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The Google Earth Atlantis

 
 
Reply Sat 21 Feb, 2009 07:24 pm
http://tech.yahoo.com/blogs/patterson/39274

Simply type the following into Google Earth as a search term:
31 15'15.53N, 24 15'30.53W

and zoom in. Google says it's an artifact of mapping software; they don't try to explain why there aren't more such artifacts.

Quote:

Quick"fire up Google Earth on your PC, and find the following coordinates: 31 15'15.53N, 24 15'30.53W (hint: it's about 600 miles west of Morocco, deep in the Atlantic Ocean). Zoom in, and check out that rectangle on the ocean floor. Could it be … Atlantis?
That's what a squad of "Atlantic experts" are telling the Daily Telegraph, and indeed, the rough rectangle"complete with dozens of shaky grid marks carved into the ocean floor"is a surreal sight, at least to the untrained eye.

Apparently, the oddly shaped box marks "one of the most prominent places for the proposed location of Atlantis, as described by Plato," said New York State University historical archaeology curator Dr. Charles Orser (as reported by the Telegraph).

Amazing"so amazing, in fact, that the story touched off an online firestorm Friday morning, with the search term "Atlantis" ending up as a top trend on Twitter. So ... should we dispatch James Cameron and his team of IMAX-equipped submersibles to investigate?

Well, maybe not, says this party-pooping report from the Daily Mail.

Turns out the odd rectangle doesn't actually exist, according to a Google rep; instead, it's simply an "artifact of the data collection process," representing the criss-cross patterns of sonar-equipped boats scanning the ocean floor.

Uhhhh … "artifact of the data collection process"? Please. I smell a cover up!


Somebody apparently found this one while trying out Google's new underwater stuff.
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Type: Discussion • Score: 2 • Views: 2,595 • Replies: 13
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rosborne979
 
  2  
Reply Sun 22 Feb, 2009 07:45 am
@gungasnake,
So it's either a data error like Google says it is, or it's Atlantis. Hmmmm, let me see, which could it be?

0 Replies
 
farmerman
 
  1  
Reply Sun 22 Feb, 2009 05:11 pm
@gungasnake,
Turns out that the area has been scanned and rescanned by SPOT and other satts. The item is a SPOT grid that presents data as distance below the sea surface at the time of the pass in which the data was collected. There is a reason for this, A sunken sub is in the area and it was used as a target for calibration. If you zoom in you can actually see the sub. This I confirmed with a SPOT marine geophys colleague who has way more experience in this technique than we do. I sent him the ATlantis stuff and his comment was "Jeez, when do these people give up"? maybe theyll find out that the UFOs at Roswell came from a base neaar this "anomaly"
rosborne979
 
  1  
Reply Sun 22 Feb, 2009 07:20 pm
@farmerman,
You mean we haven't discovered ATLANTIS! Awwwwwwwwww darn.
0 Replies
 
gungasnake
 
  1  
Reply Mon 23 Feb, 2009 10:24 pm
@farmerman,
This is the sort of thing which keeps you off the ignore list...

What exactly is a SPOT grid and why should it show up on Google Earth??
farmerman
 
  2  
Reply Tue 24 Feb, 2009 06:59 am
@gungasnake,
SPOT is a French Acronym, something like Sattelite Pour Observation de la Terre (just do that with a French accent and youll have it)
s a system that is polarcircumferential andsun synchronous, with overlapping coverage at a 25 day cycle of coverage. Theres 5 generations of SPOTs, (theyve been flying since the mid 80's with B/W and color res as well as IR and , I believe a SLARR coverage.

The SPOTS (especially SPOT 5) have stereo coverage on simultaneous passes they have a forward and rear looking scanner. Two of them aslo have multispectral capabilities so the earth resources business is always downloading them with the readers (They make their money like a cable tv station where you can subscribe and pay 29.95 a month for your place at the table) We use SPOT several times a year but dont use any readers unless we have a special project that needs monthly coverage at a rate of about 16 shots a day for the same spot on the planet.
Using satt data gets real anal real fast and people (I find) just waste a lot nof time beyond the normal of just scanning a projects area. Thats why, if you look at the "Atlantis" shot, on maginification you can see thesub that on the bottom.
The grid is just an artifact that is sometimes displayed over areas with no relief. The ocean bottom abyssal plains are one such area(snow pack is another.)
I dont know how this grid is propogated other than the fact that its little squares are telling you that those are areas of some equivalent depth BELOW the sea surface.

Google earth is one service that uses SPOT satt data.



