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31 - Uplift due to physical barrier(mountain Frontal...

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Chapter 6 Weather Systems Ocean Currents Flow fast and move large volumes of water They all affect the regional climate Colder currents – “mainly” on west coasts Warm currents – “mainly” on east coasts Gulf Stream – transports heat from the tropical regions toward poles and hooks up with the North Atlantic Drift current and moderates the climate in Europe. Genetic types of precipitation: Three factors necessary for precipitation to develop: 1. Moist Air & Energy – 2. Condensation nuclei for which water vapor can condense on 3. Uplift mechanism that can force the air to rise and cool via adiabatic process to the dew point temperature. Convectional precipitation Uplift due to intense surface heating Orographic precipitation
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Unformatted text preview: Uplift due to physical barrier (mountain) Frontal precipitation Uplift due to meeting of air masses (fronts) Convergence Four Families of clouds arranged by height low, middle, high, vertical clouds Stratus – “layer” Cumulus – “pile” Cirrus – “hair” Air Masses Air Mass- extremely large body of air whose properties of temperature and humidity are fairly similar in any horizontal direction at any given altitude. Air masses are classified according to temperature and moisture properties of their source regions (SR) Based on moisture of SR Continental (dry) - land Maritime (moist) - oceans Based on temperature of SR Tropical (warm) Polar (cold) Arctic (extremely cold)...
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