Datastream : XSAPRPPI

X-SAPR Plan Position Indicator scan

Active Dates
2010.12.14 - 2014.05.22

Measurement Categories
Cloud Properties

Originating Instrument
X-Band Scanning ARM Precipitation Radar (XSAPR)


Only measurements considered scientifically relevant are shown below by default.

Show all measurements

Measurement Units Variable
Altitude meters altitude
azimuth_angle_from_true_north degrees azimuth ( time )
Cross correlation ratio (RhoHV) unitless cross_correlation_ratio ( time, range )
Differential phase (PhiDP) degrees differential_phase ( time, range )
Differential reflectivity (ZDR) dB differential_reflectivity ( time, range )
Doppler spectrum width meters_per_second doppler_spectrum_width ( time, range )
elevation_angle_from_horizontal_plane degrees elevation ( time )
File status unitless file_status
Target angle for sweep degrees fixed_angle ( sweep )
Latitude degrees_north latitude
Longitude degrees_east longitude
Mean doppler velocity meters_per_second mean_doppler_velocity ( time, range )
Normalized coherent power unitless normalized_coherent_power ( time, range )
Nyquist velocity meters_per_second nyquist_velocity ( time )
Pulse repetition time seconds prt ( time )
Pulsing mode unitless prt_mode ( sweep, string_length )
range_to_measurement_volume meters range ( range )
Reflectivity horizontal dBZ reflectivity_horizontal ( time, range )
Specific differential phase (KDP) degrees_per_km specific_differential_phase ( time, range )
Index of last ray in sweep, 0-based count sweep_end_ray_index ( sweep )
Sweep mode unitless sweep_mode ( sweep, string_length )
Sweep number count sweep_number ( sweep )
Index of first ray in sweep, 0-based count sweep_start_ray_index ( sweep )
time_in_seconds_since_volume_start time ( time )
UTC time of last ray in the file unitless time_coverage_end ( string_length )
UTC time of first ray in the file unitless time_coverage_start ( string_length )
Total power dBZ total_power ( time, range )
Unambiguous range meters unambiguous_range ( time )
Volume number unitless volume_number


North Slope Alaska
NSAC1Browse DataCentral Facility, Barrow AK
Southern Great Plains
SGPI4Browse DataBillings, OK (SE X-band radar site, Intermediate / Auxiliary)
SGPI5Browse DataGarber, OK (SW X-band radar site, Intermediate / Auxiliary)
SGPI6Browse DataDeer Creek, OK (NW X-band radar site, Intermediate / Auxiliary)


Kevin Widener
(509) 528-9565

Nitin Bharadwaj
(509) 372-4267

Dan Nelson
(509) 375-6895

Iosif (Andrei) Lindenmaier
(509) 375--6802

Scott Collis
data analysis