DQR ID | Subject | Data Streams Affected |
---|---|---|
D001107.2 | NSA/C1 data loss due to cut fiber optic cable | nsaorgC1.a1, nsapwsC1.a0, nsamettwrC1.a1 |
D011119.2 | NSA/METTWR/C1 - Met Tower Data Incorrect During Calibrations/Changeouts | nsamettwrC1.a1, nsamettwrC1.b1 |
D020402.2 | NSA/METTWR/C1 - C1 SPURIOUS INFORMATION IN DATA HEADER | nsamettwrC1.b1 |
D020402.3 | NSA/METTWR/C1 - C1 WIND SPEED DATA QUESTIONABLE | nsamettwrC1.a1, nsamettwrC1.b1 |
D020402.4 | NSA/METTWR/C1 - C1 WIND DIRECTION DATA SUSPECT | nsamettwrC1.a1, nsamettwrC1.b1 |
D020424.1 | NSA/METTWRC1 - METTWRCQ DATA REPORTED AS -9999 | nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1, nsamettwrC1.a1, nsamettwrC1.b1 |
D020424.2 | NSA/METTWRC1 - METTWRC1 NO DATA COLLECTED FROM TOWER | nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1, nsamettwrC1.a1, nsamettwrC1.b1 |
D020610.2 | NSA/METTWR/C1 - Wind Speed data intermittently bad | nsamettwrC1.a1, nsamettwrC1.b1 |
D020610.7 | NSA/METTWR/C1 - Data missing due to Power Failure | nsamettwrC1.a1, nsamettwrC1.b1 |
D030411.4 | NSA/C2 - Missing met, pws, snodep data due to comm error | nsapwsC2.a1, nsapwsC2.b1, nsasnodepC2.a1, nsamettiptwrC2.a1, nsamettiptwrC2.b1 |
D030528.5 | NSA/METTWR/C1 - C1/METTWR PRESSURE DATA MISSING AND INCORRECT | nsamettwrC1.a1, nsamettwrC1.b1 |
D040722.3 | NSA/METTWR/C2 - Chilled Mirror grounding and timing issues | nsamettwr2hC2.b1 |
D041004.1 | NSA/METTWR/C2 - Data Incorrect during Maintenance | nsamettwr2hC2.b1 |
D041004.2 | NSA/METTWR/C2 - All Data Missing or Incorrect during Maintenance | nsamettwr2hC2.b1 |
D041004.3 | NSA/METTWR/C2 - PWS Data Suspect | nsamettwr2hC2.b1 |
D041112.1 | NSA/METTWR/C2 - Instrument problem | nsamettwr2hC2.b1 |
D050224.1 | NSA/METTWR/C2 - Tower Lowered | nsamettwr2hC2.b1 |
D050527.3 | NSA/METTWR/C2 - Incorrect Maximum for Precip Values | nsamettwr2hC2.b1 |
D050603.2 | NSA/METTWR/C2 - CMH Data Missing During Calibration | nsamettwr2hC2.b1 |
D050829.1 | NSA/METTWR/C2 - Tower Lowered, Data Not Representative | nsamettwr2hC2.b1 |
D060223.2 | NSA/METTWR/C2 - Wind speed values artificially low | nsamettwr2hC2.b1 |
D060223.3 | NSA/METTWR/C2 - CMH Data incorrect | nsamettwr2hC2.b1 |
D060223.4 | NSA/METTWR/C2 - PWS data incorrect | nsamettwr2hC2.b1 |
D060406.2 | NSA/METTWR/C2 - CMH Intake Fan Failure | nsamettwr2hC2.b1 |
D060426.2 | NSA/METTWR/C2 - CMH Data Suspect | nsamettwr2hC2.b1 |
D060426.4 | NSA/METTWR/C2 - CMH Data Suspect | nsamettwr2hC2.b1 |
D060818.1 | NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa | nsamettwr2hC2.b1 |
D060913.2 | NSA/METTWR/C2 - CMH data missing and/or incorrect during maintenance. | nsamettwr2hC2.b1 |
D060913.3 | NSA/METTWR/C2 - PWS data missing/incorrect due to maintenance. | nsamettwr2hC2.b1 |
D060913.4 | NSA/METTWR/C2 - Met data incorrect due to tower being lowered for maintenance. | nsamettwr2hC2.b1 |
D061128.1 | NSA/METTWR/C2 - 2m Temp/RH sensor blocked with snow | nsamettwr2hC2.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 |
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 |
D100208.13 | NSA/MET/C1 - CMH and 10m winds failure | nsametC1.b1 |
D100504.1 | NSA/MET/C1 - CMH Data Missing | nsametC1.b1 |
D100709.1 | NSA/MET/C1 - CMH Sent to Vendor for Repair | nsametC1.b1 |
D981102.1 | NSA/TOWER - Mislabeled tower sensors | nsametC1.00, nsamettwrC1.a1 |
D991116.1 | NSA/METTOWER - Questionable NSA Met-tower wind data | nsametC1.00, nsamettwrC1.a1 |
D991116.2 | NSA/METTOWER - Questionable NSA Met-tower wind data | nsametC1.00, nsamettwrC1.a1 |
D991129.1 | NSA/METOWER - Reprocess: Incorrect NSA wind direction minima and maxima | nsametC1.00, nsamettwrC1.a1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/14/2000 | 0000 | 04/06/2000 | 2359 |
Subject: | NSA/C1 data loss due to cut fiber optic cable |
DataStreams: | nsaorgC1.a1, nsapwsC1.a0, nsamettwrC1.a1 |
