Geology

Front 1

glaciers move downhill via

Back 1

basal slip & plastic flow

Front 2

breaking off of large blocks of rock via freeze-thaw action

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plucking

Front 3

glacial sediment poorly sorted & unstratified

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till

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brings warmer temperature & increased precipitation

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el nino

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rising of ground level after a glacier melts/retreats

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isostatic rebound

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heat energy from the sun

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insolation

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type of dunes that are found in coastal environments

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parabolic

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atmosphere convection cells that move heat from equator to 30 degree latitude

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hadley cells

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trap insolation & increase temperature

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greenhouse gases

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transports heat to higher latitude in the oceans like a conveyer belt

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thermohaline circulation

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draw-down of CO2 from atmosphere into the ocean by phytoplankton photosynethesizing

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the biological pump

Front 12

preserve ancient levels of CO2 in the atmosphere

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ice cores

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large, solid bodies of rock found in deserts that form when the surrounding rock is eroded

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inselbergs

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constantly eroding away fine-grained sediment in the desert, leaving coarse-grained material

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deflation

Front 15

average surface conditions over a long period of time

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climate

Front 16

demonstrates that burning fossil fuels is the source of atmospheric carbon buildup

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the suess effect

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measure of reflectivity

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albedo

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many deserts form a long___degrees latitude because those areas experience high ____resulting in little rain

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30, air pressure

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determines continental position, creates mountains & rain shadows, and opens oceanic gateways

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lithosphere

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primary type of weathering in the desert

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physical

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dunes associated with vegetation

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parabolic

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point in earths orbit closest to sun

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perihelion

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point in earths orbit farthest form sun

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aphelion

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have long, sinuous crests that run perpendicular to wind direction

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transverse dunes

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glacial valleys are typically___shaped while river valleys are ___shaped

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U,V

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burning fossil fuels increases isotope

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carbon 12

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section of glacier where more ice melts

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zone of ablation

Front 28

influence climate

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all of the "spheres" atmo, hydro, litho, cyro