DQR ID | Subject | Data Streams Affected |
---|---|---|
D050412.1 | PYE/MET/M1 - Deployment period | pyemetM1.b1 |
D060407.1 | NIM/MET/M1 - Software problem | nimmetM1.b1 |
D060524.2 | NIM/MET/M1 - ORG 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 - Incorrect ORG data | fkbmetM1.b1 |
D080116.25 | FKB/MET/M1 - ORG reporting precip constantly | fkbmetM1.b1 |
D080304.3 | NIM/MET/M1 - ORG underestimated precipitation | nimmetM1.b1 |
D080428.6 | NIM/MET/M1/S1 - Reprocess: ORG Data has very small rainrate values | nimmetS1.b1 |
D081022.10 | PYE/MET/M1 - Wind Speed data contain offset due to induced voltage | pyemetM1.b1 |
D081022.11 | NIM/MET/M1 - Wind Speed data contain offset due to induced voltage | nimmetM1.b1 |
D081022.12 | NIM/MET/S1 - Wind Speed data contain offset due to induced voltage | nimmetS1.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 |
D090331.2 | NSA/MET/C1 - Temp/RH/wind data questionable | nsametC1.b1, nsatwrC1.b1 |
D090331.3 | NSA/MET/C1 - PWS data missing due to snow impaction | nsametC1.b1 |
D090331.4 | NSA/MET/C1 - Wind data intermittent | nsametC1.b1, nsatwrC1.b1 |
D090331.5 | NSA/MET/C1 - CMH data missing | nsametC1.b1 |
D090512.1 | HFE/MET/S1 - Barometer missing | hfemetS1.b1 |
D090512.2 | HFE/MET/S1 - Optical Rain Gage Failed | hfemetS1.b1 |
D090512.3 | HFE/MET/S1 - Wind Data Incorrect | hfemetS1.b1 |
D090512.4 | GRW/MET/M1 - Tower lowered during installation | grwmetM1.b1 |
D090630.1 | NSA/MET/C1 - Met data incorrect during calibration | nsametC1.b1, nsatwrC1.b1 |
D090630.2 | NSA/MET/C1 - PWS calibration | nsametC1.b1 |
D090630.3 | NSA/MET/C1 - CMH calibration | nsametC1.b1 |
D090710.1 | NSA/MET/C1 - 2m RH values incorrect | nsametC1.b1, nsatwrC1.b1 |
D091019.2 | GRW/MET/M1 - Temperature/RH aspirator failure | grwmetM1.b1 |
D091030.3 | NSA/MET/C2 - CMH Data Incorrect During Maintenance | nsametC2.b1 |
D091112.4 | SGP/MET/E27 - Rain Values Incorrect | sgpmetE27.b1 |
D091217.1 | NIM/MET/M1 - PWD cumulative precipitation incorrect | nimmetM1.b1 |
D091217.2 | NIM/MET/M1 - PWD 1 minute rainfall data suspect | nimmetM1.b1 |
D100106.1 | SGP/MET/E9 - Wind Speed Data Incorrect | sgpmetE9.b1 |
D100208.13 | NSA/MET/C1 - CMH and 10m winds failure | nsametC1.b1 |
D100218.1 | SGP/MET/E21 - Wind Sensor Inoperative Due to Ice | sgpmetE21.b1 |
D100303.2 | SGP/MET/E4 - Wind sensor frozen | sgpmetE4.b1 |
D100504.1 | NSA/MET/C1 - CMH Data Missing | nsametC1.b1 |
D100629.1 | SGP/MET/E20 - Rain Gauge Cable Chewed by Rodents | sgpmetE20.b1 |
D100709.1 | NSA/MET/C1 - CMH Sent to Vendor for Repair | nsametC1.b1 |
D101215.2 | NSA/MET/C1 - CMH offline | nsametC1.b1 |
D101220.3 | NSA/MET/C1 - 10m wind sensor offline | nsametC1.b1 |
D110105.2 | SGP/MET/E11 - Intermittent incorrect windspeed | sgpmetE11.b1 |
D110131.1 | SBS/MET/M1 - Atmospheric pressure spikes | sbsmetM1.b1 |
D110131.2 | SBS/MET/M1 - Site setup | sbsmetM1.b1 |
D110217.1 | NSA/MET/C1 - CMH offline | nsametC1.b1 |
D110415.2 | SGP/MET/E13 - PWD data incorrect/missing | sgpmetE13.b1 |
D110419.1 | SGP/MET/E13 - Missing PWD data | sgpmetE13.b1 |
D110513.2 | SBS/MET/M1 - Incorrect atmospheric pressure | sbsmetM1.b1 |
D110524.1 | SGP/MET/E6 - Intermittent missing atmos pressure data | sgpmetE6.b1 |
D110524.2 | SGP/MET/E21 - TimeCheck Error | sgpmetE21.b1 |
D110524.3 | SGP/MET/E9 - Time-stamp uncertainty | sgpmetE9.b1 |
D110602.2 | NSA/MET/C1 - CMH Failure | nsametC1.b1 |
D110621.1 | SGP/MET/E11 - Wind speed incorrect | sgpmetE11.b1 |
D110722.2 | NSA/MET/C1 - Wind sensor data missing | nsametC1.b1, nsatwrC1.b1 |
D111005.2 | SGP/MET/E7 - T/RH values incorrect | sgpmetE7.b1 |
D111006.10 | GAN/MET/M1 - Tower lowered and tipped for maintenance | ganmetM1.b1 |
D111006.8 | NIM/MET/M1 - Deployment period | nimmetM1.b1 |
D111006.9 | GAN/MET/M1 - Met data questionable | ganmetM1.b1 |
D111025.1 | GAN/MET/M1 - Intermittent PWD alarm | ganmetM1.b1 |
D111114.1 | SGP/MET/E9 - RH probe failure | sgpmetE9.b1 |
D111129.1 | NSA/MET/C1 - CMH communication failure | nsametC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/11/2005 | 0000 | 03/14/2005 | 2359 |
Subject: | PYE/MET/M1 - Deployment period |
