Keith, nice presentation. One thing missing is the Navy's depletion of sand to Oceanside Beach: The Oceanside Harbor includes both Camp Pendleton Harbor (constructed in 1942) and the Recreation and Small-Craft Harbor (constructed in 1963). Sand from the construction of these harbors was placed on City beaches following various coastal construction projects, adding over 5 million cubic yards (cy) of sand to the beach between 1944 - 1982. Since the completion of the Harbor projects, a continued deficit of sediment in the littoral cell that flows to Oceanside beaches has created a persistent state of erosion. Previous USACE studies estimate that Oceanside Harbor has caused a 1.4 to 1.6-million cy loss of sand volume from Oceanside beaches since 1942. Sand loss has caused the beaches south of Oceanside Harbor to retreat 6.6 ft/year in some areas.

Awesome explanation! thanks.

Thank you so much, very deep explanation!

very instructive. thank you!

Sand comes from the rivers then. Constant erosion from the land to the sea.

very informative

Thank you very much, very clear.

across the East Coast many beaches have longer/shorter groins. Are these in place to hold sand from longshore drift?

Excellent!

Do these canyons have anything to do with tidal jet currents ?

Nice explanation👌👌👌 sir but use subtitles Also.

i like

Ty

Cristal clear. Thanks.

@eugenedsky3264

4 ай бұрын

Crystal... Indeed.

thanks

this shit is fascinating

@badgoy8439

2 жыл бұрын

the underwater footage is amazing as well

grrr

I dont know what i am doing here ???