NSA/XSAPR/C1 - Reprocessing Notice (RID 1318)

See below for details of reprocessing that was completed on 20151207.  Original 
DQR category: 4 (Red, Incorrect).

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The time variable in the a1 datastream contains incorrect times for sweeps in which one or 
more rays were not collected by the instrument.

Data in field variables contains a default value and not _FillValue for gates in rays 
which have fewer than the maximum number of gates collected by the instrument for that 
volume. This has been observed in RHI scans in the NSA and SGP where the instruments does not 
collect gates which would have a height above a instrument defined altitude. These gates 
should be masked and indicated by _FillValue. The value in these gates is unusual for the 
field and typically easy to identify as incorrect.

• pulse_repetition_frequency(prt)
• Time corresponding to last radial in file(time_coverage_end)
• data_volume_start_time_utc(time_coverage_start)
• Clutter filtered reflectivity in horizontal polarization(reflectivity_horizontal)
• East longitude(longitude)
• Index of first ray in sweep, 0-based(sweep_start_ray_index)
• Differential propagation phase shift(differential_phase)
• data_volume_index_number(volume_number)
• Mean doppler velocity(mean_doppler_velocity)
• altitude(altitude)
• Cross correlation ratio (RhoHV)(cross_correlation_ratio)
• Specific differential phase (KDP)(specific_differential_phase)
• time_in_seconds_since_volume_start(time)
• transmit_pulse_mode(prt_mode)
• Total power(total_power)
• Normalized coherent power(normalized_coherent_power)
• File status(file_status)
• Scan mode for sweep(sweep_mode)
• North latitude(latitude)
• Distance to the center of the corresponding range bin(range)
• Time index of last ray in sweep, 0-based(sweep_end_ray_index)
• Beam Elevation Angle(elevation)
• Azimuth of Radar Ray(azimuth)
• Sweep number, zero-based count(sweep_number)
• ray_target_fixed_angle(fixed_angle)
• Unambiguous range(unambiguous_range)
• Unambiguous Doppler velocity(nyquist_velocity)
• Differential reflectivity(differential_reflectivity)
• Doppler spectrum width(doppler_spectrum_width)

• East longitude(longitude)
• data_volume_index_number(volume_number)
• Beam Elevation Angle(elevation)
• Specific differential phase (KDP)(specific_differential_phase)
• Time index of last ray in sweep, 0-based(sweep_end_ray_index)
• ray_target_fixed_angle(fixed_angle)
• Time corresponding to last radial in file(time_coverage_end)
• Scan mode for sweep(sweep_mode)
• Clutter filtered reflectivity in horizontal polarization(reflectivity_horizontal)
• pulse_repetition_frequency(prt)
• Differential propagation phase shift(differential_phase)
• Unambiguous range(unambiguous_range)
• File status(file_status)
• Total power(total_power)
• Index of first ray in sweep, 0-based(sweep_start_ray_index)
• Normalized coherent power(normalized_coherent_power)
• Sweep number, zero-based count(sweep_number)
• altitude(altitude)
• Differential reflectivity(differential_reflectivity)
• North latitude(latitude)
• Mean doppler velocity(mean_doppler_velocity)
• Azimuth of Radar Ray(azimuth)
• Cross correlation ratio (RhoHV)(cross_correlation_ratio)
• time_in_seconds_since_volume_start(time)
• Doppler spectrum width(doppler_spectrum_width)
• Unambiguous Doppler velocity(nyquist_velocity)
• Distance to the center of the corresponding range bin(range)
• transmit_pulse_mode(prt_mode)
• data_volume_start_time_utc(time_coverage_start)

• Time index of last ray in sweep, 0-based(sweep_end_ray_index)
• Total power(total_power)
• Differential propagation phase shift(differential_phase)
• North latitude(latitude)
• transmit_pulse_mode(prt_mode)
• Beam Elevation Angle(elevation)
• altitude(altitude)
• Azimuth of Radar Ray(azimuth)
• Time corresponding to last radial in file(time_coverage_end)
• Differential reflectivity(differential_reflectivity)
• Specific differential phase (KDP)(specific_differential_phase)
• Unambiguous Doppler velocity(nyquist_velocity)
• File status(file_status)
• pulse_repetition_frequency(prt)
• Distance to the center of the corresponding range bin(range)
• data_volume_start_time_utc(time_coverage_start)
• Unambiguous range(unambiguous_range)
• Mean doppler velocity(mean_doppler_velocity)
• East longitude(longitude)
• Cross correlation ratio (RhoHV)(cross_correlation_ratio)
• time_in_seconds_since_volume_start(time)
• data_volume_index_number(volume_number)
• Scan mode for sweep(sweep_mode)
• Index of first ray in sweep, 0-based(sweep_start_ray_index)
• Clutter filtered reflectivity in horizontal polarization(reflectivity_horizontal)
• Doppler spectrum width(doppler_spectrum_width)
• Normalized coherent power(normalized_coherent_power)
• Sweep number, zero-based count(sweep_number)
• ray_target_fixed_angle(fixed_angle)