climode

As part of the CLIVAR Mode Water Dynamics Experiment (CLIMODE; see http://climode.org) we are deploying acoustically-tracked, bobbing, profiling floats to study the formation and dispersal of eighteen degree water (EDW) in the subtropical Atlantic. The bobbers drift on the 18.5C temperature surface. Once every three days they bob vertically between the 17 and 20C isotherms to measure EDW thickness and stratification. Once every 15-30 days the bobbers collect a 1000m temperature profile before surfacing to transmit data via Service Argos. We anticipate the bobbers will operate for at least 18 months following deployment.

The figure below shows the most recent location of CLIMODE bobbers (numbered red crosses), their launch locations (green squares) and the array of sound source moorings used to track their movement (black circles). The yellow region indicates monthly-mean observations of the Gulf Stream north wall position since 1966 (courtesy Fisheries and Oceans Canada / MEDS)
 
 
The figures below summarize recent data transmitted by the CLIMODE bobbers. Click the small plot to see a larger version. One test float was deployed in late July 2005. Seven floats were deployed in November 2005, 13 floats in January 2006, and 5 floats in November 2006. The remaining floats will be deployed on cruises February and March 2007. The RAFOS tracking array will be recovered in November 2007.
 
Bobber
Position
Profiles
Contours
Temp & Press
Engineering
RAFOS TOA
37518
D: 28-Jul-2005
L: 09-Dec-2007
N: 21-Dec-2007
bobs: 280
38575
D: 04-Mar-2007
L: 27-Apr-2008
N: 27-May-2008
bobs: 130
38576
D: 14-Nov-2005
L: 02-May-2008
N: 01-Jun-2008
bobs: 260
38577
D: 15-Nov-2005
L: 13-Jul-2006
N: 12-Aug-2006
bobs: 80
38581
D: 16-Nov-2005
L: 04-May-2008
N: 03-Jun-2008
bobs: 290
38582
D: 17-Nov-2005
L: 06-Jan-2008
N: 05-Feb-2008
bobs: 250
38585
D: 18-Nov-2005
L: 06-May-2008
N: 05-Jun-2008
bobs: 300
38589
D: 21-Nov-2005
L: 09-May-2008
N: 08-Jun-2008
bobs: 300
38590
D: 22-Nov-2005
L: 11-Mar-2008
N: 10-Apr-2008
bobs: 280
38597
D: 24-Jan-2006
L: 13-May-2008
N: 12-Jun-2008
bobs: 250
38598
D: 22-Jan-2006
L: 11-May-2008
N: 10-Jun-2008
bobs: 270
38599
D: 24-Nov-2006
L: 17-Apr-2008
N: 17-May-2008
bobs: 170
38600
D: 24-Nov-2006
L: 17-Apr-2008
N: 17-May-2008
bobs: 170
38601
D: 25-Nov-2006
L: 18-Apr-2008
N: 18-May-2008
bobs: 170
38603
D: 29-Jan-2006
L: 18-Apr-2008
N: 18-May-2008
bobs: 240
38604
D: 19-Feb-2007
L: 14-May-2008
N: 13-Jun-2008
bobs: 120
38605
D: 25-Jan-2006
L: 14-Apr-2008
N: 14-May-2008
bobs: 270
38608
D: 27-Nov-2006
L: 20-Apr-2008
N: 20-May-2008
bobs: 170
39060
D: 25-Jan-2006
L: 14-May-2008
N: 13-Jun-2008
bobs: 250
39448
D: 25-Jan-2006
L: 14-May-2008
N: 13-Jun-2008
bobs: 250
39449
D: 23-Jan-2006
L: 19-May-2007
N: 18-Jun-2007
bobs: 160
39470
D: 25-Feb-2007
L: 20-Apr-2008
N: 20-May-2008
bobs: 130
39471
D: 27-Jan-2006
L: 16-Apr-2008
N: 16-May-2008
bobs: 260
39472
D: 28-Jan-2006
L: 18-Jan-2008
N: 17-Feb-2008
bobs: 240
39473
D: 26-Feb-2007
L: 21-Apr-2008
N: 21-May-2008
bobs: 130
39474
D: 28-Nov-2006
L: 21-Apr-2008
N: 21-May-2008
bobs: 170
39475
D: 22-Jan-2006
L: 11-May-2008
N: 10-Jun-2008
bobs: 280
39476
D: 20-Jan-2006
L: 09-May-2008
N: 21-May-2008
bobs: 276
39477
D: 03-Mar-2007
L: 27-Apr-2008
N: 27-May-2008
bobs: 140
39720
D: 13-Mar-2007
L: 06-May-2008
N: 05-Jun-2008
bobs: 140
39721
D: 24-Jan-2006
L: 13-Apr-2008
N: 13-May-2008
bobs: 250
39722
D: 27-Jan-2006
L: 16-Apr-2008
N: 16-May-2008
bobs: 240
39726
D: 19-Mar-2007
L: 12-May-2008
N: 11-Jun-2008
bobs: 140
39729
D: 04-Mar-2007
L: 27-Apr-2008
N: 27-May-2008
bobs: 130
39733
D: 13-Mar-2007
L: 06-May-2008
N: 05-Jun-2008
bobs: 140
39736
D: 03-Mar-2007
L: 26-Apr-2008
N: 26-May-2008
bobs: 140
39763
D: 26-Feb-2007
L: 21-Apr-2008
N: 21-May-2008
bobs: 120
39765
D: 11-Feb-2007
L: 06-May-2008
N: 05-Jun-2008
bobs: 150
39766
D: 04-Mar-2007
L: 27-Apr-2008
N: 27-May-2008
bobs: 120
39793
D: 10-Feb-2007
L: 05-May-2008
N: 04-Jun-2008
bobs: 150

 

 

 

  
 
last updated on March 14, 2007