Data Quality Report

Data Quality Report for Order ID: 187605
User ID: wangm1 Date completed: 2017-09-07

All DQRs

DQR ID	Subject	Affected Data Streams	Data Quality Metric
D170309.3	ASI/WACR/M1 - Single Pol	asiwacrM1.a1	Note
D170309.5	ASI/WACR/M1 - Transmitter Down	asiwacrM1.a1	Incorrect
D170309.4	ASI/WACR/M1 - Sampling Rate Changes	asiwacrspeccmaskcopolM1.a0	Note

DQR ID: D170309.3 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2016-12-01	14:34:49	2016-12-05	17:35:00	Note

Subject:	ASI/WACR/M1 - Single Pol
Affected Datastreams:	asiwacrM1.a1
Description	The radar is only transmitting in copol during this period
Measurements	signal_to_noise_ratio (Signal to noise ratio) polarization (Polarization mode.) mean_doppler_velocity (Mean doppler velocity) reflectivity (Equivalent reflectivity factor) spectral_width (Spectral width)

DQR ID: D170309.5 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2016-10-22	00:15:00	2016-10-22	14:00:00	Incorrect
2016-12-11	01:30:00	2016-12-11	13:15:00	Incorrect
2016-10-17	02:45:00	2016-10-17	13:00:00	Incorrect

Subject:	ASI/WACR/M1 - Transmitter Down
Affected Datastreams:	asiwacrM1.a1
Description	Transmitter was not working during these periods. Data are just background noise
Measurements	noise_power_sky (Total sky noise power prior to spectrum computation) mean_doppler_velocity (Mean doppler velocity) reflectivity (Equivalent reflectivity factor) noise_figure (Receiver noise figure estimated from noise source measurements using Y-factor method.) spectral_width (Spectral width) signal_to_noise_ratio (Signal to noise ratio)

DQR ID: D170309.4 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2016-12-01	14:34:49	2016-12-05	17:35:00	Note
2016-10-13	16:13:00	2016-10-20	18:59:59	Note

Subject:	ASI/WACR/M1 - Sampling Rate Changes
Affected Datastreams:	asiwacrspeccmaskcopolM1.a0
Description	The sampling rate during these periods were changing resulting in multiple file splits. The actual data should not be affected.
Measurements	noise_power_sky (Total sky noise power prior to spectrum computation) roll (Ship roll, axis along ship length, positive is port up) mean_doppler_velocity (Mean doppler velocity) time_offset (Time offset from base_time) base_time (Base time in Epoch) reflectivity (Equivalent reflectivity factor) gain (Receiver gain estimated from noise source measurements using Y-factor method) spectral_width (Spectral width) noise_figure (Receiver noise figure estimated from noise source measurements using Y-factor method.) time (Time offset from midnight) height (Range heights (center of radar sample volume)) signal_to_noise_ratio (Signal to noise ratio) polarization (Polarization mode.) pitch (Ship pitch, axis starboard-to-port, positive is bow up)