Description: | The fiber optic line connecting the MET TWR to the data collection facility was accidentally cut during snow removal. Data are unrecoverable. |
Measurements: | nsapwsC1.a0:
nsamettwrC1.a1:
nsaorgC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/2001 | 2300 | 10/13/2001 | 2301 |
Subject: | NSA/METTWR/C1 - Met Tower Data Incorrect During Calibrations/Changeouts |
DataStreams: | nsamettwrC1.a1, nsamettwrC1.b1 |
Description: | Met Tower Data was incorrect during this period while sensor changeouts and calibrations were accomplished. |
Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0000 | 10/08/2001 | 2359 |
Subject: | NSA/METTWR/C1 - C1 SPURIOUS INFORMATION IN DATA HEADER |
DataStreams: | nsamettwrC1.b1 |
Description: | There is an attribute for read_timeout_count that should not be included. The affected prtion of the header is: read_timeout_count:details = '0 = no error, 1 = error' User should disregard this attribute information in the header. |
Measurements: | nsamettwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/25/2001 | 0000 | 10/13/2001 | 2301 |
Subject: | NSA/METTWR/C1 - C1 WIND SPEED DATA QUESTIONABLE |
DataStreams: | nsamettwrC1.a1, nsamettwrC1.b1 |
Description: | The anemometers located at all 4 levels (2m, 10m, 20m, and 40m) are heated anemometers. The thermistors controlling the amount of power applied to the cups of the anemometers failed. This caused too much power to be sent to the heating elements. The cups bubbled and, in some cases, completely melted through. |
Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/25/2001 | 0000 | 10/13/2001 | 2301 |
Subject: | NSA/METTWR/C1 - C1 WIND DIRECTION DATA SUSPECT |
DataStreams: | nsamettwrC1.a1, nsamettwrC1.b1 |
Description: | The wind direction sensor at the 10m level and 20m level became frozen. The senor at the 10m level became frozen on July 25 2001. The date that the 20m level became frozen is unknown but occurred after the 10m level became frozen. Both sensors froze in such a way as to consistently report wind direction values out of the south. |
Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/04/2002 | 1006 | 02/04/2002 | 1022 |
02/11/2002 | 2100 | 02/21/2002 | 1929 |
Subject: | NSA/METTWRC1 - METTWRCQ DATA REPORTED AS -9999 |
DataStreams: | nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1, nsamettwrC1.a1, nsamettwrC1.b1 |
Description: | Due to local power outages caused by winter storms, the Bridgeview collection program became corrupted. All tower data and associated instruments on the tower reported as -9999. |
Measurements: | nsapwsC1.a1:
nsamettwrC1.a1:
nsapwsC1.b1:
nsamettwrC1.b1:
nsaorgC1.a1:
nsaorgC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/04/2002 | 1023 | 02/11/2002 | 2059 |
02/21/2002 | 1930 | 02/21/2002 | 2002 |
Subject: | NSA/METTWRC1 - METTWRC1 NO DATA COLLECTED FROM TOWER |
DataStreams: | nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1, nsamettwrC1.a1, nsamettwrC1.b1 |
Description: | Power outage caused fatal errors in the Bridgeview collection program. No data was ingested from the tower and sensors located on the tower. |
Measurements: | nsapwsC1.a1:
nsamettwrC1.a1:
nsapwsC1.b1:
nsamettwrC1.b1:
nsaorgC1.a1:
nsaorgC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/28/2002 | 1530 | 09/18/2002 | 1915 |
Subject: | NSA/METTWR/C1 - Wind Speed data intermittently bad |
DataStreams: | nsamettwrC1.a1, nsamettwrC1.b1 |
Description: | Wind speed at 20m level icing up and wind speed values are intermittently 0 m/s, lower than other sensors and good at times. Heater failure on sensor that prevents icing. |
Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/06/2002 | 0150 | 06/07/2002 | 1707 |
Subject: | NSA/METTWR/C1 - Data missing due to Power Failure |
DataStreams: | nsamettwrC1.a1, nsamettwrC1.b1 |
