how are they formed?
by weather systems that operate in the open ocean
how long is the wavelength?
long
what is the frequency?
6-9 per minute
what are they wave characteristics?
low waves, which surge up the beach
what are the swash characteristics?
strong swash, weak backwash
what is its affect on the beach?
occurs on gently sloped beaches
when do constructive waves dominate?
in summer