Collaroy Narrabeen Beach Erosion Time Lapse

[michaellee1990]

look at it now and it summer.. and the sands all back it happens every year due two a few big swell during winter. then the on shore brings it all back in summer. i have lived on this beach my whole life and can assure evryone it dose this every year

[33noa33]

In the NW Australia, we have huge tides,

huge evaporation and huge dry rivers and lakes.

Tides are up to 12m. Evaporation is up to 4m per year .

Huge 12m tidal erosion can revive old dry once mighty rivers, creeks and lakes,

desalinate the country and change deserts to rain forests to provide more rain across Australia.

we need more energy, food, land, water and cooler climate,

Plenty of energy and HYDROGEN TO RUN YOUR CAR environment friendly.

see: mitic climate engineering

[Soneclipseredvblue]

Nature ftw.

[ftan2008]

dis is mei haus

[sdthird10]

wow alot of sand has been lost

[OZcheckm8]

I wonder if keeping Narrabeen Lakes open to the ocean will improve the sand banks? Alot of sand must naturally come from the lake yeah? I heard they closed the lake so people can walk all the way up the beach.

Also, when you build up to the high water mark you stop normal erosion. You'd assume the beaches over 100s of years would move more inland if they could.

Also, also, i thought they banned future development & sale of this beachfront land? There's been heaps of development latley!

[JoaoCorreia12]

thanks :)

[MusiccOnlyy]

thank you for this :)

[Iamshort435]

lol our Geography teacher told us to look this up

[JakeTrimmings]

same

[mp3robbo]

That is insane

[mashafalkov]

I read once that the deflection of wave energy from seawalls onto non-sea walled areas can contribute to such dramatic erosion.

[theholydeath1]

I heard that too.

[kalashinakov]

i love collaroy

[mitchellharley]

thats right. 90% of the erosion during this whole period took place during those 3 days of the first storm.

[wombatrage]

@mitchellharley were these pictures taken from Flight Deck?