Description: | From 020606.0150-0204, the met twr data (all levels) are all -9999 due to a power failure. The collection program was shut down from 0205-1930, so no data were collected. And from 1931-020607.1707, the data are all -9999 again due to the power failure. |
Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/25/2002 | 1430 | 03/26/2003 | 2229 |
Subject: | NSA/C2 - Missing met, pws, snodep data due to comm error |
DataStreams: | nsapwsC2.a1, nsapwsC2.b1, nsasnodepC2.a1, nsamettiptwrC2.a1, nsamettiptwrC2.b1 |
Description: | An error in the communication sub-routine of the Bridgeview collection software occurred resulting in data loss from the Snow Depth sensor, Present Weather Sensor and the Barometer. |
Measurements: | nsamettiptwrC2.a1:
nsamettiptwrC2.b1:
nsapwsC2.b1:
nsasnodepC2.a1:
nsapwsC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/21/2003 | 0501 | 05/28/2003 | 1659 |
Subject: | NSA/METTWR/C1 - C1/METTWR PRESSURE DATA MISSING AND INCORRECT |
DataStreams: | nsamettwrC1.a1, nsamettwrC1.b1 |
Description: | Starting at 0501 UTC on 05/21, pressure readings frequently are out of tolerance. The read timeout value had changed from 250 ms to 150 ms. Changed the read time out back to 250 ms. Unknown as to how read timeout values changed. |
Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2003 | 1719 | 07/14/2004 | 1500 |
Subject: | NSA/METTWR/C2 - Chilled Mirror grounding and timing issues |
DataStreams: | nsamettwr2hC2.b1 |
Description: | From beginning of data stream, the chilled mirror data was intermittent at best. Problems with grounding and timing issues between logging instruments caused data to be incorrect and at times missing. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/17/2004 | 0130 | 09/17/2004 | 0411 |
Subject: | NSA/METTWR/C2 - Data Incorrect during Maintenance |
DataStreams: | nsamettwr2hC2.b1 |
Description: | The 10m tower was lowered for 2-year change-out of the met sensors. Data during this time is not representative. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/17/2004 | 2217 | 09/18/2004 | 0047 |
09/18/2004 | 2324 | 09/19/2004 | 0307 |
Subject: | NSA/METTWR/C2 - All Data Missing or Incorrect during Maintenance |
DataStreams: | nsamettwr2hC2.b1 |
Description: | All data incorrect or missing due to change of the Serial Data multiplexer and the Vaisala QLI data collector during these times. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/18/2004 | 0048 | 09/18/2004 | 2323 |
09/19/2004 | 0307 | 09/19/2004 | 1530 |
Subject: | NSA/METTWR/C2 - PWS Data Suspect |
DataStreams: | nsamettwr2hC2.b1 |
Description: | Data from the PWS is suspect during these times due to problems when the system was re-calibrated. System was corrected. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/11/2004 | 2017 | 11/12/2004 | 2246 |
Subject: | NSA/METTWR/C2 - Instrument problem |
DataStreams: | nsamettwr2hC2.b1 |
Description: | CMH and PWS stopped reporting. Communication cable found to be broken. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/15/2005 | 2250 | 02/15/2005 | 2330 |
Subject: | NSA/METTWR/C2 - Tower Lowered |
DataStreams: | nsamettwr2hC2.b1 |
Description: | The tower was lowered to install the GroundMFR. Data from the T/RH probes and the wind speed and direction sensors are not representative during the time period. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2003 | 0000 | 05/26/2005 | 1014 |
Subject: | NSA/METTWR/C2 - Incorrect Maximum for Precip Values |
DataStreams: | nsamettwr2hC2.b1 |
Description: | The max values for cumulative rain sum of 99 mm and the rain rate of 999 mm/hr are incorrect. In communication with the manufacturer it has been found that the manual was in error. The actual max values of the cumulative rain sum is 99.99 mm and the rain rate is 999.99 mm/hr. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/03/2005 | 0123 | 06/03/2005 | 0229 |
Subject: | NSA/METTWR/C2 - CMH Data Missing During Calibration |
DataStreams: | nsamettwr2hC2.b1 |