DrewDad
 
  1  
Reply Tue 24 Feb, 2009 07:55 am
@gungasnake,
Well, they either found Atlantis or they found an artifact. Isn't that exciting enough?
0 Replies
 
Setanta
 
  1  
Reply Tue 24 Feb, 2009 08:00 am
Who are "they?" I was once informed (by David Letterman, an unimpeachable source) that "they" are the Dick Van Patten family of San Diego. But am i to believe that they have access to satellite data denied to the rest of us? Is there not something just a little bit fishy (all puns intended) about the amount of power this family wields in oceanic survey? Just exactly where were the Dick Van Patten family on September 11th, 2001?
farmerman
 
  1  
Reply Tue 24 Feb, 2009 08:47 am
@Setanta,
Youre just tryin to be a wise ass cause youre not on gungas "Not ignored list". Youre part of the "ignored" hoi poloi.
0 Replies
 
Setanta
 
  1  
Reply Tue 24 Feb, 2009 11:35 am
Yeah? You wish you were one of that hoi-poloi . . .
0 Replies
 
gungasnake
 
  1  
Reply Wed 25 Feb, 2009 01:15 am
@farmerman,
I can't find a submarine in the image. Possibly because the patern in question is around the size of England and it's not clear why you'd need something that big to mark a submarine....
farmerman
 
  1  
Reply Wed 25 Feb, 2009 04:22 am
@gungasnake,
ya gotta download the software. Thats just the way these grids work. The world is a big place and some abyssal plains are bigger than the Sahara.
MAkes you appreciate geography though. Think about how long it took to find STeve Fossetts plane wreckage and that was in a relatively small area. When they look for wreckage they expand grids over large areas. Why not just put submarine wreckage into the coordinates and see if they give it to you for free.
0 Replies
 
gungasnake
 
  1  
Reply Wed 25 Feb, 2009 09:11 am
The official explanation doesn't appear to involve submarines...

http://bits.blogs.nytimes.com/2009/02/25/google-explains-watery-mystery-of-atlantis/

Quote:

February 25, 2009, 6:34 am
Google Explains Watery Mystery of ‘Atlantis’
By Jenna Wortham

The bizarre markings spotted using Google Earth’s new underwater search tool last week unleashed a tsunami of theories and speculation across the Web about the origins of the grid-like pattern.

The most popular theory was that the markings were signs of the lost city of Atlantis. But Bits readers also wondered if the maze of lines could be anything from the mystical island featured on the television show “Lost” to an underwater lair inhabited by former Vice President Dick Cheney.

According to Google, it’s time to shelve those tinfoil hats.

In an interview, Steve Miller, product manager for Ocean in Google Earth, firmly debunked rumors that the crisscross markings were anything other than artificial data remnants left by sonar-equipped boats collecting data from the ocean floor.

While sound waves are considered to be more effective than satellites for mapping strips of the ocean floor, they’re often more expensive and time-consuming to use. “The boats have to go slowly. Otherwise, they make a lot of noise and can wash out the readings,” said Mr. Miller. As a result, boats are used less frequently, leaving fewer grid-like sonar patterns visible on Google Earth’s map of the ocean.

For the patch of ocean that drew so much attention last week, there was a discrepancy in the readings collected from satellites and the higher-resolution echosounding data collected by boats at water level. That caused exaggerated traces to show up on the map. Typically, when data collected by satellites and sonar surveys are blended, the result is much smoother, Mr. Miller said. But here, the “batches of imagery didn’t overlap properly.”

Mr. Miller compared it to the blurry stripes that are occasionally visible in Google Earth’s land maps. “Those patches are from cameras and instruments using different resolutions,” he said. Over time, those uneven patches smooth out as Google puts more images and data into the system.

As for the speculation that the markings off the western coast of Africa were located near one of the possible sites of the fabled sunken city of Atlantis, Mr. Miller said it was a coincidence. “To my knowledge, the researchers weren’t looking for Atlantis. They conducted this survey many years ago.” They very likely sent out a boat to comb for additional readings in this particular area, he said.

Mr. Miller also highlighted several other findings in Google Earth’s new Ocean feature, including a newly formed volcanic island close to Hawaii and an underwater mountain range in the Atlantic Ocean where two tectonic plates are visibly shifting away from one another.

Was the whole “Atlantis” uproar a well-orchestrated publicity stunt for Google’s new ocean maps, which were introduced earlier this month?

Mr. Miller said no. But the reports certainly drew a lot of armchair explorers eager to view the waterlogged pattern. Searches for “google ocean” and “atlantis google ocean” spiked over the last several days.

farmerman
 
  1  
Reply Wed 25 Feb, 2009 03:53 pm
@gungasnake,
Well, you heard it here then. There is a sub there, youve gotta get the software and blow up the central grid sections. Youll see the hit. Wait, theres a knock at my door.....
0 Replies
 
 

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