Comments on: Tubes In The Ocean → Bizarre Marine Technology http://gcaptain.com/maritime/blog/tubes-in-the-ocean-%e2%86%92-bizarre-marine-technology/ A Blog About Ships Tue, 16 Mar 2010 21:35:55 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: JKB http://gcaptain.com/maritime/blog/tubes-in-the-ocean-%e2%86%92-bizarre-marine-technology/comment-page-1/#comment-15627 JKB Mon, 22 Dec 2008 22:35:42 +0000 http://gcaptain.com/maritime/blog/?p=4494#comment-15627 I was at a meeting once to investigate the use of 100% coverage bathymetric surveys for marine biologist. The biologists came up the the requirements for millimeter resolution over 100% of the EEZ every 5 years. Compare that to the estimate of needing over $5 billion to just collect meter resolution data (not counting processing and management) and that with the current survey capability at the time in the US would take over 500 years to do it once. As of 2008, NOAA still has 20,000 snm of critical navigationally significant areas to survey with a survey rate of little over 1000 snm a year. The EEZ is about 3.4 million snm. http://www.nauticalcharts.noaa.gov/hsd/NHSP.htm I was at a meeting once to investigate the use of 100% coverage bathymetric surveys for marine biologist. The biologists came up the the requirements for millimeter resolution over 100% of the EEZ every 5 years. Compare that to the estimate of needing over $5 billion to just collect meter resolution data (not counting processing and management) and that with the current survey capability at the time in the US would take over 500 years to do it once.

As of 2008, NOAA still has 20,000 snm of critical navigationally significant areas to survey with a survey rate of little over 1000 snm a year. The EEZ is about 3.4 million snm.

http://www.nauticalcharts.noaa.gov/hsd/NHSP.htm

]]> By: John http://gcaptain.com/maritime/blog/tubes-in-the-ocean-%e2%86%92-bizarre-marine-technology/comment-page-1/#comment-15566 John Sun, 21 Dec 2008 05:33:00 +0000 http://gcaptain.com/maritime/blog/?p=4494#comment-15566 The local town council here in Morro Bay is very excited by a "Green Tech" companies promises to move forward on similar technology. The fishing fleet has suffered in recent years and we need a boost to get these guys back out to sea. The council was disappointed (to say the least) after asking me if the proposal was realistic. The local town council here in Morro Bay is very excited by a “Green Tech” companies promises to move forward on similar technology. The fishing fleet has suffered in recent years and we need a boost to get these guys back out to sea.

The council was disappointed (to say the least) after asking me if the proposal was realistic.

]]> By: JKB http://gcaptain.com/maritime/blog/tubes-in-the-ocean-%e2%86%92-bizarre-marine-technology/comment-page-1/#comment-15557 JKB Sat, 20 Dec 2008 20:24:10 +0000 http://gcaptain.com/maritime/blog/?p=4494#comment-15557 Did you ever get the idea these guys don't really appreciate the scale of the forces or areas they are trying to work with. Nice concept but $5 billion to deploy, how much to maintain? Does that include vessel costs? 1.6 million pumps would require its own fleet of maintenance vessels. And yet that is only to possibly impact a hurricane in the GOMEX but I doubt that 1.6 million pumps would have much of an impact given how much energy hurricanes consume. Not to mention they lost their test pumps is small seas (8ft max over deployment) and presumably not near an ocean front. I've seen fronts tie a longline into 20 miles of rat's nests during a 12 hr soak. The loss rate would mean a lot of plastic drifting around mid-ocean depth or on the seafloor. As we all know, the ocean doesn't take to well to harnessing. Best you can hope for is she doesn't find a flaw in your technology that will kill you. Did you ever get the idea these guys don’t really appreciate the scale of the forces or areas they are trying to work with.

Nice concept but $5 billion to deploy, how much to maintain? Does that include vessel costs? 1.6 million pumps would require its own fleet of maintenance vessels. And yet that is only to possibly impact a hurricane in the GOMEX but I doubt that 1.6 million pumps would have much of an impact given how much energy hurricanes consume.

Not to mention they lost their test pumps is small seas (8ft max over deployment) and presumably not near an ocean front. I’ve seen fronts tie a longline into 20 miles of rat’s nests during a 12 hr soak. The loss rate would mean a lot of plastic drifting around mid-ocean depth or on the seafloor.

As we all know, the ocean doesn’t take to well to harnessing. Best you can hope for is she doesn’t find a flaw in your technology that will kill you.

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