DataStreams: | pyemetM1.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: | pyemetM1.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 - ORG 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 rain gauge (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 precipitation 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 - Incorrect ORG data |
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 - ORG 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 |
---|---|---|---|
01/06/2006 | 0000 | 01/06/2007 | 2359 |
Subject: | NIM/MET/M1 - ORG underestimated precipitation |
DataStreams: | nimmetM1.b1 |
Description: | The ORG underestimated precipitation by about 38% during the entire NIM deployment. No troubleshooting technique or replacement of gauge was successful in correcting the problem. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/26/2005 | 0000 | 12/08/2006 | 2359 |
Subject: | NIM/MET/M1/S1 - Reprocess: ORG Data has very small rainrate values |
DataStreams: | nimmetS1.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: | nimmetS1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/01/2005 | 0000 | 09/01/2005 | 2359 |
Subject: | PYE/MET/M1 - Wind Speed data contain offset due to induced voltage |
DataStreams: | pyemetM1.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: | pyemetM1.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 |
---|---|---|---|
12/26/2005 | 0000 | 12/08/2006 | 2359 |
Subject: | NIM/MET/S1 - Wind Speed data contain offset due to induced voltage |
DataStreams: | nimmetS1.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: | nimmetS1.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 | 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 |
11/09/2008 | 1920 | 11/09/2008 | 1956 |
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 |
---|---|---|---|
09/18/2008 | 0000 | 09/20/2008 | 2359 |
Subject: | NSA/MET/C1 - Temp/RH/wind data questionable |
DataStreams: | nsametC1.b1, nsatwrC1.b1 |
Description: | New wind sensors and new T/RH probes were being installed during this time period. The tower booms were lowered and much of the data collected were not at listed heights nor were the data accurate due to configurations during install. |
Measurements: | nsametC1.b1:
nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/10/2008 | 1220 | 10/10/2008 | 1750 |
10/11/2008 | 0700 | 10/11/2008 | 1100 |
11/07/2008 | 0652 | 11/08/2008 | 1903 |
11/22/2008 | 1400 | 11/24/2008 | 0310 |
11/25/2008 | 1900 | 11/27/2008 | 0300 |
02/13/2009 | 1450 | 02/18/2009 | 1800 |
Subject: | NSA/MET/C1 - PWS data missing due to snow impaction |
DataStreams: | nsametC1.b1 |
Description: | Blizzard conditions caused the optics to become impacted with snow and ice rendering the Present Weather Detector inoperative. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/01/2008 | 0000 | 12/18/2008 | 2100 |
Subject: | NSA/MET/C1 - Wind data intermittent |
DataStreams: | nsametC1.b1, nsatwrC1.b1 |
Description: | There was a loose wire on the serial data multiplexer causing the wind data to become missing during high wind situations. The high winds caused the enclosure to vibrate making the connection intermittent. |
Measurements: | nsametC1.b1:
nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/29/2008 | 1800 | 11/30/2008 | 1730 |
12/29/2008 | 1500 | 12/30/2008 | 0800 |
01/01/2009 | 0138 | 01/02/2009 | 0447 |
01/04/2009 | 0624 | 01/06/2009 | 1428 |
01/07/2009 | 1740 | 01/08/2009 | 1720 |
01/14/2009 | 0930 | 01/14/2009 | 2103 |
Subject: | NSA/MET/C1 - CMH data missing |
DataStreams: | nsametC1.b1 |
Description: | The data from the CMH was missing during these times due to a failing logic board. The board was replaced. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/20/2008 | 0000 | 07/28/2008 | 0905 |
Subject: | HFE/MET/S1 - Barometer missing |
DataStreams: | hfemetS1.b1 |
Description: | All spare barometers and the working barometer for this supplemental site were damaged during shipment. They were sent in for repair and recalibration. |
Measurements: | hfemetS1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/20/2008 | 0000 | 10/22/2008 | 2359 |
Subject: | HFE/MET/S1 - Optical Rain Gage Failed |
DataStreams: | hfemetS1.b1 |
