DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D020613.3 | TWP/C2 Installation | twparsclcbh1clothC2.c1 | Suspect |
D020927.1 | SGP/ARSCL/C1 - ARSCL Cloud Bases and Low-level reflectivities | sgparsclcbh1clothC1.c1 | Suspect |
D061219.2 | TWP/ARSCL/C2 - Reprocess: ARSCL CloudBasePrecipitation field incorrect | twparsclcbh1clothC2.c1 | Incorrect |
D061219.3 | TWP/ARSCL/C1 - Reprocess: ARSCL CloudBasePrecipitation field incorrect | twparsclcbh1clothC1.c1 | Incorrect |
D061220.35 | TWP/ARSCL/C3 - Reprocess: ARSCL CloudBasePrecipitation field incorrect | twparsclcbh1clothC3.c1 | Incorrect |
D070104.1 | TWP/ARSCL/C2 - Reprocess: ARSCL CloudBasePrecipitation field incorrect | twparsclcbh1clothC2.c1 | Incorrect |
D100519.1 | SGP/ARSCL/C1 - Ceilometer not used during processing | sgparsclcbh1clothC1.c1 | Suspect |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/01/1998 | 0002 | 11/19/1998 | 2359 | Suspect |
Subject: | TWP/C2 Installation |
DataStreams: | twparsclcbh1clothC2.c1 |
Description: | The Nauru ARCS was installed during the period September-November 1998. Data were being collected by the end of October, but for the first several weeks of November, the site was undergoing considerable change, so data from that period should be used with caution. The official site dedication occured on November 20. Most on-site activity ended following the dedication so we will consider November 20 to be the beginning of the Nauru operations. The last members of the installation team left Nauru on November 24. |
Measurements: | twparsclcbh1clothC2.c1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/01/1996 | 0000 | 02/04/2000 | 2359 | Suspect |
Subject: | SGP/ARSCL/C1 - ARSCL Cloud Bases and Low-level reflectivities |
DataStreams: | sgparsclcbh1clothC1.c1 |
Description: | Prior to February 4, 2000, the ARSCL data set incorporated data from the Beaufort Laser Ceilometer as one of its inputs. Because of the BLC's high spatial resolution, this data was often chosen by ARSCL as the "CloudBaseBestEstimate" for boundary layer clouds. It was subsequently determined that the BLC cloud base was biased, with the BLC reporting cloud base heights that are 122 meters too high. The bias error will be corrected when the entire ARSCL data set is reprocessed as part of release_4. (The release version number is included the the netCDF global comments). This reprocessing will also include a small correction the the MMCR near-field reflectivities. This correction is less than 1 dB except for hydrometers within 200 meters of the surface. Thanks to Roger Marchand for helping bracket this problem. |
Measurements: | sgparsclcbh1clothC1.c1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/11/2003 | 0000 | 01/31/2005 | 2359 | Incorrect |
Subject: | TWP/ARSCL/C2 - Reprocess: ARSCL CloudBasePrecipitation field incorrect |
DataStreams: | twparsclcbh1clothC2.c1 |
Description: | The CloudBasePrecipitation field is incorrect and has no physical meaning. An ARSCL processing error occurred when the smet60s data stream format changed, causing the wrong data field to be used to supply precipitation measurements to the ARSCL VAP. The error caused no significant degradation in other ARSCL fields, since manual quality control corrected any related errors. |
Measurements: | twparsclcbh1clothC2.c1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/28/2003 | 0000 | 11/30/2004 | 2359 | Incorrect |
Subject: | TWP/ARSCL/C1 - Reprocess: ARSCL CloudBasePrecipitation field incorrect |
DataStreams: | twparsclcbh1clothC1.c1 |
Description: | The CloudBasePrecipitation field is incorrect and has no physical meaning. An ARSCL processing error occurred when the smet60s data stream format changed, causing the wrong data field to be used to supply precipitation measurements to the ARSCL VAP. The error caused no significant degradation in other ARSCL fields, since manual quality control corrected any related errors. |
Measurements: | twparsclcbh1clothC1.c1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/04/2005 | 0000 | 03/31/2006 | 2359 | Incorrect |
Subject: | TWP/ARSCL/C3 - Reprocess: ARSCL CloudBasePrecipitation field incorrect |
DataStreams: | twparsclcbh1clothC3.c1 |
Description: | The CloudBasePrecipitation field is incorrect and has no physical meaning. An ARSCL processing error occurred when the smet60s data stream format changed, causing the wrong data field to be used to supply precipitation measurements to the ARSCL VAP. The error caused no significant degradation in other ARSCL fields, since manual quality control corrected any related errors. |
Measurements: | twparsclcbh1clothC3.c1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/01/2003 | 0000 | 09/10/2003 | 2359 | Incorrect |
Subject: | TWP/ARSCL/C2 - Reprocess: ARSCL CloudBasePrecipitation field incorrect |
DataStreams: | twparsclcbh1clothC2.c1 |
Description: | The CloudBasePrecipitation field is incorrect and has no physical meaning. An ARSCL processing error occurred when the smet60s data stream format changed, causing the wrong data field to be used to supply precipitation measurements to the ARSCL VAP. The error caused no significant degradation in other ARSCL fields, since manual quality control corrected any related errors. |
Measurements: | twparsclcbh1clothC2.c1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/20/2009 | 0000 | 12/31/2009 | 2359 | Suspect |
Subject: | SGP/ARSCL/C1 - Ceilometer not used during processing |
DataStreams: | sgparsclcbh1clothC1.c1 |
Description: | The ceilometer was not used during processing due to a ceilometer data format change that ARSCL did not handle properly. As a result, cloud boundaries in the lowest several kilometers may be less accurate than usual, as they are based solely on the micropulse lidar and millimeter cloud radar. |
Measurements: | sgparsclcbh1clothC1.c1:
|