Velocity Example

You can choose any of the data parameters — V in this example — and rays then displays the header, followed by range bins starting from the specified bin.

Where no data is available for a ray, it displays Missing. When no data is available for a range bin within the ray, it displays a series of dashes (--.- --).

$ rays XXX041029121855. -data:v2 | more
[joe@localhost ingest]$ rays COX071115233217. -data:v | more
Task Summary for: COX071115233217.
Site name: 'cox-radar', Task name: 'PPI_C'
Scan: PPI, Speed: 9.00 deg/sec, Resolution:1.00 deg
Description: 'Doppler Velocity Volume Scan'
Location: 21 26.0'N 91 58.6'E, Altitude: 64 meters, Melting height:Unknown
Dpolapp config:
Volume Time: 23:32:17.442 15 NOV 2007 UTC (0 min. west) (LT: BDT -360 min.)
ZFlags: SP_T, block_zc, attn_zc, target_zc, dpatten_zc, dpatten_z
VFlags: SP_V, 3lag_w, ship_v, unfold_vc, fall_vc, storm_vc
PRF: 720/576Hz, PulseWidth: 1.00 usec (1)
BeamWidth: 1.46/1.50 deg.
Radar constant: 0.00/0.00 dB, Receiver bandwidth 0 kHz.
Calibration I0: -111.95/-113.03 dBm, with noise -79.70/-76.95 dBm.
LOG-Noise: 0.1776, Lin-Noise: 0.1776, I-Off: 0.0000, Q-Off: 0.0000
SOPRM Flags: 0x04af, LOG Slope: 0.480, Z-Cal: -36.81dBZ, H/V: 0.00 dB
Filters: Dop:6, Log:0; PntClt: 3, Thresh: 1.0 dB; Samples: 80
Processing Mode: FFT, Xmt Phase: Fixed
Zdr Threshold: LOG GDR = 0.00 dB, XDR = 0.00 dB
T Threshold: LOG LOG = 2.4 dB
Z Threshold: LOG & CSR SIG = 5.0 dB
V Threshold: SQI & CSR CSR = 15.0 dB
W Threshold: SIG & SQI & LOG SQI = 0.42
Available moments are: dBZ V
Original moments were: dBT dBZ V W
Starting range 0.125 km, range bin spacing 625 meters
There are 8 sweeps, each having 360 rays and 320 bins
Angle list: 0.0 1.5 3.0 4.5 6.0 9.0 12.0 15.0
Reading file: /usr/iris_data/ingest/COX071115233217.01V
Sweep Time: 23:32:17.442 15 NOV 2007
Starting at range 0.12 km (bin 1), bin step: 0.62 km
# 0 Az: 359.52, 0.47 El: 0.02, 0.02 Size: 320 23:32:32
--.- --.- --.- --.- --.- --.- --.- 17.3 17.3 17.3 17.3 --.- --.- --.-
# 1 Az: 0.47, 1.51 El: 0.02, 0.02 Size: 320 23:32:32
--.- --.- --.- -61.5 -61.5 -62.1 -62.1 -62.7 59.7 59.1 --.- --.- --.- --.-
# 2 Az: 1.53, 2.52 El: 0.02, 0.02 Size: 320 23:32:32
--.- --.- --.- --.- --.- --.- --.- --.- --.- --.- --.- --.- --.- --.-
# 3 Az: 2.54, 3.50 El: 0.02, 0.02 Size: 320 23:32:32
--.- --.- --.- --.- --.- --.- --.- --.- --.- 34.6 -38.8 -1.8 --.- --.-
# 4 Az: 3.52, 4.53 El: 0.02, 0.02 Size: 320 23:32:33
--.- --.- -31.0 -31.0 -31.0 -31.0 -31.0 -30.4 -30.4 -30.4 56.1 -1.8 -1.8 -
1.8
--More--