Exam 2 Questions

Hazard turn into a catastrophe

increase population density in areas vulnerable to hazards

hurricane katrina caused

all of the above

coastal hazards can be compounded by

rising sea level, climate change, etc

fine particles moving through water

suspended load

floodplains

Broad areas of uniform topography carved from sediment or rocks

p waves

fastest waves produced during earthquake

base level

lowest evel to which a river may erode

stream channel is of constant width and depth

increased velocity

capacity

total sediment load

what can impact flooding risks

all

catastrophe

natural hazard event produces significant loss of life and financial damage

stormwater management structures

prevent erosion downstream

moment magnitude

strain energy released

as waves enter shallow water

wavelength decreases

wave height increases

Current flowing parallel to and just offshore of a beach is responsible for

transporting sediment downshore

river damming contributes to

coastal erosion

jetties drawback

trap sand forcing ocean around beach where it erodes

ground rupture

occurs during earthquake at focus below surface

competence

max particle size a river can transport

cause of tides

moon and sun gravity

wavelength

distance between crests of two waves

longshore currents movement

parallel to direction of coast

espace rip current

swim parallel to shore

why have hurricanes increased

higher sea surface temperatures

watershed

area that drains water to common point

earthquakes more damaging to buildings

surface waves

subsidence

withdrawal of fluids

Hydrostatic pressure

can provide partial support for overlying rock mass and soils

distributary

branch of a river that doesn’t return to main stream

tributary

a river or stream flowing into a larger river or lake