DQR ID | Subject | Data Streams Affected |
---|---|---|
D050412.1 | PYE/MET/M1 - Data questionable | pyesmet60sM1.b1 |
D060407.1 | NIM/MET/M1 - Software problem | nimmetM1.b1 |
D060524.2 | NIM/MET/M1 - Optical Rain Gauge Failure | nimmetM1.b1 |
D070412.1 | FKB/MET/M1 - Optical Rain Gauge Data Incorrect | fkbmetM1.b1 |
D070412.2 | FKB/MET/M1 - ORG Data incorrect during calibration | fkbmetM1.b1 |
D070417.1 | FKB/MET/M1 - Optical Rain Gauge Data Incorrect | fkbmetM1.b1 |
D080116.25 | FKB/MET/M1 - Optical Rain Gage Reporting Precip Constantly | fkbmetM1.b1 |
D080304.2 | NIM/MET/M1 - ORG Data Incorrect | nimmetM1.b1 |
D080304.3 | NIM/MET/M1 - ORG Data Underestimated Precipitation | nimmetM1.b1 |
D080428.5 | FKB/MET/M1 - Reprocess: ORG Data has very small rainrate values | fkbmetM1.b1 |
D080428.7 | NIM/MET/M1 - Reprocess: ORG Data has very small rainrate values | nimmetM1.b1 |
D080428.8 | PYE/SMET/M1 - Reprocess: ORG Data has very small rainrate values | pyesmet60sM1.b1 |
D081022.10 | PYE/SMET/M1 - Wind Speed data contain offset due to induced voltage | pyesmet60sM1.b1 |
D081022.11 | NIM/MET/M1 - Wind Speed data contain offset due to induced voltage | nimmetM1.b1 |
D081022.13 | HFE/MET/M1 - Wind Speed data contain offset due to induced voltage | hfemetM1.b1 |
D081022.9 | FKB/MET/M1 - Wind Speed data contain offset due to induced voltage | fkbmetM1.b1 |
D090216.3 | HFE/MET/M1 - Intermittent barometer failure | hfemetM1.b1 |
D090216.4 | HFE/MET/M1 - Intermittent PWD data | hfemetM1.b1 |
D090220.2 | HFE/MET/M1 - ORG Measuring Ice Crystals or Fog | hfemetM1.b1 |
D090220.3 | HFE/MET/M1 - Induced voltage on wind speed sensor cable | hfemetM1.b1 |
D090512.4 | GRW/MET/M1 - Tower lowered during installation | grwmetM1.b1 |
D091019.2 | GRW/MET/M1 - Temperature/RH Aspirator Failure | grwmetM1.b1 |
D091217.1 | NIM/MET/M1 - Present Weather Detector Cumulative Precipitation in Error | nimmetM1.b1 |
D091217.2 | NIM/MET/M1 - Present Weather Detector 1 Minute Rainfall Data Suspect | nimmetM1.b1 |
D100722.4 | HFE/MET/M1 - Reprocess: ORG Data has very small rainrate values | hfemetM1.b1 |
D100722.5 | GRW/MET/M1 - Reprocess: ORG Data has very small rainrate values | grwmetM1.b1 |
D110131.1 | SBS/MET/M1 - Atmospheric pressure spikes | sbsmetM1.b1 |
D110131.2 | SBS/MET/M1 - Site setup | sbsmetM1.b1 |
D110513.2 | SBS/MET/M1 - Incorrect atmospheric pressure | sbsmetM1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/11/2005 | 0000 | 03/14/2005 | 2359 |
Subject: | PYE/MET/M1 - Data questionable |
DataStreams: | pyesmet60sM1.b1 |
Description: | During the listed time period, the AMF was in the beginning phase of deployment. Data during this time may not be representative and should be used with caution. |
Measurements: | pyesmet60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/10/2006 | 1600 | 03/01/2006 | 0803 |
Subject: | NIM/MET/M1 - Software problem |
DataStreams: | nimmetM1.b1 |
Description: | Intermittent Failure of Logger to read data from the Barometer. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/13/2006 | 0000 | 05/26/2006 | 1015 |
Subject: | NIM/MET/M1 - Optical Rain Gauge Failure |
DataStreams: | nimmetM1.b1 |
Description: | The optical rain gauge on the met system did not record precipitation during this time period. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/17/2007 | 0000 | 03/17/2007 | 0600 |
04/02/2007 | 0000 | 04/02/2007 | 0800 |
04/03/2007 | 0300 | 04/03/2007 | 0800 |
04/04/2007 | 2300 | 04/05/2007 | 0900 |
04/06/2007 | 0100 | 04/06/2007 | 0800 |
04/07/2007 | 0000 | 04/07/2007 | 0700 |
04/09/2007 | 0000 | 04/09/2007 | 0800 |
04/10/2007 | 0000 | 04/10/2007 | 0700 |
04/11/2007 | 0000 | 04/11/2007 | 0700 |
Subject: | FKB/MET/M1 - Optical Rain Gauge Data Incorrect |
DataStreams: | fkbmetM1.b1 |
Description: | The Optical Raingauge (ORG) data was incorrect during the listed times. Ice/frost was forming on the lenses causing the ORG to believe there was precipitation occurring. |
