Ocean Circulation Experiment
Information Unit (WDIU)
The Satellite Directories are on DVD Disk 2
At the very heart of WOCE were the global measurements made by satellites.
The primary interest for WOCE lay with satellite altimetry and its
associated geophysical variables of sea level variability and wave
height. There were 3 altimeters operating during WOCE, the French
and USA satellite TOPEX/POSEIDON (since August 1992), and the European
Space Agency satellites ERS-1 (since late 1991) and ERS-2 (since
April 1995). In addition the US GEOSAT mission operated just prior
to the WOCE field programme. Also of interest are wind speed from
scatterometers (the NASA scatterometer NSCAT, and ERS-1 and ERS-2),
sea surface temperature (the USA AVHRR or Advance Very High Resolution
Radiometer) and water vapour content (TOPEX/POSEIDON and the US
Special Sensor Microwave Imager or SSMI).
are managed by a variety of agencies and data centres, so there
are no WOCE satellite DACs. However, the agencies involved have
provided for WOCE all the functions of WOCE satellite DACs
and have contributed to Version 3.0 of the WOCE Global data set.
Oceanography DAAC at JPL/NASA:
0.5 deg sea surface height data and browse images over
the period 10/1992 to 12/1999 and also 1x1 deg x 10day averaged
grids, with no missing data (added by popular request).
- SST data
at .5 and 1 degree resolution over 5 days from 1990 through 1999.
The data were derived from the 5-channel Advanced Very High Resolution
Radiometer (AVHRR) instrument on board the NOAA -7, -9, -11 and
-14 polar orbiting satellites, using the 'NOAA/NASA Pathfinder
( IFREMER/France and ESA):
winds measured by four satellite microwave scatterometers
(AMI aboard ERS-1 and ERS-2, NSCAT aboard ADEOS-1, and QUIKSCAT),
objectively analyzed into weekly and monthly fields, as well as
monthly climatological averages from 1991 through 2000. This includes
several products, surface wind stress, curl and divergence, etc.