Datastream : XSACRBLRHI

X-Band Scanning ARM Cloud Radar (XSACR) Boundary Layer RHI Scan

Active Dates
2011.09.14 - 2011.10.20

Measurement Categories
Cloud Properties

Originating Instrument
X-Band Scanning ARM Cloud Radar (XSACR)

Measurements

Only measurements considered scientifically relevant are shown below by default.

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Measurement	Units	Variable
Altitude above mean sea level	m	alt
Altitude	meters	altitude
Altitude above ground level	meters	altitude_agl
Antenna transition indicator, 1 if between sweeps, otherwise 0	unitless	antenna_transition ( time )
Azimuth angle from true north	degrees	azimuth ( time )
Base time in Epoch	seconds since 1970-1-1 0:00:00 0:00	base_time
Elevation angle from horizontal	degrees	elevation ( time )
Target angle for sweep	degrees	fixed_angle ( sweep )
Follow mode	unitless	follow_mode ( sweep, string_length_4 )
Operating frequency	Hz	frequency ( frequency )
Instrument type	unitless	instrument_type ( string_length_6 )
North latitude	degree_N	lat
Latitude	degrees_north	latitude
Radar polarization Linear depolarization ratio H	dB	linear_depolarization_ratio ( time, range )
East longitude	degree_E	lon
Longitude	degrees_east	longitude
Hydrometeor fall velocity Mean Doppler velocity	meters per second	mean_doppler_velocity ( time, range )
Number of samples used to compute moments	unitless	n_samples ( time )
Unambiguous Doppler velocity	meters per second	nyquist_velocity ( time )
Platform type	unitless	platform_type ( string_length_6 )
Polarization mode	unitless	polarization_mode ( sweep, string_length_10 )
Primary axis of rotation	unitless	primary_axis ( string_length_6 )
Pulse repetition time	seconds	prt ( sweep )
PRT mode	unitless	prt_mode ( sweep, string_length_6 )
Pulse width	seconds	pulse_width ( time )
Index for the calibration that applies to each ray	unitless	r_calib_index ( time )
Noise floor power for horizontal copolar channel1	dBm	r_calib_noise_hc ( r_calib )
Noise power in noise source region for horizontal copolar channel 1	dBm	r_calib_noise_source_power_h ( r_calib )
Noise power in noise source region for vertical cross-polar channel	dBm	r_calib_noise_source_power_v ( r_calib )
Noise flor for vertical cross-polar channel 2	dBm	r_calib_noise_vx ( r_calib )
Pulse width for this calibration	seconds	r_calib_pulse_width ( r_calib )
Radar constant, horizontal copolar channel 1	dB	r_calib_radar_constant_h ( r_calib )
Radar constant, vertical cross-polar channel 2	dB	r_calib_radar_constant_v ( r_calib )
Receiver gain for horizontal copolar channel 1	dB	r_calib_receiver_gain_hc ( r_calib )
Receiver gain for vertical cross-polar channel 2	dB	r_calib_receiver_gain_vx ( r_calib )
Time of the calibration that applies to each ray	UTC	r_calib_time ( r_calib, string_length_21 )
Two-way radome loss	dB	r_calib_two_way_radome_loss_h ( r_calib )
Transmit power	dBm	r_calib_xmit_power_h ( r_calib )
Nominal radar antenna gain, h channel	dB	radar_antenna_gain_h
Nominal radar antenna gain, v channel	dB	radar_antenna_gain_v
Radar beam width, horizontal channel	degrees	radar_beam_width_h
Radar beam width, vertical channel	degrees	radar_beam_width_v
Radar measured transmit power, h channel	dBm	radar_measured_transmit_power_h ( time )
Range to measurement volume	meters	range ( range )
Radar reflectivity Equivalent reflectivity factor	dBZ	reflectivity ( time, range )
Scan rate, positive for clockwise or increasing elevation	degrees per second	scan_rate ( time )
Signal-to-noise-ratio	dB	snr ( time, range )
Cloud particle size distribution Spectrum width	meters per second	spectral_width ( time, range )
Index of last ray in sweep, 0-based	count	sweep_end_ray_index ( sweep )
Sweep mode	unitless	sweep_mode ( sweep, string_length_24 )
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 )
Time corresponding to last radial in file	unitless	time_coverage_end ( string_length_21 )
Time corresponding to first radial in file	unitless	time_coverage_start ( string_length_21 )
Time offset from base_time		time_offset ( time )
Unambiguous range	meters	unambiguous_range ( time )
Volume number	unitless	volume_number