, top at 6 km; heavy showers |
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Small, translucent puffs that appear to be smaller than one’s outstretched thumb |
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Blobs at 1.5 km altitude with flat bottoms and flat tops |
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a _________ cloud is layer-like in appearance, while a ___________ cloud is one that is vertically developed |
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list of lifting mechanisms for cloud formation: |
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simple convection, topographic lifting, surface convergence, frontal lifting |
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During a sunny afternoon, the ground heats up and heats the air next to the ground. This causes the environmental lapse rate in the air near the ground to go ______, which makes the atmosphere ______ stable than in the morning, when the ground was cooler. |
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the average tropospheric lapse rate is about ________. From comparing this to the dry and moist adiabatic lapse rates, we find that the troposphere is, on average, ________ ________ |
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6.5 C/km; conditionally unstable |
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When the atmosphere is absolutely unstable, an unsaturated air parcel that is rising will lose temperature at a rate that is ____ ____ the rate at which the temperature in the environment is decreasing with increasing altitude. If the air parcel reaches t |
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Once an air parcel has risen above the lifting condensation level, the temperature inside the parcel decreases at the _____ ________ _____ rate. This means the rising air parcel will be losing temperature at a rate that is ____ ____ the rate it would lose |
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moist adiabatic lapse; less than |
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If dew forms in Los Angeles one night and frost forms in Riverside the same night, we can conclude that the dew point temperature in Los Angeles was _______ ____ the dew point temperature in Riverside and the minimum temperature in Los Angeles was _____ _ |
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greater than; greater than |
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fog forms when warm air from over the Pacific Ocean moves over the cold Santa Monica Bay waters |
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