GEOL109.3

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adiabatic heating/cooling

results from change in pressurenot by addition/removal of heat energy
cold air (2)
- most dense
- holds less moisture than warm air
lapse rate
- rate that the rising air mass cools
- depends on dryness/wetness
wind is named by

where they're coming from
rotating Earth's wind cells
- Hadley cell
- Ferrel cell
- Polar cell
intertropical convergent zone (ITCZ)

convergence between NE and SE trade winds
hourse latitudes

divergence between NE trades and westerlies
polar front
- polar jet strem is located
- convergence between westerlies and polar easterlies
- low pressure
tropopause

troposphere and stratosphere
polar jet develops at

40 degree altitude
difference between climate and weather
- climate: the average of years of data. world wide
- weather: day by day. local
5 subsystems that affect the weather
- lithosphere: human activity
- cryosphere: snow and glacier ice
- hydrosphere: heat, evaporation
- atmosphere: heat
- biosphere: CO2
geological records of climate comes from

fossil evidence
oxygen isotope
- peaks: low ice volume, interglacial, warm temperature
- valleys: high ice volume, glacial, cold temperature
ice core
- higher value: warmer temperature
- lower value: colder temperature
why climate change (external forcing) (2)
- sunspot cycle: 11 year intervals
- orbital/astronomical factors: wobble and tilt
why climates change (internal forcing) (3)
- atmospheric filtering: how much radiation reaches the Earth
- volcanic activity
- changes in ocean circulation
Medieval Climate Anomaly
- regional (Europe)
- 900-1300 AD
- peak in solar activity
The Little Ice Age

1300-1850
The warm middle cretaceous
- no glaciers
- higher sea level
- higher CO2 level
epicontinental seaway

splitting the continent in half

Author

nanananako

83335

Card Set

GEOL109.3

Description

GEOL 109 exam 3

Updated

2011-05-03T00:20:09Z

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