Subsurface Float DAC Functions and Operations
Overview
The purpose of the float DAC is to create a consolidated float data
set usable by scientists for statistical studies and incorporation
into ocean models. The intent is that the collected data be the best
and cleanest version available. To that end, the DAC carefully checks
each data set. Data are transferred to WDC-A as well as being archived
and made available by the DAC.
The Float DAC has received most major historical data sets, checked
them and transferred them to WDC-A. The DAC plans to continue as-
sembling historical data, at the same time WOCE data sets are coming
in. When data is acquired by the DAC, an attempt is made to also
acquire background information (data reports, e.g.) and a list of
references.
Many WOCE subsurface floats have been launched, some are being tracked,
and others have been submitted to the DAC with future release dates.
All available WOCE float data is included on this CD-ROM.
WOCE non-acoustic Autonomous Lagrangian Circulation Explorer (ALACE)
float data for the Pacific (thru December 1996) and for the Drake
Passage are included on this CD-ROM. The DAC receives yearly up-
dates of ALACE data, and releases them as permitted.
The DAC issues summary reports, tables, and figures, which describe
the assembled float data at roughly yearly intervals. Some of these
are available on the Worldwide Web at http://wfdac.whoi.edu or at
OCEANIC (http://www.cms.udel.edu).
Data Processing
The Float DAC expects to receive "final archive versions" of data
already quality-controlled and calibrated by each PI. Some checks
will be made to see that the obtained data look reasonable. Exten-
sive quality control checks will not be performed. PI's will be
notified of any anomalous data and these will be flagged till cor-
rected.
Data Availability
Float data will be treated like all other WOCE data (proprietary
for two years, public thereafter) except that the two years starts
when the floats have stopped working. The Float community has a-
dopted a pragmatic approach of immediate release to those making
sensible requests, with the publication rights remaining with the
PI's during the proprietary period described above. The DAC is
honoring the release dates requested by data contributors.
Access to Float Data
The released data files are available as compressed (zip) files
in either NetCDF (WOCE) or an ASCII format (historic) from
http://wfdac.whoi.edu.
Scientists who wish to obtain the newer float data to incorporate
with their own data or models should contact the Principal Inves-
tigators (see Table of Data above or the inventory in the float sec-
tion of the WOCE pages under Data Information Sources).
If you use data from this archive, please reference the Principal
Investigators.