World Ocean Circulation Experiment
  Data Information Unit (WDIU)
 
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Data Information Unit
 
Data Summaries
    Bathymetry
    Current Meters
    Drifters
    Sub Surface Floats
    Hydrography
    Profiling Floats
    Satellite Sea Level
    Satellite Sea Surface Temperature
    Satellite Surface Winds
    Sea Level - Delayed Mode
    Sea Level - Fast Return
    Sea Surface Salinity
    Shipboard ADCP
    Surface Meteorology
    Upper Ocean Thermal
 

  Data Sets on WOCE Data DVD Disk 1:

  Current Meters
  Drifters
  Sub Surface Floats
  Hydrography
  Profiling Floats
  Sea Surface Salinity
  Shipboard ADCP
  Air-Sea Fluxes
  Surface Meteorology
  Upper Ocean Thermal

 Data Sets on WOCE Data DVD Disk 2:

  Bathymetry
  Satellite Sea Level
  Satellite Sea Surface Temperature
  Satellite Surface Winds
  Sea Level - Delayed Mode
  Sea Level - Fast Return

 
  Upper Ocean Thermal
  Atlantic Details   Indian Details   Pacific Details   Southern Details
  Program   Program   Program  
Maps XBT Lines Maps XBT Lines Maps XBT Lines  
 
Maps Global XBT Lines
 Go to DVD  Go to the Upper Ocean Thermal Directory on this DVD

A global network of commercial ships takes upper ocean thermal measurements (low density, 2-4 observations/day) using Expendable Bathythermographs (XBTs). These, together with observations by fishing and research vessels,form a global data set of temperature (and sometimes salinity) profiles in the top kilometer of the ocean. Some data are transmitted from the vessels by satellites and made available to users within 30 days of collection. Higher depth resolution profiles were submitted to the DAC and made available to users 1 year or more after collection. Additional profiles contributed from profiling floats and CTDs as well as instrumentation on moored and drifting buoys are also included.

Some XBT sections are occupied quarterly at a higher rate of spatial sampling. These High Density (one observation per 50km) sections can determine the mean, seasonal cycle, and eddy statistics of temperature andgeostrophic shear and transport fields, and obtain some measure of interannual variability.

The Upper Ocean Thermal DAC consisted of several centres which together provide a globally consistent data set as part of the Global
Temperature-Salinity Profile Project (GTSPP). There are two levels of quality control available to users; checks performed by national data centres (US National Oceanographic Data Center (NODC) and Marine Environmental Data Service (MEDS), Canada), and scientific quality controlon a profile-by-profile basis performed by 3 regional centres (AOML, Scripps, JAFOOS). The data collected during the WOCE period, and data collected since then, can be accessed from US NODC which acts as the GTSPP distribution facility.