Description: | All data collected by the ORG is of no use. The ORG had failed and any data collected was not indicative of the current weather. |
Measurements: | hfemetS1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/18/2008 | 1158 | 08/19/2008 | 0518 |
Subject: | HFE/MET/S1 - Wind Data Incorrect |
DataStreams: | hfemetS1.b1 |
Description: | The wind sensor became disconnected and no wind speed or direction data were collected. |
Measurements: | hfemetS1.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 |
---|---|---|---|
06/08/2009 | 2244 | 06/11/2009 | 2037 |
Subject: | NSA/MET/C1 - Met data incorrect during calibration |
DataStreams: | nsametC1.b1, nsatwrC1.b1 |
Description: | All met data from the tower booms (temp, RH, winds and derived variables) were incorrect due to the booms being lowered from their measurement heights. Additionally, the scaffolding was located directly adjacent to the booms affecting the wind field and the Temp/RH data. |
Measurements: | nsametC1.b1:
nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/10/2009 | 0014 | 06/10/2009 | 0130 |
Subject: | NSA/MET/C1 - PWS calibration |
DataStreams: | nsametC1.b1 |
Description: | The PWS was undergoing calibration. Any data collected during this time is not representative of the atmospheric state. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/10/2009 | 0159 | 06/10/2009 | 1940 |
Subject: | NSA/MET/C1 - CMH calibration |
DataStreams: | nsametC1.b1 |
Description: | CMH data missing due to removal of the sensor for annual calibration. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/13/2009 | 2215 | 07/08/2009 | 2250 |
Subject: | NSA/MET/C1 - 2m RH values incorrect |
DataStreams: | nsametC1.b1, nsatwrC1.b1 |
Description: | The new t/rh probe installed during annual calibrations and checks began to exhibit readings that were biased high compared to the Chilled Mirror Hygrometer. In high RH conditions the sensor would consistently report RH values in excess of 105%. Comparisons to the other tower levels also suggested that the 2m level RH data is suspect. |
Measurements: | nsametC1.b1:
nsatwrC1.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 |
---|---|---|---|
10/23/2009 | 0047 | 10/23/2009 | 1958 |
Subject: | NSA/MET/C2 - CMH Data Incorrect During Maintenance |
DataStreams: | nsametC2.b1 |
Description: | Data was incorrect as the CMH was offline and undergoing maintenance. |
Measurements: | nsametC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/29/2009 | 0000 | 10/29/2009 | 2359 |
Subject: | SGP/MET/E27 - Rain Values Incorrect |
DataStreams: | sgpmetE27.b1 |
Description: | Rainfall reported as 600mm. This value is incorrect. Reason unknown; maintenance on this facility ceased 10/1/2009. |
Measurements: | sgpmetE27.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/31/2006 | 0000 | 07/31/2006 | 2359 |
Subject: | NIM/MET/M1 - PWD cumulative precipitation incorrect |
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 - PWD 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 |
---|---|---|---|
11/25/2009 | 1733 | 12/10/2009 | 2121 |
Subject: | SGP/MET/E9 - Wind Speed Data Incorrect |
DataStreams: | sgpmetE9.b1 |
Description: | Wind speed sensor reference wire became detached. This caused all wind sensor data to report near 0 m/s. |
Measurements: | sgpmetE9.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/23/2010 | 0513 | 02/05/2010 | 2100 |
Subject: | NSA/MET/C1 - CMH and 10m winds failure |
DataStreams: | nsametC1.b1 |
Description: | At 0513GMT on 1/23 the atmos_pressure and CMH - temp, RH, DP & Sat. VP changed abruptly to unlikely values. The 10m winds failed at 1420GMT. The CMH was repaired on 02/04/2010 at 2254GMT and the 10m winds sensor was replaced on 02/05/2010 at 2100GMT. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/28/2010 | 2330 | 02/01/2010 | 1815 |
Subject: | SGP/MET/E21 - Wind Sensor Inoperative Due to Ice |
DataStreams: | sgpmetE21.b1 |
Description: | Due to an ice storm the wind sensor was inoperative. |
Measurements: | sgpmetE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/21/2010 | 0759 | 02/24/2010 | 1644 |
Subject: | SGP/MET/E4 - Wind sensor frozen |
DataStreams: | sgpmetE4.b1 |
