DQR ID | Subject | Data Streams Affected |
---|---|---|
D000514.4 | SGP/SIROS/E13 - occasional spikes in readings | DsgpsirosE13.00, sgpsirosE13.a1 |
D011207.10 | DSGP/CM/C1 - misnamed (date) raw data file | DsgpcmdewpC1.00 |
D011217.1 | SGP/SMOS - Truncated first records in selected sneakernet data files | sgpsmosE1.00, sgpsmosE11.01, sgpsmosE13.01, sgpsmosE15.01, sgpsmosE24.01, sgpsmosE25.01, sgpsmosE3.01, sgpsmosE4.01, sgpsmosE5.01, sgpsmosE6.01, sgpsmosE7.01, sgpsmosE8.01, sgpsmosE9.01 |
D020620.48 | SGP/SIROS/E11 - wrong units for broadband irradiance | sgpsirosE11.a1 |
D020620.50 | SGP/SIROS/E13 - wrong units for broadband irradiance | sgpsirosE13.a1 |
D020620.52 | SGP/SIROS/E16 - wrong units for broadband irradiance | sgpsirosE16.a1 |
D020620.56 | SGP/SIROS/E4 - wrong units for broadband irradiance | sgpsirosE4.a1 |
D020814.5 | TWP/SKYRAD/C3 - reprocess: PIR identified as unshaded is really shaded | twpskyrad20sC3.a1 |
D030821.6 | TWP/SKYRAD/C3 - IRT incorrect min/delta values | twpskyrad60sC3.b1 |
D960423.11 | SGP/SIROS/E16 - Wrong units for broadband irradiance | sgpsirosE16.a1 |
D960423.2 | SGP/SIROS/E4 - Wrong units for broadband irradiance | sgpsirosE4.a1 |
D960423.7 | SGP/SIROS/E11 - Wrong units for broadband irradiance | sgpsirosE11.a1 |
D960423.9 | SGP/SIROS/E13 - Wrong units for broadband irradiance | sgpsirosE13.a1 |
D960501.2 | SGP/SIROS - wrong units for broadband irradiance | sgpsirosE1.a1, sgpsirosE10.a1, sgpsirosE11.a1, sgpsirosE12.a1, sgpsirosE13.a1, sgpsirosE15.a1, sgpsirosE16.a1, sgpsirosE18.a1, sgpsirosE20.a1, sgpsirosE22.a1, sgpsirosE24.a1, sgpsirosE3.a1, sgpsirosE4.a1, sgpsirosE7.a1, sgpsirosE8.a1, sgpsirosE9.a1 |
D960602.3 | Level of pyranometer for global solar was slightly off | sgpsirosE13.a1 |
D960914.16 | time stamp error | sgpsirosE4.a1 |
D960914.7 | time stamp error | sgpsirosE13.a1 |
D960914.9 | time stamp error | sgpsirosE16.a1 |
D980505.15 | ||
D990721.1 | TWP/WSI | twpwsiC2.00 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/11/1993 | 0000 | 09/10/1994 | 0000 |
Subject: | SGP/SIROS/E13 - occasional spikes in readings |
DataStreams: | DsgpsirosE13.00, sgpsirosE13.a1 |
Description: | Since installation of this SIROS site to the dates specified, negative spikes occurred in the data streams indicated, especially up_short_hemisp, down_short_hemisp, down_long_diffuse_hemisp, and short_direct_normal. These spikes were induced by electrical interference from the fence that was used to keep out cattle. The spikes were eliminated by moving the fence further away from the SIROS sensors in September 1994. An assessment by Mike Split on the effects of the spikes indicated that the spikes superimposed on the readings ranged from -10 to -100 W m^-2. As many as 40 per day could occur. As a result of these spikes, the daily average reading of irradiance could be reduced by as much as 1 W m^-2, a half-hour average could be reduced by as much as 2 W m^-2, and a 5-min average could be affected by as much as 5 W m^-2. |
Measurements: | DsgpsirosE13.00:
sgpsirosE13.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/19/1998 | 0000 | 11/19/1998 | 2359 |
Subject: | DSGP/CM/C1 - misnamed (date) raw data file |
DataStreams: | DsgpcmdewpC1.00 |
