DQR ID | Subject | Data Streams Affected |
---|---|---|
D060106.15 | NIM/ECOR/M1 - Missing data | nim30ecorM1.b1 |
D060321.3 | NIM/SONDE/M1 - RH data incorrect. | nimsondewnpnM1.b1 |
D060407.1 | NIM/MET/M1 - Software problem | nimmetM1.b1 |
D060419.4 | NIM/MWR/M1 - Instrument noise problem/RF interference | nimmwrM1.00, nimmwrlosM1.b1, nimmwrtipM1.a1 |
D060523.2 | NIM/WACR/M1 - No crosspolarization data | nimwacrM1.00, nimwacrM1.b1 |
D060524.2 | NIM/MET/M1 - Optical Rain Gauge Failure | nimmetM1.b1 |
D060530.1 | NIM/ECOR/M1 - Flux Data Suspect for Some Wind Directions | nim30ecorM1.b1 |
D060718.1 | NIM/MWR/M1 - Reprocessed: Recalibration to correct for occasional overheating. | nimmwrlosM1.b1, nimmwrtipM1.a1 |
D060927.1 | NIM/MWR/M1 - Sun in field of view of radiometer | nimmwrlosM1.b1 |
D070215.5 | NIM/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration By Aircraft | nim30ecorM1.b1 |
D080304.2 | NIM/MET/M1 - ORG Data Incorrect | nimmetM1.b1 |
D080304.3 | NIM/MET/M1 - ORG Data Underestimated Precipitation | nimmetM1.b1 |
D080428.7 | NIM/MET/M1 - Reprocess: ORG Data has very small rainrate values | nimmetM1.b1 |
D081022.11 | NIM/MET/M1 - Wind Speed data contain offset due to induced voltage | nimmetM1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/11/2005 | 0830 | 12/13/2005 | 1230 |
01/28/2006 | 0330 | 01/30/2006 | 0800 |
08/25/2006 | 1930 | 08/29/2006 | 0730 |
Subject: | NIM/ECOR/M1 - Missing data |
DataStreams: | nim30ecorM1.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | nim30ecorM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/11/2006 | 0500 | 03/11/2006 | 0501 |
Subject: | NIM/SONDE/M1 - RH data incorrect. |
DataStreams: | nimsondewnpnM1.b1 |
Description: | RH% values oscillate between ambient values and 0%. The 0% RH values are incorrect. |
Measurements: | nimsondewnpnM1.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 |
---|---|---|---|
01/15/2006 | 0000 | 01/08/2007 | 0000 |
Subject: | NIM/MWR/M1 - Instrument noise problem/RF interference |
DataStreams: | nimmwrM1.00, nimmwrlosM1.b1, nimmwrtipM1.a1 |
Description: | Data are affected by intermittent spikes that become more frequent starting in March 2006. Spikes affect data mostly around 9 AM and 18:00 PM. The origin of the spikes is probably RF interference. |
Measurements: | nimmwrlosM1.b1:
nimmwrM1.00:
nimmwrtipM1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/18/2006 | 0800 | 04/20/2006 | 1130 |
Subject: | NIM/WACR/M1 - No crosspolarization data |
DataStreams: | nimwacrM1.00, nimwacrM1.b1 |
Description: | When the spectra disk was swapped, an erroneous configuration file was generated that resulted in only copol measurements. The averaging was also 1/2 of its normal value resulting in data files two times their normal size. |
Measurements: | nimwacrM1.00:
nimwacrM1.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 |
---|---|---|---|
11/26/2005 | 1530 | 01/07/2007 | 2359 |
Subject: | NIM/ECOR/M1 - Flux Data Suspect for Some Wind Directions |
DataStreams: | nim30ecorM1.b1 |
Description: | NIM: For some wind directions the horizontal fetch was not representative of the field in which the AMF was located. Therefore, for the wind direction ranges 90-170 (buildings) and 220-280 (trees) degrees, the fluxes are affected by insufficient fetch and surfaces, buildings, or vegetation that are not similar to the local field conditions. |
Measurements: | nim30ecorM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/01/2006 | 0000 | 01/08/2007 | 0000 |
Subject: | NIM/MWR/M1 - Reprocessed: Recalibration to correct for occasional overheating. |
DataStreams: | nimmwrlosM1.b1, nimmwrtipM1.a1 |
Description: | The radiometer was intermittently thermally unstable resulting in poor calibrations for four brief time periods. These data have been reprocessed to apply corrected calibrations. The affected time periods were: 20060302-20060303 20060423-20060425 20060512-20060515 20060531-20060603 |
Measurements: | nimmwrlosM1.b1:
nimmwrtipM1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/01/2006 | 0000 | 08/31/2006 | 2300 |
Subject: | NIM/MWR/M1 - Sun in field of view of radiometer |
DataStreams: | nimmwrlosM1.b1 |
Description: | Around 12 pm every day between 8/1 and 8/31 there is an increase in the brightness temperature due to the sun being in the field of view of the radiometer. |
Measurements: | nimmwrlosM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/26/2005 | 1530 | 01/07/2007 | 2330 |
Subject: | NIM/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration By Aircraft |
DataStreams: | nim30ecorM1.b1 |
Description: | Aircraft landings, departures, and running aircraft on the airport pad were found to produce large spikes in the half hourly CO2 flux and small spikes in CO2 concentration on many days during the entire deployment of the AMF at NIM. This influence was found on 40% of the days in March and April 2006 and sometimes for multiple periods in a day; this was typical of the year of data. The spikes range from only several micromoles s-1 m-2 to one hundred or more for flux (a typical spike was in the twenties) and near zero to 1.0 mmoles m-3 for CO2 concentration (typically around 0.15). The aircraft influence was caused by persistent easterly winds; the airport terminal pad and the nearest part of the runway were almost directly to the east of the ECOR location. Occasionally an influence on water vapor density was detected, but this was fairly rare and usually of very small magnitude. |
Measurements: | nim30ecorM1.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 |
---|---|---|---|
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 |
---|---|---|---|
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:
|