Description: | The CMH was removed for it's bi-annual cleaning and calibration. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/22/2005 | 1830 | 08/22/2005 | 1850 |
Subject: | NSA/METTWR/C2 - Tower Lowered, Data Not Representative |
DataStreams: | nsamettwr2hC2.b1 |
Description: | The tower was lowered to remove equipment. The data from the wind sensors and T/RH probes were not representative. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/19/2006 | 1900 | 02/20/2006 | 1627 |
Subject: | NSA/METTWR/C2 - Wind speed values artificially low |
DataStreams: | nsamettwr2hC2.b1 |
Description: | Wind speed values were artificially low due to snow/ice accumulation on the anemometer cups during blizzard conditions. The heaters on the cups were not able to keep up with conditions. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/19/2006 | 1405 | 02/20/2006 | 1107 |
02/21/2006 | 0619 | 02/21/2006 | 2255 |
Subject: | NSA/METTWR/C2 - CMH Data incorrect |
DataStreams: | nsamettwr2hC2.b1 |
Description: | CMH data was incorrect due to blockage of intake by heavy, wet snow during blizzard conditions. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/21/2006 | 1113 | 02/21/2006 | 2359 |
Subject: | NSA/METTWR/C2 - PWS data incorrect |
DataStreams: | nsamettwr2hC2.b1 |
Description: | The Present Weather Sensor measurement optics were blocked by heavy, wet snow during blizzard conditions. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/04/2006 | 1914 | 04/06/2006 | 2025 |
Subject: | NSA/METTWR/C2 - CMH Intake Fan Failure |
DataStreams: | nsamettwr2hC2.b1 |
Description: | Intake fan failing causing poor readings from the CMH. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/06/2006 | 2212 | 04/11/2006 | 1812 |
Subject: | NSA/METTWR/C2 - CMH Data Suspect |
DataStreams: | nsamettwr2hC2.b1 |
Description: | CMH data was suspect due to incorrect intake fan installed. Proper spares were not on hand. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/20/2006 | 1535 | 04/20/2006 | 2110 |
Subject: | NSA/METTWR/C2 - CMH Data Suspect |
DataStreams: | nsamettwr2hC2.b1 |
Description: | CMH data was suspect due to blockage of intake by snow. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2003 | 0000 | 07/12/2006 | 1853 |
Subject: | NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa |
DataStreams: | nsamettwr2hC2.b1 |
Description: | Barometric pressure data was converted from hPa to kPa in order to standardize the measurement units among ARM sites and to conform to accepted standard units determined by the scientific community. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/11/2006 | 1756 | 08/11/2006 | 1925 |
Subject: | NSA/METTWR/C2 - CMH data missing and/or incorrect during maintenance. |
DataStreams: | nsamettwr2hC2.b1 |
Description: | CMH measured data was missing and the derived variables were incorrect due to routine maintenance. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/21/2006 | 2228 | 08/21/2006 | 2329 |
08/22/2006 | 0233 | 08/22/2006 | 0301 |
08/23/2006 | 2214 | 08/23/2006 | 2219 |
08/24/2006 | 1617 | 08/24/2006 | 1628 |
08/25/2006 | 0257 | 08/25/2006 | 0309 |
09/01/2006 | 0158 | 09/01/2006 | 0331 |
Subject: | NSA/METTWR/C2 - PWS data missing/incorrect due to maintenance. |
DataStreams: | nsamettwr2hC2.b1 |
Description: | Present Weather Sensor data was missing or incorrect due to maintenance activities repeated approximately daily as we were trying to correct another problem. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/11/2006 | 1952 | 08/11/2006 | 2006 |
Subject: | NSA/METTWR/C2 - Met data incorrect due to tower being lowered for maintenance. |
DataStreams: | nsamettwr2hC2.b1 |
Description: | Data from the tower is not representative of local conditions due to the tower being lowered for radiometer change. Sensors not attached to the tower such as the Present Weather Sensor, the Chilled Mirror Hygrometer and the Barometer were not affected. |
