Atlantic Meridional Transect (AMT)

CTD and underway data (AMT)

AMT4 cruise track
AMT4 cruise track ©

The Conductivity, Temperature, Depth (CTD) profiles, and continuous meteorological and oceanographic core measurements (underway data) from all cruises for the Atlantic Meridional Transect (AMT) programme are available online in a fixed ASCII (CSV) format as specified below.

The data are freely available to AMT participants and to the wider scientific community for the purposes of research.

The files available online reflect the current status of data processing at BODC. The data and associated documentation (providing information about sensors, quality control, calibrations and processing status) can be downloaded directly from our web site.

Each time modifications are made by BODC, these files are updated and changes are noted in the documentation and the 'date modified' will be changed.

The AMT community will be notified by email but external users will need to periodically check the tables below to ensure that they have the most up-to-date version of the data.

To download AMT data, you are required to be a registered BODC web user. If you have already registered, please log in, alternatively please register to become a new user.

Proceed to download AMT CTD and underway data.

Data specification and status

CTD data

Specification

Status

Note — Hover over the additional parameters for an explanation of their meaning.

Cruise Date Casts Additional
parameters
View
document
Date modified
AMT17 Oct-Nov 2005 60 Second salinity channel Second temperature channel Calibrated fluorometer output as chlorophyll concentration Dissolved oxygen
AMT19 Oct-Nov 2009 120 Second salinity channel Second temperature channel Calibrated fluorometer output as chlorophyll concentration Downwelling irradiance from lightmeter output Attenuation coefficient from transmissometer output Dissolved oxygen

 

Underway data

Specification

Status

Cruise Date/Time Comments View
document
Date modified
AMT1 19/09/1995 14:29 - 25/10/1995 10:06  
AMT2 22/04/1996 12:10 - 22/05/1996 07:17  
AMT3 21/09/1996 12:16 - 25/10/1996 13:20  
AMT4 21/04/1997 12:07 - 27/05/1997 00:05  
AMT5 14/09/1997 04:00 - 17/10/1997 13:13  
AMT6B 05/04/1998 18:59 - 03/05/1998 14:09  
AMT6 15/05/1998 12:00 - 16/06/1998 08:41 Data warnings
AMT7 13/09/1998 16:00 - 25/10/1998 19:55  
AMT8 23/04/1999 18:51 - 07/06/1999 08:02  
AMT9 15/09/1999 08:06 - 12/10/1999 14:46  
AMT10 11/04/2000 12:01 - 07/05/2000 14:57  
AMT11 13/09/2000 18:09 - 11/10/2000 10:50  
AMT12 13/05/2003 12:24 - 15/06/2003 10:54  
AMT13 11/09/2003 07:07 - 13/10/2003 18:10  
AMT14 28/04/2004 00:00 - 31/05/2004 00:00  
AMT15 17/09/2004 13:08 - 29/10/2004 17:52  
AMT16 20/05/2005 12:00 - 28/06/2005 13:00  
AMT17 15/10/2005 08:00 - 26/11/2005 06:00  
AMT18 03/10/2008 00:00 - 09/11/2008 15:30  
AMT19 13/10/2009 12:12 - 30/11/2009 11:07  
AMT20 12/10/2010 08:40 - 22/11/2010 21:10  
AMT21 28/09/2011 08:07 - 11/11/2011 17:59  
AMT22 10/10/2012 08:00 - 20/11/2012 20:01  

Related BODC pages

Atlantic Meridional transect (AMT)     CTD profiles
Atlantic Meridional transect — Other data sets     BODC parameter dictionary
Data processing steps      

 

Atlantic Meridional Transect