Measurements: | fkbmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/08/2007 | 0736 | 04/08/2007 | 0745 |
Subject: | FKB/MET/M1 - ORG Data incorrect during calibration |
DataStreams: | fkbmetM1.b1 |
Description: | The ORG data was incorrect during calibration checks. The check mimics a precipiation event so the precip amounts that were collected were not actually measured. |
Measurements: | fkbmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/05/2007 | 0000 | 04/28/2007 | 2359 |
Subject: | FKB/MET/M1 - Optical Rain Gauge Data Incorrect |
DataStreams: | fkbmetM1.b1 |
Description: | Precipitation was being reported on days with no rain. Problems with the grounding and the orientation of the receiver facing south (sunlight in the optics) caused erroneous readings. |
Measurements: | fkbmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/15/2007 | 0300 | 12/31/2007 | 2359 |
Subject: | FKB/MET/M1 - Optical Rain Gage Reporting Precip Constantly |
DataStreams: | fkbmetM1.b1 |
Description: | During the time period listed the ORG reported precip consistently. Reason unknown as deployment ended before resolution of problem. |
Measurements: | fkbmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/24/2006 | 0800 | 07/24/2006 | 0900 |
Subject: | NIM/MET/M1 - ORG Data Incorrect |
DataStreams: | nimmetM1.b1 |
Description: | The ORG measured around 9cm of rain in a short period while other co-located sensors measured no precip. Use the Present Weather Detector data instead or set the ORG rainfall to 0mm during this time period. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/2006 | 0000 | 01/06/2007 | 2359 |
Subject: | NIM/MET/M1 - ORG Data Underestimated Precipitation |
DataStreams: | nimmetM1.b1 |
Description: | The ORG underestimated precipitation by about 38% during the entire NIM deployment. No troubleshooting technique or replacement of gage was successful in correcting the problem. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/14/2007 | 0000 | 12/31/2007 | 2359 |
Subject: | FKB/MET/M1 - Reprocess: ORG Data has very small rainrate values |
DataStreams: | fkbmetM1.b1 |
Description: | The ORG data is collected via analog signal and not digital. Therefore, we continuously collect data even when no rain is occurring. We also capture small events such as leaves, large bugs, dust, etc blowing through the measurement path. Because this discrete event occurs quickly the value is usually captured for 1 or 2 seconds. This value is then averaged to the minute producing rainrate on the order of .009 mm/hr or less. These values are not indicative of rain and should be removed from the record or summing over long periods can bias the climate record. We are reprocessing the data to remove these small values and are adjusting the collection program to remove them before ingest. |
Measurements: | fkbmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/2006 | 0000 | 01/07/2007 | 2359 |
Subject: | NIM/MET/M1 - Reprocess: ORG Data has very small rainrate values |
DataStreams: | nimmetM1.b1 |
Description: | The ORG data is collected via analog signal and not digital. Therefore, we continuously collect data even when no rain is occurring. We also capture small events such as leaves, large bugs, dust, etc blowing through the measurement path. Because this discrete event occurs quickly the value is usually captured for 1 or 2 seconds. This value is then averaged to the minute producing rainrate on the order of .009 mm/hr or less. These values are not indicative of rain and should be removed from the record or summing over long periods can bias the climate record. We are reprocessing the data to remove these small values and are adjusting the collection program to remove them before ingest. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2005 | 0000 | 09/15/2005 | 2359 |
Subject: | PYE/SMET/M1 - Reprocess: ORG Data has very small rainrate values |
DataStreams: | pyesmet60sM1.b1 |