Description: | The following data file contains data from 1998 but was originally archived with 1999 in the file name. The file was renamed per P011207.3, but the cause of the misnaming (truncated first few records) was not fixed. DsgpcmdewpC1.00.981119.000000.raw.9811192359.icm.v0 |
Measurements: | DsgpcmdewpC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/17/1998 | 0000 | 12/07/1998 | 2359 |
Subject: | SGP/SMOS - Truncated first records in selected sneakernet data files |
DataStreams: | sgpsmosE1.00, sgpsmosE11.01, sgpsmosE13.01, sgpsmosE15.01, sgpsmosE24.01, sgpsmosE25.01, sgpsmosE3.01, sgpsmosE4.01, sgpsmosE5.01, sgpsmosE6.01, sgpsmosE7.01, sgpsmosE8.01, sgpsmosE9.01 |
Description: | The following data files contain data from 1998 but were originally archived with file names with dates years into the future. The files were renamed per P011217.2-P011217.14, but the cause of the misnaming (truncated first records) was not fixed. The files marked with an asterix (*) are candidates for recycling to fill existing data gaps in the cdf record. The remaining files are documented here in the event a future reprocessing effort is called for. sgpsmosE1.01.981127.000000.raw.9811272359.sneak.v0 sgpsmosE1.01.981201.000000.raw.9812012359.sneak.v0 sgpsmosE1.01.981203.000000.raw.9812032359.sneak.v0 sgpsmosE3.01.981124.000000.raw.9811242359.sneak.v0 sgpsmosE4.01.981125.000000.raw.9811252359.sneak.v0 * sgpsmosE4.01.981126.000000.raw.9811262359.sneak.v0 * sgpsmosE5.01.981125.000000.raw.9811252359.sneak.v0 sgpsmosE5.01.981126.000000.raw.9811262359.sneak.v0 sgpsmosE5.01.981127.000000.raw.9811272359.sneak.v0 sgpsmosE5.01.981203.000000.raw.9812032359.sneak.v0 sgpsmosE6.01.981125.000000.raw.9811252359.sneak.v0 sgpsmosE6.01.981130.000000.raw.9811302359.sneak.v0 sgpsmosE6.01.981204.000000.raw.9812042359.sneak.v0 sgpsmosE6.01.981205.000000.raw.9812052359.sneak.v0 sgpsmosE6.01.981207.000000.raw.9812072359.sneak.v0 sgpsmosE7.01.981126.000000.raw.9811262359.sneak.v0 * sgpsmosE7.01.981128.000000.raw.9811282359.sneak.v0 sgpsmosE7.01.981204.000000.raw.9812042359.sneak.v0 sgpsmosE8.01.981122.000000.raw.9811222359.sneak.v0 sgpsmosE8.01.981123.000000.raw.9811232359.sneak.v0 sgpsmosE8.01.981202.000000.raw.9812022359.sneak.v0 sgpsmosE9.01.981201.000000.raw.9812012359.sneak.v0 sgpsmosE9.01.981204.000000.raw.9812042359.sneak.v0 sgpsmosE11.01.981117.000000.raw.9811172359.sneak.v0 * sgpsmosE11.01.981202.000000.raw.9812022359.sneak.v0 sgpsmosE13.01.981119.000000.raw.9811192359.sneak.v0 sgpsmosE13.01.981125.000000.raw.9811252359.sneak.v0 sgpsmosE13.01.981127.000000.raw.9811272359.sneak.v0 sgpsmosE13.01.981129.000000.raw.9811292359.sneak.v0 sgpsmosE13.01.981130.000000.raw.9811302359.sneak.v0 sgpsmosE13.01.981201.000000.raw.9812012359.sneak.v0 sgpsmosE15.01.981127.000000.raw.9811272359.sneak.v0 sgpsmosE15.01.981203.000000.raw.9812031437.sneak.v0 sgpsmosE24.01.981119.154900.raw.9811192359.sneak.v0 sgpsmosE24.01.981120.000000.raw.9811202359.sneak.v0 * sgpsmosE24.01.981125.000000.raw.9811252217.sneak.v0 * sgpsmosE24.01.981127.000000.raw.9811271420.sneak.v0 sgpsmosE24.01.981201.000000.raw.9812012359.sneak.v0 sgpsmosE24.01.981202.000000.raw.9812021536.sneak.v0 sgpsmosE25.01.981121.000000.raw.9811212359.sneak.v0 sgpsmosE25.01.981122.000000.raw.9811222359.sneak.v0 sgpsmosE25.01.981123.000000.raw.9811232359.sneak.v0 sgpsmosE25.01.981124.000000.raw.9811242359.sneak.v0 |
