The Joint WMO-IOC Technical Commission for Oceanography and Marine Meteorology

Access to data by network or data programme

Observing network or
Data programme / variables
Data system and access

Surface drifting buoys
coordinated by the JCOMM Data Buoy Cooperation Panel DBCP


  • sea surface temperature SST
  • sea level pressure SLP
  • near-surface ocean currents

The Responsible National Oceanographic Data Centre for Drifting Duoys (RNODC/DB) is operated by ISDM (Canada). RNODC/DB routinely collects GTS FM-18 BUOY reports from the GTS. The BUOY reports go through an automatic decoding system every day and failed reports go to a recovery file. This is reviewed daily to salvage what is possible. At the end of each month ISDM carries out Quality Control (QC) and updates to its archives. Daily files of non-QC data go to some users by ftp. Note ISDM has a version of a BUFR decoder for BUOY that is not yet in production.

ISDM also cooperates with the Global Drifter Program at AOML in Miami FL, USA to archive the delayed mode processing that they undertake. These data come to ISDM roughly annually. They are updated to archives and also made available through its web site.


Tropical moored arrays
coordinated by the JCOMM Data Buoy Cooperation Panel DBCP Tropical Implementation Panel TIP


  • surface meteorology
  • subsurface temperature
  • subsurface salinity
  • subsurface velocity

Specific web based data systems have been put in place for the TAO, TRITON, and PIRATA tropical moored buoy programmes. The operational TAO data system (tropical Pacific Ocean) is operated by the NOAA National Data Buoy Center NDBC (USA). The NOAA Pacific Marine and Environmental Laboratory PMEL (USA) also provides a separate data system, mainly for experimental and development purposes. Indian Ocean data can be obtained from the latter system as well. The Japan Agency for Marine-Earth Science and Technology JAMSTEC provides for the web based data system for the Triangle Trans Ocean Buoy Network (TRITON) moorings deployed in the western tropical Pacific Ocean and the eastern tropical Indian Ocean.

PMEL also provides for the web-based data system for the Pilot Research Moored Array in the Atlantic (PIRATA) and moorings in the tropical Indian Ocean.

Tropical Pacific Ocean

Tropical Atlantic Ocean

Tropical Indian Ocean


Global Temperature and Salinity Profile Program GTSPP
reporting to JCOMM via its Ship Observations Team


  • subsurface temperature profiles
  • subsurface salinity profiles

The GTSPP is an international programme under JCOMM that maintains a global ocean temperature and salinity resource with data that are both up-to-date and of the highest quality possible. Both real-time data transmitted over the GTS and delayed-mode data received by contribution countries are acquired and quality controlled by ISDM (Canada) and eventually incorporated into a continuously managed database maintained by the National Oceanographic Data Center NODC (USA).

ISDM assembles BATHY and TESAC GTS reports each day, and from daily files sent from Japan, USA, and Germany. Decodes, QC and updates to ISDM archives occur on Mondays, Wednesdays and Fridays. ISDM distributes all new or changed records to about 6 users on the same schedule through ftp.


Global Ocean Surface Underway Data Pilot Project GOSUD
reporting to JCOMM


  • sea surface temperature
  • sea surface salinity

GOSUD is an international programme for the collection, data processing, archiving, and real-time and delayed mode distribution of Sea Surface Salinity (SSS) and other variables collected underway, by research vessels and ship of opportunity. Thanks to a cooperation between ISDM (Canada) and IFREMER (France), TRACKOB data from the GTS go through automatic decodes, quality control and updates every day. Messages failing the decode are diverted to a recovery file for manual checks, done daily, to see what can be salvaged. Files are ftp'ed to the Global Data Assembly Centers (GDAC) for GOSUD in France and mirrored at the GDAC for GOSUD in the USA.

GOSUD data are available from the following GDACs:

GDAC at the US National Oceanographic Data Center:



Tide gauges
coordinated by the JCOMM Global Sea Level Observing System GLOSS


  • sea level

GLOSS oversees the operation and collection and management of data from a global network of tide gauge stations, in support of a variety of operational activities and global climate studies. The system is coordinated by the GLOSS Group of Experts, a component body of JCOMM. Amongst other things, GLOSS operates a GLOSS Core Network (GCN) as well as regional GLOSS networks. More information on GLOSS »

The GLOSS Fast Data Center at the University of Hawai'i Sea Level Center provides for FAST sea level data from GLOSS sites (i.e. within a week), as well as a research and testing real-time data system:


Argo profiling floats
coordinated by the Argo Project Office and the Argo Information Centre at JCOMMOPS


  • subsurface temperature profiles
  • subsurface salinity profiles
  • subsurface deep currents (drift)

In addition to GTS data distribution, the Argo Project has put in place a specific real-time data delivery system with two global centres: (i) the Coriolis data centre (France), and (ii) the US GODAE server. Both centres mirror each other.




OceanSITES reference time series stations
coordinated by the OceanSITES team


  • air-sea interactions
  • full-depth monitoring of many variables

OceanSITES is developing a specific data system and standards. Data is available from the


Ocean carbon
coordinated by the International Ocean Carbon Coordination Project IOCCP

coordinating measurements of:

  • repeat ship-based hydrography
  • underway CO2
  • carbon time series
  • ocean colour


The IOCCP promotes the development of a global network of ocean carbon observations for research through technical coordination and communications services, international agreements on standards and methods, and advocacy and links to the global observing systems.

Hosted by
UNESCO/IOC Project Office for IODE Oostende, Belgium