Comments on: Weirdness on the Ocean Floor http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/ Why bother seeing the world for real? Fri, 20 Nov 2009 18:32:10 +0000 http://wordpress.org/?v=2.8.5 hourly 1 By: pak http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-207083 pak Sun, 08 Nov 2009 04:14:24 +0000 http://googlesightseeing.com/?p=4426#comment-207083 only one comment... 90º angles do no mix with natural formations. it's very unusual to find that king of angles in nature. only one comment… 90º angles do no mix with natural formations. it’s very unusual to find that king of angles in nature.

]]> By: vanjulio http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-204651 vanjulio Sat, 21 Feb 2009 13:29:31 +0000 http://googlesightseeing.com/?p=4426#comment-204651 hey look - we're famous! (NOT!) wow. Google should have been proactive on this for all of us (expert or not). Look how the wildfire burns: http://www.informationweek.com/news/internet/google/showArticle.jhtml?articleID=214502197&cid=iwhome_art_Googl_mostpop http://www.thesun.co.uk/sol/homepage/news/article2255989.ece hey look – we’re famous! (NOT!) wow. Google should have been proactive on this for all of us (expert or not). Look how the wildfire burns:

http://www.informationweek.com/news/internet/google/showArticle.jhtml?articleID=214502197&cid=iwhome_art_Googl_mostpop

http://www.thesun.co.uk/sol/homepage/news/article2255989.ece

]]> By: Adrian Park http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-204568 Adrian Park Mon, 16 Feb 2009 07:28:41 +0000 http://googlesightseeing.com/?p=4426#comment-204568 A ship track from a detailed sonar survey certainly seems plausible, though it does beg the question why anyone would do that on the featureless abyssal plain well away from the more interesting mid-Atlantic Ridge or the many seamounts and volcanic islands surrounding this region. In 1968 the US nuclear submarine 'Scorpion' sank in this part of the Atlantic with the loss of all hands. Might this be a sonar survey associated with attempts to locate the wreckage or even recover the wreck? A ship track from a detailed sonar survey certainly seems plausible, though it does beg the question why anyone would do that on the featureless abyssal plain well away from the more interesting mid-Atlantic Ridge or the many seamounts and volcanic islands surrounding this region. In 1968 the US nuclear submarine ‘Scorpion’ sank in this part of the Atlantic with the loss of all hands. Might this be a sonar survey associated with attempts to locate the wreckage or even recover the wreck?

]]> By: Evon http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-204490 Evon Mon, 09 Feb 2009 21:11:09 +0000 http://googlesightseeing.com/?p=4426#comment-204490 I think it's bad to assume that all the lines on the topography data are a result of processing artifacts. While a great many of they may be, there are still a few that are actually being picked up on satellite imagery. For example, look at this site with Google Earth: http://www.satellitediscoveries.com/discoveries/land_sea_coast_structures/florida/florida.html If you look closely you can see the lines ARE being picked up on the topography and they ARE in the satellite image. Also look at this anomaly: http://www.googleearthanomalies.com/Anomalies/tabid/56/articleType/ArticleView/articleId/31/Topographic-Anomalies-NC-Area.aspx More than a bit odd. Is it really there? I think it’s bad to assume that all the lines on the topography data are a result of processing artifacts. While a great many of they may be, there are still a few that are actually being picked up on satellite imagery. For example, look at this site with Google Earth:
http://www.satellitediscoveries.com/discoveries/land_sea_coast_structures/florida/florida.html
If you look closely you can see the lines ARE being picked up on the topography and they ARE in the satellite image.

Also look at this anomaly:
http://www.googleearthanomalies.com/Anomalies/tabid/56/articleType/ArticleView/articleId/31/Topographic-Anomalies-NC-Area.aspx
More than a bit odd. Is it really there?