Measurements: | sgpsmosE6.01:
sgpsmosE5.01:
sgpsmosE4.01:
sgpsmosE11.01:
sgpsmosE8.01:
sgpsmosE9.01:
sgpsmosE25.01:
sgpsmosE13.01:
sgpsmosE1.00:
sgpsmosE15.01:
sgpsmosE7.01:
sgpsmosE3.01:
sgpsmosE24.01:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/30/1995 | 1704 | 01/23/1996 | 2359 |
Subject: | SGP/SIROS/E11 - wrong units for broadband irradiance |
DataStreams: | sgpsirosE11.a1 |
Description: | Headers for SIROS, MFR25m and MFR10m give the units for broadband irradiance as 'watts per square meter' (W/M^2). However, the units are really 'counts'. The fields affected are SIROS: 'hemisp_broadband:units' 'diffuse_hemisp_broadband:units' 'direct_norm_broadband:units' MFR: 'mfr_up_hemisp_broadband:units' This problem has existed since the beginning of the data streams, and was corrected by Jeff Slater on 1/23/96 (see C960314.2 by Ken Yates that closed P960229.2) |
Measurements: | sgpsirosE11.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/1994 | 2042 | 01/23/1996 | 2359 |
Subject: | SGP/SIROS/E13 - wrong units for broadband irradiance |
DataStreams: | sgpsirosE13.a1 |
Description: | Headers for SIROS, MFR25m and MFR10m give the units for broadband irradiance as 'watts per square meter' (W/M^2). However, the units are really 'counts'. The fields affected are SIROS: 'hemisp_broadband:units' 'diffuse_hemisp_broadband:units' 'direct_norm_broadband:units' MFR: 'mfr_up_hemisp_broadband:units' This problem has existed since the beginning of the data streams, and was corrected by Jeff Slater on 1/23/96 (see C960314.2 by Ken Yates that closed P960229.2) |
Measurements: | sgpsirosE13.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/02/1995 | 1737 | 01/23/1996 | 2359 |
Subject: | SGP/SIROS/E16 - wrong units for broadband irradiance |
DataStreams: | sgpsirosE16.a1 |
Description: | Headers for SIROS, MFR25m and MFR10m give the units for broadband irradiance as 'watts per square meter' (W/M^2). However, the units are really 'counts'. The fields affected are SIROS: 'hemisp_broadband:units' 'diffuse_hemisp_broadband:units' 'direct_norm_broadband:units' MFR: 'mfr_up_hemisp_broadband:units' This problem has existed since the beginning of the data streams, and was corrected by Jeff Slater on 1/23/96 (see C960314.2 by Ken Yates that closed P960229.2) |
Measurements: | sgpsirosE16.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/08/1995 | 2020 | 01/23/1996 | 2359 |
Subject: | SGP/SIROS/E4 - wrong units for broadband irradiance |
DataStreams: | sgpsirosE4.a1 |
Description: | Headers for SIROS, MFR25m and MFR10m give the units for broadband irradiance as 'watts per square meter' (W/M^2). However, the units are really 'counts'. The fields affected are SIROS: 'hemisp_broadband:units' 'diffuse_hemisp_broadband:units' 'direct_norm_broadband:units' MFR: 'mfr_up_hemisp_broadband:units' This problem has existed since the beginning of the data streams, and was corrected by Jeff Slater on 1/23/96 (see C960314.2 by Ken Yates that closed P960229.2) |
Measurements: | sgpsirosE4.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/12/2002 | 0738 | 03/01/2003 | 2359 |
Subject: | TWP/SKYRAD/C3 - reprocess: PIR identified as unshaded is really shaded |
DataStreams: | twpskyrad20sC3.a1 |
