[thredds] geospaticalCoverage metadata information

Ethan Davis edavis at unidata.ucar.edu
Tue Mar 11 15:23:14 MDT 2008


Hi Roland,

I haven't been able to reproduce this yet but I've been working with our 
4.0 code, oops. I'll switch over to our 3.16 code. In the mean time, can 
you send me your config catalog so I can make sure I'm breaking things 
properly?

Thanks,

Ethan

Roland Schweitzer wrote:
> Hi,
>
> I have a sequence of netCDF files with lat/lon defined as:
>
> float lat(lat) ;
>                 lat:units = "degrees_north" ;
>                 lat:actual_range = 90.f, -90.f ;
>                 lat:long_name = "Latitude" ;
>         float lon(lon) ;
>                 lon:units = "degrees_east" ;
>                 lon:long_name = "Longitude" ;
>                 lon:actual_range = 0.f, 357.5f ;
>
> ...
>
> data:
>
>  lat = 90, 87.5, 85, 82.5, 80, 77.5, 75, 72.5, 70, 67.5, 65, 62.5, 60, 
> 57.5,
>     55, 52.5, 50, 47.5, 45, 42.5, 40, 37.5, 35, 32.5, 30, 27.5, 25, 
> 22.5, 20,
>     17.5, 15, 12.5, 10, 7.5, 5, 2.5, 0, -2.5, -5, -7.5, -10, -12.5, -15,
>     -17.5, -20, -22.5, -25, -27.5, -30, -32.5, -35, -37.5, -40, -42.5, 
> -45,
>     -47.5, -50, -52.5, -55, -57.5, -60, -62.5, -65, -67.5, -70, -72.5, 
> -75,
>     -77.5, -80, -82.5, -85, -87.5, -90 ;
>
>  lon = 0, 2.5, 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 27.5, 30, 
> 32.5, 35,
>     37.5, 40, 42.5, 45, 47.5, 50, 52.5, 55, 57.5, 60, 62.5, 65, 67.5, 70,
>     72.5, 75, 77.5, 80, 82.5, 85, 87.5, 90, 92.5, 95, 97.5, 100, 
> 102.5, 105,
>     107.5, 110, 112.5, 115, 117.5, 120, 122.5, 125, 127.5, 130, 132.5, 
> 135,
>     137.5, 140, 142.5, 145, 147.5, 150, 152.5, 155, 157.5, 160, 162.5, 
> 165,
>     167.5, 170, 172.5, 175, 177.5, 180, 182.5, 185, 187.5, 190, 192.5, 
> 195,
>     197.5, 200, 202.5, 205, 207.5, 210, 212.5, 215, 217.5, 220, 222.5, 
> 225,
>     227.5, 230, 232.5, 235, 237.5, 240, 242.5, 245, 247.5, 250, 252.5, 
> 255,
>     257.5, 260, 262.5, 265, 267.5, 270, 272.5, 275, 277.5, 280, 282.5, 
> 285,
>     287.5, 290, 292.5, 295, 297.5, 300, 302.5, 305, 307.5, 310, 312.5, 
> 315,
>     317.5, 320, 322.5, 325, 327.5, 330, 332.5, 335, 337.5, 340, 342.5, 
> 345,
>     347.5, 350, 352.5, 355, 357.5 ;
>
> I create an aggregation with these files and include the following in 
> a <metadata> element.
>
> <geospatialCoverage>
>                                                 <northsouth>
>                                                         <start>-90</start>
>                                                         <size>73</size>
>                                                         
> <resolution>2.5</resolution>
>                                                         
> <units>degrees_north</units>
>                                                 </northsouth>
>                                                 <eastwest>
>                                                         <start>0</start>
>                                                         <size>144</size>
>                                                         
> <resolution>2.5</resolution>
>                                                         
> <units>degrees_east</units>
>                                                 </eastwest>
>  </geospatialCoverage>
>
> When I look at the HTML of the THREDDS catalog using TDS 
> (Implementation-Version: 3.16.32) I get this:
>
>
>       GeospatialCoverage:
>
>     * / Longitude: / 0.0 to 144.0 Resolution=2.5 degrees_east
>     * / Latitude: / -90.0 to -17.0 Resolution=2.5 degrees_north
>
> Have I misinterpreted the documentation, is this a bug in TDS, or what?
>
> Thanks,
> Roland
>
>
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-- 
Ethan R. Davis                                Telephone: (303) 497-8155
Software Engineer                             Fax:       (303) 497-8690
UCAR Unidata Program Center                   E-mail:    edavis at ucar.edu
P.O. Box 3000
Boulder, CO  80307-3000                       http://www.unidata.ucar.edu/
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