Changes between Version 13 and Version 14 of NetCDF_ProjectionTestingStatus


Ignore:
Timestamp:
Oct 23, 2011, 6:25:49 PM (12 years ago)
Author:
pds
Comment:

Updated about Polar Stereographic based on NARCCAP project.

Legend:

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  • NetCDF_ProjectionTestingStatus

    v13 v14  
    2121||M-2SP||Mercator||Yes||Yes||Yes*||18/10/11||Parameters appear correct, loads in NetCDF Java and IDV, but appears translated slightly (a few arc-minutes) from expected position||
    2222||Ortho||Orthographic||Yes||Yes||Yes||18/10/11||||
    23 ||PS||Polar stereographic||Yes*||No||No*||18/10/11||See projection comments below re parameters. File opens in NetCDF-Java IDV, but doesn't display as correctly georeferenced. ||
     23||PS||Polar stereographic||Yes*||Yes||No*||18/10/11||Believe we can translate parameters correctly, but see comments below. Translated file opens in NetCDF-Java IDV, but doesn't display as correctly georeferenced. ||
    2424||Rot Pole||Rotated pole||No||No||No||18/10/11||See projection comments below||
    2525||St||Stereographic||Yes||Yes||Yes||18/10/11||||
    … …  
    3636 * LCC : The OGC WKT 'Lambert_Conformal_Conic_2SP' maps clearly to LCC in CF-1 with 2 std parallels. The CF-1 spec claims that a 1SP version can be used, but it doesn't include a 'scale_factor' as does the OGC WKT 'Lambert_Conformal_Conic_1SP'. Is mapping std_parallel_1 maps to latitude_of_origin and setting scale_factor=1 correct? (see bug #3324)
    3737 * CEA : The CF-1 conventions claim this can be encoded with a 'scale_factor_at_projection_origin' alternative to standard parallel - how would this conversion be done back from OGC WKT?
    38  * PS : This projection's parameters in CF-1 are quite unusual, and significantly different from http://www.remotesensing.org/geotiff/proj_list/polar_stereographic.html. In particular finding a CF-1 equivalent for 'latitude of natural origin' is proving difficult.
     38 * PS : This projection's parameters in CF-1 are significantly different from http://www.remotesensing.org/geotiff/proj_list/polar_stereographic.html. In particular the CF-1 equivalent for 'latitude of natural origin' seems to be 'standard_parallel'. Note: we have verified the current approach we take to mapping is the same used by at least one other NetCDF CF-1 user in the UCAR NARCCAP project.
    3939 * Rot pole : Not able yet to test: as seems GDAL needs support of advanced proj4 strings that can handle rotated coord systems (see bug #4285).