Ocean Circulation Experiment
Information Unit (WDIU)
to the Satellite Sea Level Directory on this DVD
to the Satellite Sea Surface Temperature Directory on this DVD
to the Satellite Surface Winds Directory on this DVD
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.