Opened 7 years ago

Closed 7 years ago

#551 closed upgrade (Done)

IMPORTANT: Major overhault of scripts on the ROMS Matlab repository

Reported by: arango Owned by: arango
Priority: major Milestone: Matlab Processing Scripts
Component: Matlab Version: 3.6
Keywords: Cc:

Description

I have been working on a major overhaul of Matlab scripts and tools in the ROMS repository for several weeks. Since all the data in ROMS is managed with NetCDF files, some of these scripts use a NetCDF interface to Matlab to process the data. There are several interfaces for Matlab available from third parties. The most widely used interfaces are MEXNC and SNCTOOLS.

However, starting with Matlab version 2012a, released on Feb 9, 2012, the native interface to NetCDF is the preferred method for processing NetCDF data in the scripts distributed in the ROMS repository matlab and described here. The native interface was introduced in Matlab version 2008b for NetCDF-3 type files. The NetCDF-4 support started in version 2010b. The support for HDF5 files was completed in version 2011a. The OpenDAP support began in version 2012a. If your Matlab version is older than 2008b, we highly recommend that you update to the newest version. However, in the basic generic scripts we have switches for older versions to activate either the MEXNC interface for standard NetCDF files and the SNCTOOLS interface to process NetCDF files on an OpenDAP server.

Nesting Scripts:

This update also includes several new scripts to process ROMS nesting contact regions and contact points. The contact points are processed outside of ROMS and all the connectivity within nested grids is read from an input NetCDF file. This facilitates the configuration of various grid Sub-Classes. It tremendously simplifies the processing of such points in parallel computations. It also gives the user full editing control of the contact points. The contact points need to be set-up once for a particular application.

The information about these new scripts is very technical and difficult to explain with plain words. We need definitions, equations, and a lot of diagrams to explain and illustrate the complexity of ROMS nesting capabilities. Therefore, we decided to put all that information in WikiROMS instead of a very long message in this forum. In particular, we added two new menus to the documentation portal:

Nested Grids

Matlab Scripts

Change History (1)

comment:1 Changed 7 years ago by arango

  • Resolution set to Done
  • Status changed from new to closed
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