Description: | Icing resulted in flatlined wind speed and direction measurements. |
Measurements: | sgpmetE4.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/23/2010 | 1943 | 04/26/2010 | 1903 |
Subject: | NSA/MET/C1 - CMH Data Missing |
DataStreams: | nsametC1.b1 |
Description: | The GFCI had tripped causing the CMH to lose power. All CMH variables are missing except CMHRH which reports 100% for the entire time. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/26/2010 | 0000 | 06/21/2010 | 2021 |
Subject: | SGP/MET/E20 - Rain Gauge Cable Chewed by Rodents |
DataStreams: | sgpmetE20.b1 |
Description: | The rain gauge cable was damaged by rodents. At the beginning of the time period, the data was falsely indicating nearly constant precipitation. Later it was falsely reporting no precipitation during a large rain event. Data are not recoverable. |
Measurements: | sgpmetE20.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/25/2010 | 1730 | 07/07/2010 | 2200 |
Subject: | NSA/MET/C1 - CMH Sent to Vendor for Repair |
DataStreams: | nsametC1.b1 |
Description: | CMH connector on the transmitter enclosure that goes to the head unit degraded and failed. System was removed and sent to the manufacturer for repair. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/01/2010 | 1208 | 12/09/2010 | 2259 |
Subject: | NSA/MET/C1 - CMH offline |
DataStreams: | nsametC1.b1 |
Description: | CMH removed for repair. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/23/2010 | 1543 | 11/05/2010 | 0716 |
Subject: | NSA/MET/C1 - 10m wind sensor offline |
DataStreams: | nsametC1.b1 |
Description: | The 10m wind sensor values were 0 m/s and 000 for wind direction. The sensor lost communications. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/20/2010 | 1900 | 11/01/2010 | 1539 |
Subject: | SGP/MET/E11 - Intermittent incorrect windspeed |
DataStreams: | sgpmetE11.b1 |
Description: | Starting on 10/20 the wind speed values intermittently flatlined. Site operations reseated cable on 11/1. |
Measurements: | sgpmetE11.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 |
---|---|---|---|
01/24/2011 | 1800 | 02/10/2011 | 2300 |
Subject: | NSA/MET/C1 - CMH offline |
DataStreams: | nsametC1.b1 |
Description: | Beginning 1/24/2011, the CMH went offline resulting in missing temperature and dewpoint measurements and erroneous vapor pressure, saturation vapor pressure, and RH measurements. Problem fixed with a power cycle. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/15/2011 | 1300 | 02/18/2011 | 2200 |
Subject: | SGP/MET/E13 - PWD data incorrect/missing |
DataStreams: | sgpmetE13.b1 |
Description: | Data collection problems during the time period specified resulted in incorrect or missing PWD data. |
Measurements: | sgpmetE13.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/09/2010 | 0000 | 01/10/2011 | 2000 |
Subject: | SGP/MET/E13 - Missing PWD data |
DataStreams: | sgpmetE13.b1 |
Description: | PWD data were missing due to an accidental reset on the instrument. |
Measurements: | sgpmetE13.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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/09/2011 | 1622 | 04/25/2011 | 1238 |
Subject: | SGP/MET/E6 - Intermittent missing atmos pressure data |
DataStreams: | sgpmetE6.b1 |
Description: | Atmospheric pressure data were intermittently missing during the period specified. No known reason for the missing data. |
Measurements: | sgpmetE6.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/07/2010 | 0000 | 06/29/2010 | 2359 |
Subject: | SGP/MET/E21 - TimeCheck Error |
DataStreams: | sgpmetE21.b1 |
Description: | Starting on 2010-06-07 the E21 system clock started drifting until the problem was corrected on 2010-06-29. The maximum daily offset reported in the collection logs were: Jun 7 offset: -5.04 Jun 8 Offset: -267.449039 Jun 9 Offset: -541.038624 Jun 10 Offset: -814.469141 Jun 11 Offset: -1076.862114 Jun 12 Offset: -1350.330223 Jun 13 Offset: -1623.639335 Jun 14 Offset: -1897.047754 Jun 15 Offset: -2170.552312 Jun 16 Offset: -2422.130746 Jun 17 Offset: -2684.607495 Jun 18 - Jun 22 (unknown) Jun 23 Offset: -4204.730579 If the E21 system clock drifts the E21 Datalogger clocks will be set to the same incorrect time. The met data will be correct but the corresponding time stamp cannot be accurately known or simply corrected. |
