[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[LibCF #QMO-280170]: libcf can't yet deliver geospatial coordinates from an ocean_s model, can it?

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [LibCF #QMO-280170]: libcf can't yet deliver geospatial coordinates from an ocean_s model, can it?
  • Date: Thu, 01 Oct 2009 14:00:12 -0600
Hi Rich,

> Can libCF return the geospatial coordinates (z,t,lon,lat) associated
> with a hyperslab of data  from a structured grid 4D ocean model with
> curvilinear horizontal coordinates and stretched vertical coordinates?
> 
> e.g. 
> <http://coast-enviro.er.usgs.gov/cgi-bin/nph-dods/models/test/bora_feb.nc.html>
> 
> I glanced at the documentation and saw some stuff for defining and
> inquiring, but not for reading.

No, sorry, that capability is in the plans for libcf, but it hasn't yet been
implemented.  Our libcf guru, Ed, will give a talk next week at the GO-ESSP
meeting on what libcf can do now and what is planned for the next year.

> We have an experiment coming up where the ocean glider pilots would
> like to fly their gliders through the latest ocean model forecasts to
> figure out how to get their vehicles from point A to point B in the
> presence of a complex ocean current field.    And although we have a
> nice solution for them using Matlab and the NetCDF-Java library, one
> of the glider groups uses C++, not Matlab or Java.

Implementing an F90 interface to libcf has been a higher priority lately, due
to requests from some modelers.  Handling curvilinear coordinates sounds like
something we could get some help implementing from OOI-CI, as they have
informally mentioned developing some useful capabilities we both need 
rather than supplying resources directly ...

--Russ



Russ Rew                                         UCAR Unidata Program
address@hidden                     http://www.unidata.ucar.edu



Ticket Details
===================
Ticket ID: QMO-280170
Department: Support LibCF
Priority: Urgent
Status: Closed