Description: | The ORG data is collected via analog signal and not digital. Therefore, we continuously collect data even when no rain is occurring. We also capture small events such as leaves, large bugs, dust, etc blowing through the measurement path. Because this discrete event occurs quickly the value is usually captured for 1 or 2 seconds. This value is then averaged to the minute producing rainrate on the order of .009 mm/hr or less. These values are not indicative of rain and should be removed from the record or summing over long periods can bias the climate record. We are reprocessing the data to remove these small values and are adjusting the collection program to remove them before ingest. |
Measurements: | pyesmet60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2005 | 0000 | 09/01/2005 | 2359 |
Subject: | PYE/SMET/M1 - Wind Speed data contain offset due to induced voltage |
DataStreams: | pyesmet60sM1.b1 |
Description: | The marine model of the RM Young wind sensor needs twisted pair shielded cable. The manufacturer did not originally supply the pigtail with twisted pair shielded cable. Use of twisted pair shielded cable for the rest of the cable run to the logger was also not specified. This caused an induced voltage in the wind speed line from the wind direction excitation. The induced voltage varied from sensor to sensor and probably changed anytime the cable was replaced or parts of the wind sensor were repaired or replaced. The induced voltage has been seen to vary from 0.15 m/s to as much as 1.08 m/s. |
Measurements: | pyesmet60sM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/2006 | 0000 | 01/07/2007 | 2359 |
Subject: | NIM/MET/M1 - Wind Speed data contain offset due to induced voltage |
DataStreams: | nimmetM1.b1 |
Description: | The marine model of the RM Young wind sensor needs twisted pair shielded cable. The manufacturer did not originally supply the pigtail with twisted pair shielded cable. Use of twisted pair shielded cable for the rest of the cable run to the logger was also not specified. This caused an induced voltage in the wind speed line from the wind direction excitation. The induced voltage varied from sensor to sensor and probably changed anytime the cable was replaced or parts of the wind sensor were repaired or replaced. The induced voltage has been seen to vary from 0.15 m/s to as much as 1.08 m/s. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/19/2008 | 0000 | 12/28/2008 | 2159 |
Subject: | HFE/MET/M1 - Wind Speed data contain offset due to induced voltage |
DataStreams: | hfemetM1.b1 |
Description: | The marine model of the RM Young wind sensor needs twisted pair shielded cable. The manufacturer did not originally supply the pigtail with twisted pair shielded cable. Use of twisted pair shielded cable for the rest of the cable run to the logger was also not specified. This caused an induced voltage in the wind speed line from the wind direction excitation. The induced voltage varied from sensor to sensor and probably changed anytime the cable was replaced or parts of the wind sensor were repaired or replaced. The induced voltage has been seen to vary from 0.15 m/s to as much as 1.08 m/s. |
Measurements: | hfemetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2007 | 0000 | 01/01/2008 | 2359 |
Subject: | FKB/MET/M1 - Wind Speed data contain offset due to induced voltage |
DataStreams: | fkbmetM1.b1 |
Description: | The marine model of the RM Young wind sensor needs twisted pair shielded cable. The manufacturer did not originally supply the pigtail with twisted pair shielded cable. Use of twisted pair shielded cable for the rest of the cable run to the logger was also not specified. This caused an induced voltage in the wind speed line from the wind direction excitation. The induced voltage varied from sensor to sensor and probably changed anytime the cable was replaced or parts of the wind sensor were repaired or replaced. The induced voltage has been seen to vary from 0.15 m/s to as much as 1.08 m/s. |
