Comments on: Dispatch from Sea: DISCOVRE Expedition https://deepseanews.com/2008/10/dispatch-from-sea-discovre-expedition/ All the news on the Earth's largest environment. Fri, 24 Oct 2008 00:54:14 +0000 hourly 1 https://wordpress.org/?v=7.0 By: CR McClain https://deepseanews.com/2008/10/dispatch-from-sea-discovre-expedition/#comment-4676 Fri, 24 Oct 2008 00:54:14 +0000 https://www.deepseanews.com/2008/10/dispatch-from-sea-discovre-expedition/#comment-4676 Phillip,
Your idea is actually being done here at MBARI in just about the same way you propose. In the second link you can see how the engineers here dealt with the problem Peter raises by putting a flexible S bend in the cable.

http://www.mbari.org/moos/mooring/mooring.htm

and

http://www.mbari.org/news/homepage/2004/moosII.html

]]> By: Peter https://deepseanews.com/2008/10/dispatch-from-sea-discovre-expedition/#comment-4675 Thu, 23 Oct 2008 23:57:02 +0000 https://www.deepseanews.com/2008/10/dispatch-from-sea-discovre-expedition/#comment-4675 Yeah, I’m trying to picture a 500 m rope and buoy system that wouldn’t somehow lift the lander off the bottom in a big swell. Excellent question, Philip. Your response is direct from the RV Nancy Foster! Thanks for the quick response, Steve. Good luck to the Expedition.

]]> By: Steve Ross https://deepseanews.com/2008/10/dispatch-from-sea-discovre-expedition/#comment-4674 Thu, 23 Oct 2008 20:26:31 +0000 https://www.deepseanews.com/2008/10/dispatch-from-sea-discovre-expedition/#comment-4674 In response to this comment/question, this is currently the most efficient and cost effective way to deploy the landers in deep-sea depths. A bouy & satellite system would quickly make the system too expensive and prone to failures. We will be working on some different ways to get the data back sooner. While 4 years would be nice, few (if any) instruments can record accurately for that long because of issues with biofouling, battery life, and calibrations.

]]> By: Philip H. https://deepseanews.com/2008/10/dispatch-from-sea-discovre-expedition/#comment-4673 Thu, 23 Oct 2008 14:21:17 +0000 https://www.deepseanews.com/2008/10/dispatch-from-sea-discovre-expedition/#comment-4673 Such cool stuff. I am so jealous. I am also curious – why do you have these set up as “drag and drop” instrument packages – you deploy, leave on the bottom, and retrieve to download. Why not a buoy with a satellite transmitter that the lander can deploy and real back in from time to time? Four days is great, but four years would be so much better!

]]>