[Geoserver-devel] [JIRA] (GEOS-8020) NetCDF support two-dimensional variable

GeoServer GeoServer Developer
1

Niels Charlier created an issue

GeoServer / New FeatureGEOS-8020

NetCDF support two-dimensional variable

Issue Type:

New FeatureNew Feature

Assignee:

Niels Charlier

Components:

NetCDF

Created:

06/Mar/17 1:18 PM

Priority:

MediumMedium

Reporter:

Niels Charlier

We would like to provide some support for 2D coordinate variables in NetCDF, in particular in aggregations.

An example use case: NC files with different time values being aggregated over runtime.

The idea is not to provide support for 2D coordinates in geotools, but to expose the 2D coordinate as a regular coordinate to geotools/geoserver.

Some of the expected behaviour (using the example of a 2D time over runtime):

  • In the GetCapabilities, all possible time values are listed (no value is mentioned twice of course, so a unique flat list is composed from the 2D value table).
  • The user may of course specify a valid combination of a time and a runtime in a WMS/WCS request to get the appropriate data. An invalid combination returns no data.
  • NetCDF can be configured to retrieve the maximum or minimum runtime RELATIVE to a provided time in the request. This requires geoserver to configure the runtime dimension default value as “built-in”.

In addition, we want to support an auxiliary WFS store that exposes the index in order to list all possible time/runtime combinations, since this cannot be retrieved from the GetCapabilities.

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