Andrea,
Writing a wrapper around GrADS to use that as a back end for LAS would
be MUCH!!! more work than writing a driver for OPeNDAP
sequences. If it's not difficult for you to ingest your data into
MySQL in the format described below, that would probably be the easiest
solution.
http://ferret.pmel.noaa.gov/LASdoc/serve/cache/21.html
-- Jon
Andrea Fey wrote:
Thanks for
the suggestion. I have considered this as an option, but have not yet
looked into it in detail. Can anyone point to an example of, say, a
GrADS-based LAS site? Right now I'm also exploring using a
database-served data set instead of the GDS.
Andrea
Peter Cornillon wrote:
I'm not an LAS expert, but I think that the
idea is that you can run whatever processing engine under LAS.
Normally, Ferret is used, but this is not a requirement. This means
that you could, for example, Matlab which does handle sequences; i.e.,
this might be viewed as an OPeNDAP sequence driver for LAS.
Peter
On Jun 27, 2005, at 12:58 PM, Andrea Fey wrote:
Thanks, Jon. I understood I'd need to write
a driver for LAS but did not realize it was a Ferret issue. I hoped
using the data in Ferret would give me a starting point for developing
the driver.
Have any of you LAS users developed an OPeNDAP sequence driver?
Andrea
Jonathan S Callahan wrote:
Andrea,
OPeNDAP sequences are not currently supported in Ferret. There is a
basic division in the OPeNDAP world between Sequence data (potentially
nested, indeterminate length arrays) and Grid data (1D-4D constant
length arrays). ...
You might consider posting again to the LAS Users list asking if
anyone else has written an OPeNDAP sequence driver for LAS.
-- Jon
Andrea Fey wrote:
I having trouble utilizing a station
data set in Ferret. The dataset I'd like to open is large:
http://nomads.ncdc.noaa.gov:9091/dods/IGRA_MONTHLY_RAOBS/igramon; a
single-station link is here:
http://nomads.ncdc.noaa.gov:9091/dods/IGRA_STATION_RAOBS/425/
igra.72208. I can open both of these, but when I "show data" there is
nothing listed.
I can open both of these in GrADS. My eventual goal is to add this
data to a LAS server, and when I run a script (addGDS.pl) against
either data set I get the following error message: DODS sequence not
supported at dds.y line 5.
Could this be a metadata issue even though the data can be pulled into
GrADS? Any other ideas?
Thanks.
Andrea
--
Andrea Fey
NOMADS Project Intern
Andrea.Fey@noaa.gov
828-271-4474
--
Peter Cornillon
Graduate School of Oceanography - Telephone: (401) 874-6283
University of Rhode Island - Fax:
(401) 874-6728
Narragansett, RI 02882 - E-mail:
pcornillon@gso.uri.edu
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