Measurements: | fkbmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/19/2008 | 0000 | 12/28/2008 | 2159 |
Subject: | HFE/MET/M1 - Intermittent barometer failure |
DataStreams: | hfemetM1.b1 |
Description: | Intermittent barometer failure occurred throughout the deployment. We were unable to pinpoint the cause of the failure. Typically one or two minutes of missing data occurred every few days. Since pressure data is typically invariant over 1 minute, linear interpolation should be fine to fill in missing data. |
Measurements: | hfemetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/19/2008 | 0000 | 12/28/2008 | 2159 |
Subject: | HFE/MET/M1 - Intermittent PWD data |
DataStreams: | hfemetM1.b1 |
Description: | The Present Weather Detector had intermittent missing values throughout this deployment. Missing values occurred almost everyday, usually just one or two minutes per day. |
Measurements: | hfemetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/09/2008 | 1920 | 11/09/2008 | 1956 |
11/19/2008 | 2108 | 11/09/2008 | 2304 |
11/27/2008 | 1614 | 11/27/2008 | 2331 |
12/04/2008 | 1955 | 12/04/2008 | 2351 |
12/05/2008 | 0946 | 12/06/2008 | 0013 |
12/06/2008 | 1424 | 12/06/2008 | 2322 |
12/14/2008 | 1500 | 12/14/2008 | 1532 |
12/14/2008 | 1712 | 12/14/2008 | 1726 |
12/14/2008 | 1848 | 12/15/2008 | 0052 |
12/21/2008 | 0657 | 12/22/2008 | 0232 |
12/22/2008 | 0408 | 12/23/2008 | 0043 |
12/23/2008 | 1754 | 12/24/2008 | 0006 |
Subject: | HFE/MET/M1 - ORG Measuring Ice Crystals or Fog |
DataStreams: | hfemetM1.b1 |
Description: | The ORG was measuring consistent values for long periods of time. Typically this is indicative of fog, ice crystals in the air or poor performance of the lens heaters. |
Measurements: | hfemetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/19/2008 | 0000 | 12/28/2008 | 2359 |
Subject: | HFE/MET/M1 - Induced voltage on wind speed sensor cable |
DataStreams: | hfemetM1.b1 |
Description: | The cable for the wind monitor is not a twisted pair shielded cable. This caused an induced voltage on the wind sensor wires from the wind direction measurement excitation voltage. A small offset is added into the wind speeds. This value varies. Most frequently the values of 0.49, 0.588 and 0.686 m/s were added into the wind speed. On 11/27/2008 the value jumped to 0.98 m/s for most of the day. |
Measurements: | hfemetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/14/2009 | 0000 | 04/20/2009 | 2359 |
Subject: | GRW/MET/M1 - Tower lowered during installation |
DataStreams: | grwmetM1.b1 |
Description: | Data was collected during set up and installation. Any data collected is suspect due to the tower being lowered and calibration checks occurring. The data should be viewed critically before being used. |
Measurements: | grwmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/30/2009 | 0000 | 10/16/2009 | 0915 |
Subject: | GRW/MET/M1 - Temperature/RH Aspirator Failure |
DataStreams: | grwmetM1.b1 |
Description: | The aspirator fan on the solar shield failed causing incorrect readings on the temp, RH and calculated variables. |
Measurements: | grwmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/31/2006 | 0000 | 07/31/2006 | 2359 |
Subject: | NIM/MET/M1 - Present Weather Detector Cumulative Precipitation in Error |
DataStreams: | nimmetM1.b1 |
Description: | The Present weather detector is a serial sensor. The MET system datalogger reads in the data from this sensor. During the time in question serial comms problems were causing the data from the sensor to be read incorrectly. The data for one variable showed up in data for another variable or not at all. We reprocessed the data to correct as much of this error as we could. The cumulative rainfall variable was calculated from the instantaneous rainfall variable during reprocessing. Since we cannot be entirely sure all cumulative rainfall values are correct or were completely captured the cumulative rainfall data is considered to be unreliable. This issue shows up when comparing the cumulative rainfall data at the end of the day 07/31/2006 (79.08) and the beginning of the next day 08/01/2006 (3.17). Clearly we were either under or over-estimating the cumulative rainfall. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/31/2006 | 0000 | 07/31/2006 | 2359 |
