Data Quality Report

Data Quality Report for Order ID: 186289
User ID: vermeesch Date completed: 2017-06-21

All DQRs

DQR ID	Subject	Affected Data Streams	Data Quality Metric
D170110.4	NSA/CEIL/C1 - Environmental	nsaceilC1.b1	Suspect
D140227.1	NSA/CEIL/C1 - Window blower failure may allow moisture/frost on the window	nsaceilC1.b1	Suspect
D130502.3	NSA/CEIL/C1 - Reprocessed and Corrected: Time error	nsaceilC1.b1	Does not affect quality
D160212.3	SGP - Data System Upgrades: Data Missing	sgpceilC1.b1	Missing
D160718.3	NSA/CEIL/C1 - Data Missing	nsaceilpblhtC1.a0	Missing

DQR ID: D170110.4 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2016-12-30	23:43:00	2016-12-31	11:52:00	Suspect

Subject:	NSA/CEIL/C1 - Environmental
Affected Datastreams:	nsaceilC1.b1
Description	There appears to have been snow or ice on the window.
Measurements	third_cbh (Third cloud base height) vertical_visibility (Vertical visibility) first_cbh (Lowest cloud base height detected) second_cbh (Second lowest cloud base height) sum_backscatter (Sum of detected and normalized backscatter)

DQR ID: D140227.1 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2013-12-28	18:50:00	2014-02-27	00:45:00	Suspect

Subject:	NSA/CEIL/C1 - Window blower failure may allow moisture/frost on the window
Affected Datastreams:	nsaceilC1.b1
Description	The window blower failed. Measurements may be compromised by moisture/frost on the window.
Measurements	third_cbh (Third cloud base height) backscatter (Backscatter) vertical_visibility (Vertical visibility) first_cbh (Lowest cloud base height detected) second_cbh (Second lowest cloud base height)

DQR ID: D130502.3 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2013-03-31	01:00:00	2013-04-15	15:40:00	Does not affect quality

Subject:	NSA/CEIL/C1 - Reprocessed and Corrected: Time error
Affected Datastreams:	nsaceilC1.b1
Description	DATA REPROCESSED and CORRECTED: Time jumped forward an hour because the time zone was set to "(GMT) Greenwich Mean Time" with "Automatically adjust clock for Daylight Savings Time" selected. The time zone was changed to "(GMT) Coordinated Universal Time" and the clock reset to correct UTC time. Data for this time period have been corrected. The data were archived in November 2016. Please retrieve the reprocessed data for use in your analysis. ORIGINAL DQR CATEGORY: Red( Incorrect) REPROCESSED and CORRECTED DATA ARCHIVED:2016-11 REPROCESS IDENTIFICATION NUMBER: RID 923 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- The computer time jumped forward an hour because the time zone was set to "(GMT) Greenwich Mean Time" with "Automatically adjust clock for Daylight Savings Time" selected. The time zone was changed to "(GMT) Coordinated Universal Time" and the clock reset to correct UTC time. Correct time by subtracting 1 hour.
Measurements	time_offset (Time offset from base_time)

DQR ID: D160212.3 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2016-01-26	18:00:00	2016-01-27	21:45:59	Missing

Subject:	SGP - Data System Upgrades: Data Missing
Affected Datastreams:	sgpceilC1.b1
Description	The data system was undergoing upgrades. Data were lost during this period.
Measurements	detection_status (Detection status) time_bounds (Time cell bounds) receiver_sensitivity (Receiver sensitivity) qc_alt_highest_signal (Quality check results on field: Altitude of highest signal) sum_backscatter (Sum of detected and normalized backscatter) tilt_angle (Tilt angle) qc_window_transmission (Quality check results on field: Window transmission estimate) qc_second_cbh (Quality check results on field: Second lowest cloud base height) time_offset (Time offset from base_time) qc_laser_pulse_energy (Quality check results on field: Laser pulse energy) first_cbh (Lowest cloud base height detected) range (Distance to the center of the corresponding range bin) vertical_visibility (Vertical visibility) laser_temperature (Laser temperature) qc_tilt_angle (Quality check results on field: Tilt angle) window_contamination (Window contamination) range_bounds (Range cell bounds) qc_background_light (Quality check results on field: Background light) background_light (Background light) lon (East longitude) time (Time offset from midnight) qc_sum_backscatter (Quality check results on field: Sum of detected and normalized backscatter) status_flag (Ceilometer status indicator) qc_vertical_visibility (Quality check results on field: Vertical visibility) second_cbh (Second lowest cloud base height) measurement_parameters (Instrument measurement parameters) qc_laser_temperature (Quality check results on field: Laser temperature) status_string (Warning, alarm, and internal status information) laser_pulse_energy (Laser pulse energy) qc_first_cbh (Quality check results on field: Lowest cloud base height detected) backscatter (Backscatter) qc_window_contamination (Quality check results on field: Window contamination) third_cbh (Third cloud base height) alt_highest_signal (Altitude of highest signal) qc_receiver_sensitivity (Quality check results on field: Receiver sensitivity) base_time (Base time in Epoch) alt (Altitude above mean sea level) qc_third_cbh (Quality check results on field: Third cloud base height) window_transmission (Window transmission estimate) lat (North latitude)

DQR ID: D160718.3 (Back to Top)

Start Date	Start Time	End Date	End Time	Data Quality Metric
2016-07-12	11:20:00	2016-07-14	16:14:00	Missing

Subject:	NSA/CEIL/C1 - Data Missing
Affected Datastreams:	nsaceilpblhtC1.a0
Description	Site data system was being upgraded during this time frame.
Measurements	measurement_parameters (Instrument measurement parameters) time_bounds (Time cell bounds) receiver_sensitivity (Receiver sensitivity) qc_alt_highest_signal (Quality check results on field: Altitude of highest signal) background_light (Background light) status_string (Warning, alarm, and internal status information) range (Distance to the center of the corresponding range bin) qc_second_cbh (Quality check results on field: Second lowest cloud base height) time_offset (Time offset from base_time) qc_laser_pulse_energy (Quality check results on field: Laser pulse energy) first_cbh (Lowest cloud base height detected) vertical_visibility (Vertical visibility) laser_temperature (Laser temperature) qc_tilt_angle (Quality check results on field: Tilt angle) window_contamination (Window contamination) range_bounds (Range cell bounds) qc_background_light (Quality check results on field: Background light) sum_backscatter (Sum of detected and normalized backscatter) lon (East longitude) time (Time offset from midnight) qc_sum_backscatter (Quality check results on field: Sum of detected and normalized backscatter) backscatter (Backscatter) status_flag (Ceilometer status indicator) qc_vertical_visibility (Quality check results on field: Vertical visibility) second_cbh (Second lowest cloud base height) qc_laser_temperature (Quality check results on field: Laser temperature) tilt_angle (Tilt angle) laser_pulse_energy (Laser pulse energy) detection_status (Detection status) qc_window_transmission (Quality check results on field: Window transmission estimate) qc_window_contamination (Quality check results on field: Window contamination) third_cbh (Third cloud base height) alt_highest_signal (Altitude of highest signal) qc_receiver_sensitivity (Quality check results on field: Receiver sensitivity) base_time (Base time in Epoch) alt (Altitude above mean sea level) qc_third_cbh (Quality check results on field: Third cloud base height) window_transmission (Window transmission estimate) lat (North latitude) qc_first_cbh (Quality check results on field: Lowest cloud base height detected)