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2002 Calendar

Daily research expedition updates posted from July 14-23, 2002. Updates included a teacher-at-sea logbook entry and a student's question of the day.

Before and after NeMO 2002, join some of these same scientists on the Exploring the Submarine Ring of Fire expedition, June 28-August 5, as part of NOAA's Ocean Explorer Program.

More cruise information: 2002 Cruise Participants Site

 
July 2002
S M T W T F S
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7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31 .    
->Go to Big Calendar
(annotated calendar with headlines from the day's events.)
 
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  Science Summary      
 
  image of Bob Embley
Chief Scientist, Bob Embley.
 

 

Robert Embley, Chief Scientist

Science Summary for NeMO 2002

This year's expedition to NeMO at Axial Volcano was shorter than in previous years and so it was particularly intensive with as much science as possible packed into each day on site. We made 4 ROPOS dives, with a total of 69 hours of bottom time, and a total of 58 samples collected. Between ROPOS dives we deployed or recovered 6 oceanographic moorings, deployed or recovered 4 seafloor instrument packages, and conducted 5 CTD casts. One of our main goals at Axial Volcano this year was to install an upgraded NeMO Net system. NeMO Net is a state-of-the-art communication system that links desktop computers on land to instruments on the seafloor. A surface buoy is the heart of the system, which communicates with shore by satellite and to the seafloor via an acoustic link. We have been incrementally developing the capabilities of NeMO Net over the last 3 years, starting with one-way communication from a single camera, to this year's system which has two-way communication with three independent instruments on the seafloor. The 3 instruments include two interactive fluid samplers (called RAS's) and one bottom pressure recorder (BPR). The whole idea of NeMO Net is to be able to get information from the seafloor in order to be able to know when a volcanic event is occurring at Axial Volcano and then be able to respond to such an event immediately, without having to wait until a ship can get out to the site.

More...

 
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  Teacher Logbook      
 
  image of NeMO Net buoy
The NeMO Net buoy is deployed over the side of the Thompson. The deployment was the final task of the NeMO 2002 cruise.
 

 

Kimberly Williams - July 23, 2002

NeMO NET is deployed

While we waited for the weather to calm down, the Chief Scientist made the tough decision regarding the work we could safely undertake in the mean time. Despite the rough seas, we were able to retrieve and deploy a few moorings that will give us information about the water, temperature, and currents in the area where they are positioned.

More...

 
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This brings to a close our expedition to Axial Volcano and NeMO for this year. From here we will be transferring a few personnel and then heading for Explorer Ridge where we will be making more dives with ROPOS and exploring a little known hydrothermal vent site named Magic Mountain. If you'd like to follow our adventures there during July 24th through August 5th, please link to NOAA's Ocean Exploration web site:

http://oceanexplorer.noaa.gov/explorations/02fire/

Thanks for your interest in our work at NeMO this year!

 
     
NeMO 2002 |About NeMO | Expedition | NeMO Net 2002 | Explorer | Dive! | Education
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