netcdf olikazrmdM1.a1.20191220.000001 { dimensions: time = UNLIMITED ; // (30182 currently) range = 436 ; sweep = 1 ; string_length = 22 ; variables: int base_time ; base_time:string = "2019-12-20 00:00:00 0:00" ; base_time:long_name = "Base time in Epoch" ; base_time:units = "seconds since 1970-1-1 0:00:00 0:00" ; base_time:ancillary_variables = "time_offset" ; double time_offset(time) ; time_offset:long_name = "Time offset from base_time" ; time_offset:units = "seconds since 2019-12-20 00:00:00 0:00" ; time_offset:ancillary_variables = "base_time" ; double time(time) ; time:long_name = "Time offset from midnight" ; time:units = "seconds since 2019-12-20 00:00:00 0:00" ; time:standard_name = "time" ; time:calendar = "gregorian" ; time:comment = "times are relative to the volume start time" ; float range(range) ; range:long_name = "Range to measurement volume" ; range:units = "m" ; range:standard_name = "projection_range_coordinate" ; range:spacing_is_constant = "true" ; range:meters_to_center_of_first_gate = 737.6824f ; range:meters_between_gates = 29.97925f ; range:axis = "radial_range_coordinate" ; int sweep(sweep) ; sweep:long_name = "Sweep number" ; sweep:units = "count" ; sweep:comment = "coordinate variable definition that meets ARM standards" ; float azimuth(time) ; azimuth:long_name = "Azimuth angle from true north" ; azimuth:units = "degree" ; azimuth:standard_name = "ray_azimuth_angle" ; azimuth:axis = "radial_azimuth_coordinate" ; float elevation(time) ; elevation:long_name = "Elevation angle from horizontal plane" ; elevation:units = "degree" ; elevation:standard_name = "ray_elevation_angle" ; elevation:axis = "radial_elevation_coordinate" ; float reflectivity(time, range) ; reflectivity:long_name = "Equivalent reflectivity factor" ; reflectivity:units = "dBZ" ; reflectivity:standard_name = "equivalent_reflectivity_factor" ; reflectivity:_FillValue = -9999.f ; reflectivity:coordinates = "elevation azimuth range" ; float mean_doppler_velocity(time, range) ; mean_doppler_velocity:long_name = "Radial mean Doppler velocity, positive for motion away from the instrument" ; mean_doppler_velocity:units = "m/s" ; mean_doppler_velocity:standard_name = "radial_velocity_of_scatterers_away_from_instrument" ; mean_doppler_velocity:_FillValue = -9999.f ; mean_doppler_velocity:coordinates = "elevation azimuth range" ; float spectral_width(time, range) ; spectral_width:long_name = "Spectral width" ; spectral_width:units = "m/s" ; spectral_width:standard_name = "doppler_spectrum_width" ; spectral_width:_FillValue = -9999.f ; spectral_width:coordinates = "elevation azimuth range" ; float snr_copol(time, range) ; snr_copol:long_name = "Signal-to-noise ratio, copolar" ; snr_copol:units = "dB" ; snr_copol:standard_name = "signal_to_noise_ratio" ; snr_copol:_FillValue = -9999.f ; snr_copol:coordinates = "elevation azimuth range" ; float snr_xpol(time, range) ; snr_xpol:long_name = "Signal-to-noise ratio, cross-polar" ; snr_xpol:units = "dB" ; snr_xpol:standard_name = "signal_to_noise_ratio" ; snr_xpol:_FillValue = -9999.f ; snr_xpol:coordinates = "elevation azimuth range" ; float linear_depolarization_ratio(time, range) ; linear_depolarization_ratio:long_name = "Linear depolarization ratio" ; linear_depolarization_ratio:units = "dB" ; linear_depolarization_ratio:standard_name = "log_linear_depolarization_ratio_hv" ; linear_depolarization_ratio:_FillValue = -9999.f ; linear_depolarization_ratio:coordinates = "elevation azimuth range" ; float co_to_crosspol_correlation_coeff(time, range) ; co_to_crosspol_correlation_coeff:long_name = "Copol to cross-polar correlation coefficient (also known as rhocx)" ; co_to_crosspol_correlation_coeff:units = "unitless" ; co_to_crosspol_correlation_coeff:standard_name = "cross_correlation_ratio_hv" ; co_to_crosspol_correlation_coeff:_FillValue = -9999.f ; co_to_crosspol_correlation_coeff:coordinates = "elevation azimuth range" ; float prt(time) ; prt:long_name = "Pulse repetition time" ; prt:units = "s" ; prt:meta_group = "instrument_parameters" ; prt:standard_name = "pulse_repetition_time" ; float pulse_width(time) ; pulse_width:long_name = "Pulse width" ; pulse_width:units = "s" ; pulse_width:meta_group = "instrument_parameters" ; float nyquist_velocity(time) ; nyquist_velocity:long_name = "Unambiguous Doppler velocity" ; nyquist_velocity:units = "m/s" ; nyquist_velocity:meta_group = "instrument_parameters" ; float unambiguous_range(time) ; unambiguous_range:long_name = "Unambiguous range" ; unambiguous_range:units = "m" ; unambiguous_range:meta_group = "instrument_parameters" ; int n_samples(time) ; n_samples:long_name = "Number of samples used to compute moments" ; n_samples:units = "unitless" ; n_samples:meta_group = "instrument_parameters" ; float frequency ; frequency:long_name = "Operating frequency" ; frequency:units = "Hz" ; frequency:meta_group = "instrument_parameters" ; int sweep_number(sweep) ; sweep_number:long_name = "Sweep number, zero-based count" ; sweep_number:units = "count" ; char sweep_mode(sweep, string_length) ; sweep_mode:long_name = "Scan mode for sweep" ; sweep_mode:units = "unitless" ; sweep_mode:comment = "possible values: possible values: sector, coplane, rhi, vertical_pointing, idle, azimuth_surveillance, elevation_surveillance, sunscan, pointing, manual_ppi, manual_rhi" ; float fixed_angle(sweep) ; fixed_angle:long_name = "Target angle for sweep" ; fixed_angle:units = "degree" ; int sweep_start_ray_index(sweep) ; sweep_start_ray_index:long_name = "Time index of first ray in sweep, 0-based" ; sweep_start_ray_index:units = "count" ; int sweep_end_ray_index(sweep) ; sweep_end_ray_index:long_name = "Time index of last ray in sweep, 0-based" ; sweep_end_ray_index:units = "count" ; float radar_beam_width_h ; radar_beam_width_h:long_name = "Half-power radar beam width, horizontal channel" ; radar_beam_width_h:units = "degree" ; radar_beam_width_h:meta_group = "radar_parameters" ; float radar_beam_width_v ; radar_beam_width_v:long_name = "Half-power radar beam width, vertical channel" ; radar_beam_width_v:units = "degree" ; radar_beam_width_v:meta_group = "radar_parameters" ; float rx_sky_noise(time) ; rx_sky_noise:long_name = "Receiver sky noise, copolar" ; rx_sky_noise:units = "dBm" ; rx_sky_noise:missing_value = -9999.f ; double latitude ; latitude:long_name = "Latitude" ; latitude:units = "degree_N" ; latitude:standard_name = "latitude" ; double longitude ; longitude:long_name = "Longitude" ; longitude:units = "degree_E" ; longitude:standard_name = "longitude" ; double altitude ; altitude:long_name = "Altitude" ; altitude:units = "m" ; altitude:standard_name = "altitude" ; double altitude_agl ; altitude_agl:long_name = "Height of radar antenna above ground level" ; altitude_agl:units = "m" ; altitude_agl:standard_name = "height" ; float lat ; lat:long_name = "North latitude" ; lat:units = "degree_N" ; lat:standard_name = "latitude" ; lat:valid_min = -90.f ; lat:valid_max = 90.f ; float lon ; lon:long_name = "East longitude" ; lon:units = "degree_E" ; lon:standard_name = "longitude" ; lon:valid_min = -180.f ; lon:valid_max = 180.f ; double alt ; alt:long_name = "Altitude above mean sea level" ; alt:units = "m" ; alt:standard_name = "altitude" ; // global attributes: :command_line = "idl -R -n kazr -s oli -f M1" ; :Conventions = "CF/Radial instrument_parameters radar_parameters" ; :process_version = "ingest-kazr2-1.1-2.el6" ; :dod_version = "kazrmd-a1-2.0" ; :site_id = "oli" ; :platform_id = "kazrmd" ; :facility_id = "M1" ; :data_level = "a1" ; :location_description = "North Slope of Alaska (NSA), Oliktok Point, Alaska" ; :datastream = "olikazrmdM1.a1" ; :antenna_altitude = "3.81 m" ; :antenna_diameter = "1.81 m" ; :input_source = "/data/collection/oli/olikazrM1.00/KAZR2_MOMENTS_20191219-235958.dat" ; :title = "KAZR2 Moments" ; :institution = "Department of Energy Atmospheric Radiation Measurement Program" ; :radar_version = "KAZR-2" ; :operating_mode = "md " ; :operating_mode_description = "Moderate sensitivity, with better near-range coverage than high sensitivity mode " ; :attenuation_applied = "4.00 dB " ; :kazr2_software_version = "1.1-10" ; :comment = "CAUTION: This is a preliminary version of KAZR2 data. Data formats will change. Data quality not guaranteed" ; :doi = "10.5439/1095601" ; :history = "created by user dsmgr on machine ruby at 2019-12-20 01:40:06, using ingest-kazr2-1.1-2.el6" ; }