Datastream : XSACRCWRHI
X-Band Scanning ARM Cloud Radar (XSACR) Cross-Wind 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.
Show all measurements
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 |
Linear depolarization ratio H | dB | linear_depolarization_ratio ( time, range ) |
East longitude | degree_E | lon |
Longitude | degrees_east | longitude |
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 ) |
Quality check results on field: Time in seconds since volume start | unitless | qc_time ( 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 | unitless | 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 | ns | 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 ) |
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 ) |
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 ) |
Unambiguous range | meters | unambiguous_range ( time ) |
Volume number | unitless | volume_number |
Locations
- Tropical Western Pacific (TWP)
- Central Facility, Darwin, Australia (C3)
- ARM Mobile Facility (GAN)
- Wharf site, Gan Island, Maldives (S1)
Contact(s)
Nitin Bharadwaj
(509) 372-4267
nitin@pnnl.gov
Kevin Widener
(509) 528-9565
kevin.widener@pnnl.gov