Atmosphere's Planetary Circulation

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Chapter Nine in our textbook

  1. 1

    Surface westerlies meet and override surface westerlies here

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    "Winds aloft" refers to:

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    La Nina can and commonly does follow El Nino

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    Cold, nutrient-rich waters come to the surface as a result of prevailing winds blowing across the ocean's surface:

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    The most prominent jet stream is located above the polar front in the upper troposphere between the midlatitude tropopause and the polar tropopause.

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    Monsoon seasons are marked by:

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    A discontinous low-pressure belt that results in prevailing thunderstorms. Its average location corresponds to where Earth's temperature is the highest. No seasonal changes happen here.

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    A seesaw variation in air pressure across the tropical Indian and Pacific Oceans

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    Narrow corridor of very strong winds:

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    During El Nino

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    Subtropical gyres

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    The polar front is a narrow transition zone between relatively cold and relatively warm air masses

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    Series of long wavelength troughs and ridges that characterize the planetary scale westerlies as they encircle the globe are known as:

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    Hadley Cell:

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    El Nino is a period of of stronger trade winds and well-below average SST over the central and eastern tropical Pacific.

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    Air pressure drops more rapidly in warm air that cold air.

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    Attributes of subtropical anticyclones:

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    What can be found under the eastern flank of subtropical cyclones?

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    On the far western flank of subrtopical anticyclones one could find:

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    Doldrums:

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    The midlatitude westerlies:

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    Polar gyres are:

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    La Nina features very strong trade winds and lower than usual SST.

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    Attributes of trade winds:

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    What is the system that is used to alert watches, warnings, and advisories for El Nino and La Nina ?

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    The thermocline for La Nina is more exaggerated that that of El Nino and directions are reversed.a

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    Polar highs are well developed:

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    El Nino is typically more drastic than La Nina and characterized by warner surface waters.

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    A subtropical cyclone:

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