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f3218a2e2c
re: Issue https://github.com/Unidata/netcdf-c/issues/1848 The existing Virtual File Driver built to support byte-range read-only file access is quite old. It turns out to be extremely slow (reason unknown at the moment). Starting with HDF5 1.10.6, the HDF5 library has its own version of such a file driver. The HDF5 developers have better knowledge about building such a driver and what incantations are needed to get good performance. This PR modifies the byte-range code in hdf5open.c so that if the HDF5 file driver is available, then it is used in preference to the one written by the Netcdf group. Misc. Other Changes: 1. Moved all of nc4print code to ncdump to keep appveyor quiet.
85 lines
3.0 KiB
Plaintext
85 lines
3.0 KiB
Plaintext
netcdf METAR_20170910_0000 {
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dimensions:
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sample = UNLIMITED ; // (12538 currently)
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station = UNLIMITED ; // (4606 currently)
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variables:
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float lon(station) ;
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lon:long_name = "longitude" ;
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lon:units = "degrees_east" ;
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lon:standard_name = "longitude" ;
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float lat(station) ;
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lat:long_name = "latitude" ;
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lat:units = "degrees_north" ;
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lat:standard_name = "latitude" ;
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float alt(station) ;
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alt:long_name = "vertical distance above mean sea level" ;
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alt:units = "meter" ;
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alt:positive = "up" ;
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alt:standard_name = "surface_altitude" ;
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string stid(station) ;
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stid:long_name = "station id" ;
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stid:standard_name = "platform_id" ;
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stid:cf_role = "timeseries_id" ;
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string name(station) ;
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name:long_name = "station name" ;
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name:standard_name = "platform_name" ;
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int index(sample) ;
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index:instance_dimension = "station" ;
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int time(sample) ;
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time:long_name = "time of observation" ;
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time:units = "minutes since 1970-1-1 00:00:00" ;
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float altimeter_setting(sample) ;
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altimeter_setting:units = "millibars" ;
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altimeter_setting:coordinates = "lon lat alt time stid" ;
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altimeter_setting:missing_value = -999.f ;
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float dewpoint(sample) ;
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dewpoint:units = "degC" ;
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dewpoint:standard_name = "dew_point_temperature" ;
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dewpoint:coordinates = "lon lat alt time stid" ;
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dewpoint:missing_value = -999.f ;
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float sea_level_pressure(sample) ;
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sea_level_pressure:units = "millibars" ;
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sea_level_pressure:standard_name = "air_pressure_at_sea_level" ;
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sea_level_pressure:coordinates = "lon lat alt time stid" ;
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sea_level_pressure:missing_value = -999.f ;
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float sky_coverage(sample) ;
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sky_coverage:units = "percent" ;
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sky_coverage:standard_name = "cloud_area_fraction" ;
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sky_coverage:coordinates = "lon lat alt time stid" ;
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sky_coverage:missing_value = -999.f ;
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float temperature(sample) ;
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temperature:units = "degC" ;
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temperature:standard_name = "air_temperature" ;
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temperature:coordinates = "lon lat alt time stid" ;
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temperature:missing_value = -999.f ;
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float visibility(sample) ;
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visibility:units = "meters" ;
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visibility:standard_name = "visibility_in_air" ;
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visibility:coordinates = "lon lat alt time stid" ;
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visibility:missing_value = -999.f ;
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float wind_direction(sample) ;
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wind_direction:units = "degrees" ;
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wind_direction:standard_name = "wind_from_direction" ;
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wind_direction:coordinates = "lon lat alt time stid" ;
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wind_direction:missing_value = -999.f ;
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float wind_speed(sample) ;
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wind_speed:units = "m/s" ;
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wind_speed:standard_name = "wind_speed" ;
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wind_speed:coordinates = "lon lat alt time stid" ;
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wind_speed:missing_value = -999.f ;
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float wind_gust(sample) ;
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wind_gust:units = "m/s" ;
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wind_gust:standard_name = "wind_speed_of_gust" ;
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wind_gust:coordinates = "lon lat alt time stid" ;
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wind_gust:missing_value = -999.f ;
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string report(sample) ;
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report:coordinates = "lon lat alt time stid" ;
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// global attributes:
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:featureType = "timeSeries" ;
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:Conventions = "CF-1.7" ;
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:institution = "UCAR/Unidata" ;
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:source = "METAR Reports" ;
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:title = "Reformatted METAR observations" ;
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}
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