Subject: | NIM/MET/M1 - Present Weather Detector 1 Minute Rainfall Data Suspect |
DataStreams: | nimmetM1.b1 |
Description: | The Present weather detector is a serial sensor. The MET system datalogger reads in the data from this sensor. During the time in question serial comms problems were causing the data from the sensor to be read incorrectly. The data for one variable showed up in data for another variable or not at all. We reprocessed the data to correct as much of this error as we could. We cannot be entirely certain that all rainfall values are correct or were captured properly. It is possible that some values were missed completely. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/09/2008 | 0000 | 12/28/2008 | 2359 |
Subject: | HFE/MET/M1 - Reprocess: ORG Data has very small rainrate values |
DataStreams: | hfemetM1.b1 |
Description: | The ORG data is collected via analog signal and not digital. Therefore, we continuously collect data even when no rain is occurring. We also capture small events such as leaves, large bugs, dust, etc blowing through the measurement path. Because this discrete event occurs quickly the value is usually captured for 1 or 2 seconds. This value is then averaged to the minute producing rainrate on the order of .009 mm/hr or less. These values are not indicative of rain and should be removed from the record or summing over long periods can bias the climate record. We will reprocess the data to remove these small values. |
Measurements: | hfemetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/14/2009 | 0000 | 06/30/2010 | 2359 |
Subject: | GRW/MET/M1 - Reprocess: ORG Data has very small rainrate values |
DataStreams: | grwmetM1.b1 |
Description: | The ORG data is collected via analog signal and not digital. Therefore, we continuously collect data even when no rain is occurring. We also capture small events such as leaves, large bugs, dust, etc blowing through the measurement path. Because this discrete event occurs quickly the value is usually captured for 1 or 2 seconds. This value is then averaged to the minute producing rainrate on the order of .009 mm/hr or less. These values are not indicative of rain and should be removed from the record or summing over long periods can bias the climate record. We will reprocess the data to remove these small values. |
Measurements: | grwmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/15/2010 | 0000 | 01/28/2011 | 2000 |
Subject: | SBS/MET/M1 - Atmospheric pressure spikes |
DataStreams: | sbsmetM1.b1 |
Description: | A nearby AC unit was causing +/-.05 (approx.) changes in pressure values, most frequently during the daylight hours but occasionally over night. Corrective action was taken to shield the sensor 1/28. |
Measurements: | sbsmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/27/2010 | 0000 | 11/15/2010 | 0000 |
Subject: | SBS/MET/M1 - Site setup |
DataStreams: | sbsmetM1.b1 |
Description: | The instruments were being setup and installed during this period. Some data may be questionable and minimal quality reporting will be done. |
Measurements: | sbsmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/07/2011 | 1945 | 04/12/2011 | 1400 |
Subject: | SBS/MET/M1 - Incorrect atmospheric pressure |
DataStreams: | sbsmetM1.b1 |
Description: | The atmospheric pressure readings showed a ~.3 - 1 mb oscillatory behavior. The sensor tube was found to be obstructed. It was fixed and proper function resumed. |
Measurements: | sbsmetM1.b1:
|