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Final
Final04
33
Geology
Undergraduate 4
12/11/2013

Additional Geology Flashcards

 


 

Cards

Term
What is desertification?
Definition
The growth of new desert in areas where drought prevents regrowth of vegetation
Term
Longshore drift
Definition
the gradual migration of sand or gravel from waves carrying sediment
Term
How do hurricanes form
Definition
Warm sea water over 77 degrees, sub tropic zones
Term
Safier Simpson scale
Definition
divides hurricanes into 5 windspeeds
Term
Hurricane tracks
Definition
path of a hurricane
Term
Predicting hurricanes
Definition
Satellites, Aircraft's collecting data
Term
Wetlands
Definition
Natural barrriers against hurricanes
Term
How are Nor'easters different from hurricanes?
Definition
no eye, moves in a north direction, counter clockwise rotation, cold core systems that don't lose energy with height
Term
Hazards associated with hurricanes Surge
Definition
flooding
Term
How do thunderstorms form?
Definition
when warm air rises into cold, causing condesation/ rainfall
Term
Fujita tornado scale
Definition
wind measurements,and record of damages
Term
What is El Niño?
Definition
Warm ocean temp coming from the pacific ocean
Term
Sea cliff erosion
Definition
caves, arches, and stacks
Term
Wave energy
Definition
the mass of moving water
Term
What is the Milankovitch cycle?
Definition
cycle of sun's engery calculated from variations in earth orbit around the sun, measured in tens of thousands of years
Term
Why are glaciers good indicators of climate change?
Definition
they trap Co2 and other gasses
Term
What are the various components of the climate system?
Definition
radiation, conduction, convection
Term
Topography and fire spreading
Definition
fires spread faster in canyons, wind direction can effect the strength of fires. Fires spread fast up-slope, slower down slope.
Term
Comets
Definition
A mass of ice and some rock traveling at high velocity in the gravitational field of the sun, but traveling outside our system before going through it
Term
Asteroids
Definition
a Clunk of rock orbiting the sun
Term
K-T Boundary Extinctions
Definition
65 million years, between the Cretaceous and tertiary time period
Term
ladder fuels and crown fires
Definition
Crown: fire at the top/top of tree's canopy
Ladder:fire at the bottom, brushes and branches
Term
Fuel and fuel variables
Definition
Brushes, trees, homes, burnable material
Term
Is weather a good indicator of climate change? Why or why not?
Definition
Yes
Term
Sea walls and groins
Definition
man made concrete structures to prevent coastal erosion or beach erosion
Term
Tidal flats
Definition
idal flats are intertidal, non-vegetated, soft sediment habitats, found between mean high-water and mean low-water spring tide datums
Term
Spring tides
Definition
the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides — both commonly called spring tides
Term
Neap Tide
Definition
the solar tide partially cancels out the lunar tide and produces moderate tides known as neap tide
Term
How does the ocean influence climate?
Definition
ocean circulates warm and cool water, disruption due to melting sea ice and glacier could slow or stop...could lead to cooling of the northern hemisphere
Term
What is the greenhouse effect?
Definition
Earths atmosphere traps heat/ gas Co2 and methane, prevents it from escaping
Term
Rip currents
Definition
a short lives surface current, carries water that had piled on the beach back into the sea.
Term
Barrier island evolution
Definition
near shore coastal parallel island made by a build up of sand, caused by wave action, and wind blown sand dunes.
Term
Risks of impacts
Definition
%10 or less
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