]]> By: LarryM http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-204447 LarryM Thu, 05 Feb 2009 16:58:23 +0000 http://googlesightseeing.com/?p=4426#comment-204447 I'm an oceanographer. I can tell you the grid pattern is simply the location where a ship has been to collect high-resolution data. In most places, the seafloor bathymetry is deduced from satellite measurement of the sea surface. It's the "predicted bathymetry", a good guess, but still, not as reliable as a direct measurement. In this case, some ship went there, collected bathymetry, but it seems that it didn't agree exactly with predicted bathymetry, so the ship tracks appear as a grid. It shows how poorly know the seafloot really is! There are many other places where similar tracks are found (for example see a bit to the east). The tracks are particularly visible where the seafloor is sedimented and very smooth, like here. As for the irregularity, it's a function of targeting study locations and minimizing the time (and cost) of the survey. I’m an oceanographer. I can tell you the grid pattern is simply the location where a ship has been to collect high-resolution data. In most places, the seafloor bathymetry is deduced from satellite measurement of the sea surface. It’s the “predicted bathymetry”, a good guess, but still, not as reliable as a direct measurement. In this case, some ship went there, collected bathymetry, but it seems that it didn’t agree exactly with predicted bathymetry, so the ship tracks appear as a grid. It shows how poorly know the seafloot really is! There are many other places where similar tracks are found (for example see a bit to the east). The tracks are particularly visible where the seafloor is sedimented and very smooth, like here. As for the irregularity, it’s a function of targeting study locations and minimizing the time (and cost) of the survey.

]]> By: DM http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-204432 DM Tue, 03 Feb 2009 21:37:57 +0000 http://googlesightseeing.com/?p=4426#comment-204432 The grid lines are most likely a processing artifact. Most of the ocean bathymetry data comes from satellite measurements of gravity. The gravity data are cross-checked against ship sonar tracks from a variety of vessels. The pattern you are seeing is typical for a research vessel surveying a patch of ocean floor. The gravity data and sonar data don't always match up perfectly (the sonar data are many times more detailed than the gravity data) so you get these artifacts along the edges of the ship sonar. The grid lines are most likely a processing artifact. Most of the ocean bathymetry data comes from satellite measurements of gravity. The gravity data are cross-checked against ship sonar tracks from a variety of vessels. The pattern you are seeing is typical for a research vessel surveying a patch of ocean floor. The gravity data and sonar data don’t always match up perfectly (the sonar data are many times more detailed than the gravity data) so you get these artifacts along the edges of the ship sonar.

]]> By: Capital Chay http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-204423 Capital Chay Mon, 02 Feb 2009 21:05:02 +0000 http://googlesightseeing.com/?p=4426#comment-204423 What is the official largest type? The grid is kind of strange. Are there any people local to the nearest are that may have some knowledge? What is the official largest type? The grid is kind of strange. Are there any people local to the nearest are that may have some knowledge?

]]> By: Dio http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-204410 Dio Sun, 01 Feb 2009 09:12:21 +0000 http://googlesightseeing.com/?p=4426#comment-204410 Something funky going on here as well: http://googlesightseeing.com/maps?p=&c=&t=k&hl=en&ll=74.531614,42.1875&z=5 Something funky going on here as well: Placemark: Google Maps / Google Earth

]]> By: koen http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-204408 koen Sat, 31 Jan 2009 15:02:04 +0000 http://googlesightseeing.com/?p=4426#comment-204408 aliens... aliens…

]]> By: aliosha http://googlesightseeing.com/2009/01/28/weirdness-on-the-ocean-floor/comment-page-1/#comment-204396 aliosha Fri, 30 Jan 2009 00:51:00 +0000 http://googlesightseeing.com/?p=4426#comment-204396 then, it seems to be just a mother nature's joke ;) "...The abyssal plain sediments consist of a sequence of thin to very thick structureless muds, sometimes underlain by thin, commonly laminated, silty muds interbedded with thin bioturbated marls and clays. The thin to very thick structureless muds were deposited by turbidity currents from three main sources: the flanks of the volcanic Canary Islands and, possibly,Madeira; the Northwest African continental slope; and seamounts and hills to the west of the plain). [...] Over the last 300,000 yr, 600 km3 of turbidites, compared with 60 km3 of pelagic sediments, have been deposited on the plain..." from http://www-odp.tamu.edu/publications/157_SR/VOLUME/CHAP_28.PDF then, it seems to be just a mother nature’s joke ;)
“…The abyssal plain sediments consist of a sequence of thin to very thick structureless muds, sometimes underlain by thin, commonly laminated, silty muds interbedded with thin bioturbated marls and clays. The thin to very thick structureless muds were deposited by turbidity currents from three main sources: the flanks of the volcanic Canary Islands and, possibly,Madeira; the Northwest African continental slope; and seamounts and hills to the west of the plain). [...] Over the last 300,000 yr, 600 km3 of turbidites, compared with 60 km3 of pelagic sediments, have been deposited on the plain…”
from http://www-odp.tamu.edu/publications/157_SR/VOLUME/CHAP_28.PDF

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