DQR ID | Subject | Data Streams Affected |
---|---|---|
D150619.4 | MAO/DL/M1 - Banding artifacts in the SNR | maodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1 |
D150904.2 | MAO/DL/M1 - Instrument removed from service for repair | maodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1 |
D150922.4 | MAO/DL/M1 - Missing Data | maodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/12/2015 | 2300 | 06/15/2015 | 2330 |
Subject: | MAO/DL/M1 - Banding artifacts in the SNR |
DataStreams: | maodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1 |
Description: | Time height displays of the intensity (SNR+1) and backscatter fields exhibit obvious horizontal banding artifacts. The bands are regions where the SNR goes negative - which isn't physical. The problem was caused by a glitch in the noise whitening procedure. The problem was fixed when the driver for the data acquisition card was updated. The radial velocities do not exhibit obvious banding; however, they were likely affected in some way. |
Measurements: | maodlppiM1.b1:
maodlfptM1.b1:
maodlcal2M1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/28/2015 | 0200 | 12/31/2015 | 2359 |
Subject: | MAO/DL/M1 - Instrument removed from service for repair |
DataStreams: | maodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1 |
Description: | The AMF1 Doppler lidar was taken offline and packed for shipping to the vendor (Halo Photonics) on 28 August. Engineers at Halo will preform repairs and upgrades to the instrument. Data from the instrument will not be available for the remainder of the current AMF1 deployment in Brazil. |
Measurements: | maodlppiM1.b1:
maodlfptM1.b1:
maodlcal2M1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/19/2015 | 1500 | 08/28/2015 | 0200 |
Subject: | MAO/DL/M1 - Missing Data |
DataStreams: | maodlppiM1.b1, maodlfptM1.b1, maodlcal2M1.b1 |
Description: | The DL suffered from numerous outages during this period. Some of these periods are longer than 24 hours while many are less. The DL was sent off for repairs on 8/28 and will not be deployed again at MAO. |
Measurements: | maodlppiM1.b1:
maodlfptM1.b1:
maodlcal2M1.b1:
|