Accessing CDIP Data: Frequently Asked Questions
- How can I obtain your most recent data automatically?
The recommended access to CDIP's directional buoy datasets is via our
CDIP THREDDS data access documentation
Note that the THREDDS server does not hold data from CDIP's non-buoy
stations. The only currently active non-buoy station is the pressure
sensor at Scripps Pier, but historically CDIP has operated many non-buoy
Another easy way to obtain our data automatically is to scrape one of
our data access URLs. A number of useful scripts are maintained
on the CDIP site for this purpose. For example, the command to obtain
our latest parameter file data for station 029 using the lynx web browser
lynx -dump http://cdip.ucsd.edu/data_access/justdar.cdip?029+pm
The most powerful access script that can be invoked is justdar.cdip, as in
the address above. It allows access to all CDIP data types - sp, pm, xy,
de, etc. - over any specified time period. For more details, try the
Data from the newest sensor used by CDIP, the Datawell DWR4/ACM buoy, are
not available using justdar. Instead, they can be accessed via the
THREDDS server mentioned above, or by using the ndar script:
The ndar script provides access to all data from Datawell Waverider buoys,
as found on the THREDDS server.
Other useful scripts include synopsis.cdip, synopsis_pm.cdip and
synopsis_9band.cdip, which provide a parameter summaries and a 9-band
summary of all stations' latest data. (The difference between synopsis.cdip
and synopsis_pm.cdip is that the first script returns 9-band Tp and
Dp values, while the second script gives full-spectrum Tp and Dp values.
A script designed for SCCOOS includes the same values as synopsis.cdip
above, but they are arranged in an easily parsed, tab-delimited
format that includes the stations' current locations and depths.
For details of the formatting, try the help option:
- Do you have a mobile site or pages I can view on my phone, PDA, etc?
CDIP's mobile site is now online