Measurements: | sgpmetE21.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/03/2010 | 0000 | 05/07/2010 | 0215 |
Subject: | SGP/MET/E9 - Time-stamp uncertainty |
DataStreams: | sgpmetE9.b1 |
Description: | Between 20100503 and 20100507 the sgp.E9 instruments (EBBR, MET, SIRS, SWATS) time clocks were drifting outside the allowable +/-3 seconds. During the specified period, the swings ranged from -326 to +637 seconds. |
Measurements: | sgpmetE9.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/15/2011 | 0900 | 05/28/2011 | 0010 |
Subject: | NSA/MET/C1 - CMH Failure |
DataStreams: | nsametC1.b1 |
Description: | The Chilled Mirror Hydrometer (CMH) developed a short in the wiring harness. All CMH data missing or incorrect during the period listed. |
Measurements: | nsametC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/14/2011 | 0724 | 05/18/2011 | 0130 |
Subject: | SGP/MET/E11 - Wind speed incorrect |
DataStreams: | sgpmetE11.b1 |
Description: | Starting on 05/14 the wind speed values at E11 intermittently flat-lined. The connections were reseated 5/18. |
Measurements: | sgpmetE11.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/17/2011 | 0200 | 07/20/2011 | 1823 |
Subject: | NSA/MET/C1 - Wind sensor data missing |
DataStreams: | nsametC1.b1, nsatwrC1.b1 |
Description: | 2m, 10m, 20m wind sensors went off-line 5/17 due to GFCI tripping caused by failing CMH. The 2m and 20m data wind sensor returned 6/6, but the 10m remained offline until 7/20 as the sensor was damaged. |
Measurements: | nsametC1.b1:
nsatwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/29/2011 | 1231 | 09/14/2011 | 1920 |
Subject: | SGP/MET/E7 - T/RH values incorrect |
DataStreams: | sgpmetE7.b1 |
Description: | The temperature, RH, and vapor pressure data were incorrect due to a loose connection. |
Measurements: | sgpmetE7.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2011 | 0348 | 10/05/2011 | 0444 |
Subject: | GAN/MET/M1 - Tower lowered and tipped for maintenance |
DataStreams: | ganmetM1.b1 |
Description: | The met tower was lowered for a PIR replacement. All met tower data are questionable during this period. |
Measurements: | ganmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/20/2005 | 0000 | 01/05/2006 | 2359 |
Subject: | NIM/MET/M1 - Deployment period |
DataStreams: | nimmetM1.b1 |
Description: | All data from the met tower are suspect during this time period as the systems were being deployed and in various states of operation. |
Measurements: | nimmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/17/2011 | 1030 | 09/30/2011 | 2359 |
Subject: | GAN/MET/M1 - Met data questionable |
DataStreams: | ganmetM1.b1 |
Description: | Met data are questionable during this time period as the system was being deployed and in various states of operation. |
Measurements: | ganmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/04/2011 | 0410 | 10/09/2011 | 1200 |
Subject: | GAN/MET/M1 - Intermittent PWD alarm |
DataStreams: | ganmetM1.b1 |
Description: | Intermittent backscatter alarms were tripping on the PWD suggesting something was blocking (dew) or getting into the measurement path (spider or ants). Problem resolved 10/9 with no clear indication of the cause. |
Measurements: | ganmetM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/08/2011 | 1550 | 11/09/2011 | 0701 |
Subject: | SGP/MET/E9 - RH probe failure |
DataStreams: | sgpmetE9.b1 |
Description: | The T/RH probe failed. The resulting problem led to very unreasonable values of RH (~160%) which caused the vapor pressure values to also be incorrect. |
Measurements: | sgpmetE9.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2011 | 0758 | 11/19/2011 | 0800 |
Subject: | NSA/MET/C1 - CMH communication failure |
DataStreams: | nsametC1.b1 |
Description: | CMH lost communication with datalogger. All values from CMH were -6999 during this time resulting in the CMHRH flatlining at 100%. Communications was intermittent during entire time period. |
Measurements: | nsametC1.b1:
|