Re: [thredds] geospaticalCoverage metadata information

• To: Roland Schweitzer <Roland.Schweitzer@xxxxxxxx>
• Subject: Re: [thredds] geospaticalCoverage metadata information
• From: Ethan Davis <edavis@xxxxxxxxxxxxxxxx>
• Date: Tue, 11 Mar 2008 15:23:14 -0600

Hi Roland,

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@xxxxxxxx
P.O. Box 3000
Boulder, CO  80307-3000                       http://www.unidata.ucar.edu/
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