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Bob
17th July 2015, 19:39
Another thread has had a discussion off the North American undersea area off the coast. Near an Island.

It's been made clear that the image engine induces distortions and the accuracy of the data may or may not be accurate that is used by the mapping presentation. Some examples will be shown of interesting "features" left unchecked could give rise to speculation once again.

I'm not asking a question here, just showing ocean bottom features using Google Earth Pro to look around. The images are FLAT 2D view unless otherwise noted. And after that, we'll take a look at an interesting image on Mars from the MARS imagery feature on Google Earth.

That artifacts can be induced by the translation from the original opticals (surface) or bathymetry data (underwater) and what one gets when using one of the graphics display programs is being shown.

The point is the graphics programs are great for quick and entertaining views..

The additional point is for research purposes, use a proper geomapping program that renders without distortion. Those are not free and are not sponsored by advertisements.



Views of the ocean bottom off Hawaii:

http://chanlo.com/images/hawaii-no-tilt.jpg

note the weird squiggly "tubes" - no underwater base here.


http://chanlo.com/images/hawaii-no-tilt-2.jpg

note the grid-like pattern (that is from upwellings of magma, and bottom movement, spreading - the magma pulses flows upwards, cools, the ocean bottom moves, the process repeats. No mystery.



View of the Islas san Benito (island) area noted in another thread, showing the squiggles in the ocean bottom features:

http://chanlo.com/images/flat-no-tilt.jpg

further north are similar evidence of ocean magma evidence and plate spreading:

http://chanlo.com/images/flat-no-tilt-2.jpg

What happens with magma, fractures, pressures, cooling, and heating is interesting and unique. Newer features tend to be more intact and less distorted. Deeper features (depending on the bathymetry used) tend to be blurry due to the depth from the sonar system. A 15,000 foot deep scan being done from 5,000 foot water depths IS going to be "smoothed out" due to less information reaching the sensor which is higher up..

The only true way to have bottom image data is to go there, be there with close up high resolution sensors and use MINIMUM data enhancement techniques, which can evoke image distortions.


It's fun to look around with google obviously. Have fun and happy hunting !

Oh look ! I see an outline of a HORSE traced out on the eastern Pacific ocean bottom (where numerous plates come together !)

http://chanlo.com/images/pacific-plate-image.jpg


Mars - see the two faces?

http://chanlo.com/images/Mars-Two-Faces(2).jpg

http://chanlo.com/images/Mars-Two-Faces(1).jpg

http://chanlo.com/images/Mars4.jpg

Selkie
17th July 2015, 20:05
Yes, and between old software and imaging technology, and pareidolia,

https://en.wikipedia.org/wiki/Pareidolia

well...let's just say that its a good thing not to be too invested in certain ideas.

Bob
17th July 2015, 20:25
Pareidolia..

Ah that's it !

I think humans are hard wired to find images, or find something in brief bits of data and try to make sense out of it, instead of processing the immense amount of data needed.

A brief flash sent to the brain of a shadow which looks like a wolf, may simply be well a SHADOW.. and nothing else..

A hard-wired survival feature of the brain, to get one out of a potentially dangerous situation.. makes sense for body survival.. But what happens when the higher mind ends up being DRIVEN by images which are not necessarily really what they seem to be? Confusion? Speculation? Conspiracy? one can take an inventory..

And couple in "image enhancement artifacts" and it becomes very ungrounded, leaving one to deal with "well I FEEL it is this, you can't challenge my feelings !"

Well, science and feelings, objectivity.. gee questions.. how to move forward?

(see: http://www.crystalinks.com/shadowpeople.html for more on image dub-in phenomenon)

An anecdote: After having been in a relatively cockroach infested area, the Texas-Sized Roaches and being in the heat all day, sweating at 102 degrees with 90% humidity, coming back to the hotel room, taking a cold shower to get my body temperature down below 101... I saw the roaches all over the room.. Now was I imagining those or were they real? They WERE in the field, I am pretty sure of that, due to the immense amounts of rain fall all around... But they re-appeared, when the body was trying to come to terms with a stressful day..

I suppose what makes it more like a hallucination circuit kicked in from the heat, the continual re-stimulation of "triggering images" (that concept is a key concept to use for dot connecting).. after I got back to my house I saw some of the critters out of the corner of my eye, scurrying around.. And they were I swear, the same big 2 inch cockroaches, that I had seen in the field.. After I completely checked everywhere, there WERE NONE.. A circuit apparently exists in the brain when stimulated with "triggering images" then can turn on after-the-fact when stressed, the "images" or the "program" or the synthetic reality given one.

It happens. Asking what is it is good. Use the right tools to solve it.

Bob
17th July 2015, 22:02
HOW do we get the source data?

A: Go to the Source of it... :)

Credit to NOAA/NGDC for these animations:

Let's go exploring image rendering animation, based on NOAA's and NGDC's data - they put together a MOV image (30 megs download and some larger available). Imagineering ! Beauty, and "blurred images' data" corrected :)

The Mariana Trench Dive Animation is based on data approximately within the Devil's Triangle off Japan - that trench is pretty darned deep ! What all is down there?


https://www.ngdc.noaa.gov/mgg/image/images/marianasicon.jpg


https://www.ngdc.noaa.gov/mgg/image/dives/marianas/marianarocky2.mov

Lowres:
https://www.ngdc.noaa.gov/mgg/image/dives/marianas/marianas.mpg

Hires (140 megabyte):
https://www.ngdc.noaa.gov/mgg/image/dives/marianas/marianas_hdv.mov

(Source (https://www.ngdc.noaa.gov/mgg/image/marianas.html))

As was pointed out in another thread by a member, getting accurate starting point data is essential, and how the data is sewn together is important (stitched). Has it been enhanced or embellished? The truth comes from the researcher working with the data, what has been objective, what has been subjective, and the power of the software to not alter the original.

Unless one is going to go on-site, and get the data themselves, one has to rely on databases. Those databases when they are high accuracy are usually commercially available by a survey organization. AND the cost for such ocean bottom surveys is NOT CHEAP. Oil companies are the greatest users of such data as is the military of many governments who need accurate bottom data to show "FEATURES" which submarines can run into if not mapped properly..

Pipelines, telecommunications services, undersea cables (power and communications) are all users of commercial grade bathymetry data. Similarly, LIDAR was mentioned for precision aerial feature mapping (very precise heights are measured).. HOW that raw data is integrated into a database is unique to the mapping service. Usually a custom format or a standard format is used to try to allow for GIS readers (ArcGis for instance, shown here (http://www.esri.com/software/arcgis/arcreader/) ) is what often times is used.

Some more data references (sources) are listed HERE (https://www.ngdc.noaa.gov/mgg/coastal/coastal.html): https://www.ngdc.noaa.gov/mgg/coastal/coastal.html

Ellisa
18th July 2015, 01:26
Love the cats! And, silkie, yours made me laugh out loud! My cat has made no attempt to contain his joy when my little elderly pug died recently. He is really enjoying being Only Animal!

hese undersea photos are wonderful. There is so much we do not know about our own planet I think. We especially want to explain things we do not understand, and we see things that sometimes cannot be replicated. I think this is the way we discover things too. There have been many people with an obsession who lead the way to innovation. We need them!