Measurements: | nsamettwr2hC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/27/2006 | 0608 | 11/27/2006 | 2226 |
Subject: | NSA/METTWR/C2 - 2m Temp/RH sensor blocked with snow |
DataStreams: | nsamettwr2hC2.b1 |
Description: | The 2m RH, Dew Point and Vapor Pressure values are incorrect due to the intake of the aspirated shield being blocked with snow and ice. The RH% values are artificially larger than the 5m and Chilled Mirror values. |
Measurements: | nsamettwr2hC2.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 |
---|---|---|---|
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 |
---|---|---|---|
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 |
---|---|---|---|
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 |
---|---|---|---|
05/25/2010 | 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 |
---|---|---|---|
08/21/1998 | 0000 | 10/22/1998 | 2200 |
Subject: | NSA/TOWER - Mislabeled tower sensors |
DataStreams: | nsametC1.00, nsamettwrC1.a1 |
Description: | The NSA tower data displayed on the local computer screen had the height mislabeled. Data written to files were correct. When the data acquisition program was fixed on 22 OCT 1998, only the computer display was changed. |
Measurements: | nsamettwrC1.a1:
nsametC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/08/1999 | 2200 | 10/25/1999 | 2300 |
Subject: | NSA/METTOWER - Questionable NSA Met-tower wind data |
DataStreams: | nsametC1.00, nsamettwrC1.a1 |
Description: | The data analysis software for the NSA Met_tower system was upgraded at 2200 GMT on 8 SEP 1999. The upgrade included replacement of missing data with -99.99's when the routine that polled the Met-tower sensors timed out. This resulted in large negative spikes in the 1-min averages. These spikes almost always occurred during the first several 1-min periods of a half-hour data processing routine. On 25 OCT 1999 at 2300 the routine that replaced missing data was changed to insert the previous 1-min averaged data instead of -99.99. Since at the most only one or two values are missing in ay averaging period, this change results in a reasonable estimate of the true mean values |
Measurements: | nsamettwrC1.a1:
nsametC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/08/1999 | 2200 | 11/15/1999 | 2200 |
Subject: | NSA/METTOWER - Questionable NSA Met-tower wind data |
DataStreams: | nsametC1.00, nsamettwrC1.a1 |
Description: | The data analysis software for the NSA Met-tower system was upgraded at 2200 GMT on 8 SEP 1999. The upgrade included insertion of -99.99's for the wind vectors when the wind speed or direction were either missing or equal to 0. This resulted in incorrect vector averaged wind speed, wind direction, and standard deviation of wind direction. When this occurred, the vector-averaged wind speed and standard deviation of wind direction were often abnormally high and the vector-averaged wind direction was often approximately 225 deg. Starting at 2300 GMT on 25 OCT 99 missing wind data were replaced by the previous 1-min average and starting at 2200 GMT on 15 NOV 1999 the computed wind vectors were used whenever wind speeds or wind directions were 0. |
Measurements: | nsamettwrC1.a1:
nsametC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/24/1998 | 0000 | 11/29/1999 | 2000 |
Subject: | NSA/METOWER - Reprocess: Incorrect NSA wind direction minima and maxima |
DataStreams: | nsametC1.00, nsamettwrC1.a1 |
Description: | From the time of installation of the NSA C1 Met-tower system on 24 MAR 1998 until 29 NOV 1999 all wind direction minima and maxima were reported as raw (unrotated) data. In order to obtain correct minima and maxima 30 deg must be subtracted from the value. All mean wind directions were computed from rotated (corrected) data. |
Measurements: | nsamettwrC1.a1:
nsametC1.00:
|