The submitted material is intended to serve as an overview of the data
available from the Global Drifter Program which has grown out of the WOCE
Surface Velocity Program. This overview provides an accounting of the data
density, as well as estimates of the mean surface velocity field and the
variance about that mean on a 5 x 5 degree grid. The information is
grouped by region with a map for each quantity for each of the North
Atlantic, South Atlantic, Pacific and Indian Ocean. This should be
sufficient to decide, in a rough and ready way, how much data exists in a
region of particular interest.
The products are provided as html pages that can be viewed with a web
browser. Postscript files are also provided for those who might wish to
make high-quality copies. Also included is the "DAC World Data File" which
contains estimates of mean velocity, variance and number of observations
for the globe at a 5 x 5 degree resolution. The beginning of the latter
file also contains a brief description of the processing used to produce
these products.
We welcome feedback from workshop participants about how well these products
meet your needs.
Questions should be directed to me at:
or to Mayra Pazos at: