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Using R44 And A PowerBook To Bust Illegal Seawalls

Sylvestre writes "Ken Adelman, founder of TGV and Network Alchemy, is using a digital camera, helicopter, and a Power Book to take a high resolution photograph every 500 feet down the California coast. The goal? Busting people putting up illegal sea walls. The catch so far? One golf course covered the beach with boulders. Also of note: the website has 44 gigs of photos so far, runs on solar power, and is Microsoft Free. Best use of technology I've seen all month!"

5 of 361 comments (clear)

  1. Re:Why illegal? by SirKron · · Score: 5, Informative

    Sea walls are illegal if it can obstruct the natural sea life from living its life. Example: frogs cannot get from the water to the land to multiply and be fruitful.

  2. Re:Why illegal? by El · · Score: 5, Informative

    Because beaches are public property. Erecting a wall in the middle of the freeway might improve your property too (cut down on that damn traffic noise!) but that's also illegal.

    --

    "Freedom means freedom for everybody" -- Dick Cheney

  3. Re:Why illegal? by !splut · · Score: 5, Informative

    Frogs do not live in saltwater. No frog larvae (tadpoles) are able to survive in salt water. A very small minority of frogs are able to tolerate brackish water as adults (Bufo marinus, the infamous caine toad, is one such animal), but no adult frogs live in seawater either.

    I'm sure you're right about why sea walls are illegal, but if the legislation is limited to points along the coast, then your specific example is incorrect. Destruction of the habitat of shorebirds or the nesting sties of seaturtles would be a better example.

    --
    The angel in the oatmeal.
  4. Re:Why not just use a digital camcorder? by FearUncertaintyDoubt · · Score: 4, Informative
    Seems like it would be much easier to just take a decent digital camcorder and fly down the coast at a moderate rate of speed. Better continuous coverage, much much faster, and if the real purpose IS to look for breakwaters or illegal rockpiles, certainly a digital camcorder image would work for that.

    I wonder if there isn't some other motive here, requiring high-res images.

    Bingo. An NTSC mini-DV camera gives you 720x480 resolution. Not only that, but you'd be amazed at how hard it is to make out detail in a still image from a video signal. And a 29.97 frames/sec video feed doesn't give you much of a benefit - maybe if you were flying overhead in a SR-71. In a helicopter, 1 frame/sec would be overkill. You'd be much better at 1 frame/sec with 30x the resolution.

  5. Why seawall bad? Basic physics by Anonymous Coward · · Score: 5, Informative

    Good on this guy. If the government won't pull their finger out it is the obligation of the citizens.

    Seen a lot of comments here about why seawalls are bad and the only explanations given are legals ones. Not suprising given most people here are americans.
    The reason is one of basic physics, the legal arguments have to take second place.Unless you think you can legislate against nature. Please ignore this if you think you have a right to destroy other people property and public property and the general environment to protect your own interests.

    If there is a rock, a wall, a washed up spare tyre, anything that is a hard object on the beach, then when the water hits it during normal wave action, the wave will retreat back to sea at a higher speed because it's energy hasn't been absorbed. Normal beaches (with sand) absorb the wave impact. If the water is going faster, it removes sand as it returns to the ocean and thus erodes the beach, much faster than natural movements. Even a small hard object on a beach can show this, one season I saw the tire I mentioned above, a tractor tyre, chop a gully about 0.5m deep and about 6-7m wide, just from wave action on this one small object. A wall will destroy the beach.

    Remember beaches ARE NOT FIXED in the earth, they rise, fall and move around on a seasonal basis. Beach nourishment is not to replace sand that is lost, but to re-build the natural shoke absorbing action of an already eroded one.

    Sydney residents please visit http://www.realsurf.com/nowall/ and please think about supporting this cause, we know what private interests have f**ked up in the states through ignorance and greed, lets not let it happen at home.

    phil