Studied by 7 people
what is eustatic/global sea level?
what is local sea level?
relative elevation between average sea surface coastline and coastline of land mass
what are waves?
undulations formed by wind blowing over surface of water
transfer of energy from wind to water
what type of orbit do deep water waves have?
circular
moving up and down not acc towards the coast
what type of orbit do intermediate water waves have?
elliptical
what type of orbit do shallow water waves have?
linear
what is wave refraction?
change in wave speed due to diff water depths
slows down in shallow water and bends towards coast
what is wave diffraction?
waves bend around obstacles and through narrow openings
what are the wave zones?
surf → waves breaking
swash → waves move up the beach
undertow → waves retreat
what are the types of breaks?
spilling → flat surface
plunging → deep to shallow
collapsing
surging → surge up steep beach
which wave types are constructive?
surging
spilling
collapsing
which wave types are destructive?
plunging
what are longshore currents?
SA;HKASHFAKJSLFHDKSA
occur in shallow water
have wind blowing parallel to the coastline
what are nearshore currents?
ALSJDHF;EHSLKAHSFKJASHD
what are tides
KJSHDFKAHWH
what are storm induced surges and seiches?
what is this?
sloping shore platform
what is this?
horizontal shore platform → diff geological layers
what is this?
plunging cliff
what are these?
cliff based notches → eroded bottom making a hanging cliff
what are these?
marine potholes
what are these?
sea caves → weaker area eroded
what are these?
arches
what are these?
stacks → resiliant material left over
what are these?
stumps
what is this?
tombolo → spit connecting to island
what is this?
spit
what are these?
sandbars → accumulation of sand
what are these?
barrier islands → along the coast, more permanent
what is this?
lagoon → enclosed area of the ocean
what is this?
atoll
what is this?
tidal flats → settling of clay and silt material
what is this?
salt marsh
what is this?
mangal
how are salt marshes and mangals formed?
when salt tolerant vegetation colonizes tidal flats
Note 
Flashcard (78)