Description: | From the initial installation of the Darwin SKYRAD suite of instruments, two shaded PIRs were installed rather than one shaded an one unshaded PIR as documented in the netcdf header information. See P011109.2 for more discussion of this issue. |
Measurements: | twpskyrad20sC3.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/12/2002 | 0738 | 03/01/2003 | 2359 |
Subject: | TWP/SKYRAD/C3 - IRT incorrect min/delta values |
DataStreams: | twpskyrad60sC3.b1 |
Description: | For field sky_ir_temp, the value of valid_min was incorrectly assigned to -49.7 C and no value of valid_delta was assigned. The actual values should be -60 and 50 C, respectively. |
Measurements: | twpskyrad60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/02/1995 | 1737 | 01/23/1996 | 2359 |
Subject: | SGP/SIROS/E16 - Wrong units for broadband irradiance |
DataStreams: | sgpsirosE16.a1 |
Description: | Headers for SIROS, MFR25m and MFR10m give the units for broadband irradiance as 'watts per square meter' (W/m^2). However, the units are really 'counts'. The fields affected are SIROS: 'hemisp_broadband:units' 'diffuse_hemisp_broadband:units' 'direct_norm_broadband:units' MFR: 'mfr_up_hemisp_broadband:units' This problem has existed since the beginning of the data streams, and was corrected by Jeff Slater on 1/23/96 (see C960314.2 by Ken Yates that closed P960229.2) ---------------------------------------- |
Measurements: | sgpsirosE16.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/08/1995 | 2020 | 01/23/1996 | 2359 |
Subject: | SGP/SIROS/E4 - Wrong units for broadband irradiance |
DataStreams: | sgpsirosE4.a1 |
Description: | Headers for SIROS, MFR25m and MFR10m give the units for broadband irradiance as 'watts per square meter' (W/m^2). However, the units are really 'counts'. The fields affected are SIROS: 'hemisp_broadband:units' 'diffuse_hemisp_broadband:units' 'direct_norm_broadband:units' MFR: 'mfr_up_hemisp_broadband:units' This problem has existed since the beginning of the data streams, and was corrected by Jeff Slater on 1/23/96 (see C960314.2 by Ken Yates that closed P960229.2) |
Measurements: | sgpsirosE4.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/30/1995 | 1704 | 01/23/1996 | 2359 |
Subject: | SGP/SIROS/E11 - Wrong units for broadband irradiance |
DataStreams: | sgpsirosE11.a1 |
Description: | Headers for SIROS, MFR25m and MFR10m give the units for broadband irradiance as 'watts per square meter' (W/m^2). However, the units are really 'counts'. The fields affected are SIROS: 'hemisp_broadband:units' 'diffuse_hemisp_broadband:units' 'direct_norm_broadband:units' MFR: 'mfr_up_hemisp_broadband:units' This problem has existed since the beginning of the data streams, and was corrected by Jeff Slater on 1/23/96 (see C960314.2 by Ken Yates that closed P960229.2) |
Measurements: | sgpsirosE11.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/1994 | 2042 | 01/23/1996 | 2359 |
Subject: | SGP/SIROS/E13 - Wrong units for broadband irradiance |
DataStreams: | sgpsirosE13.a1 |
Description: | Headers for SIROS, MFR25m and MFR10m give the units for broadband irradiance as 'watts per square meter' (W/m^2). However, the units are really 'counts'. The fields affected are SIROS: 'hemisp_broadband:units' 'diffuse_hemisp_broadband:units' 'direct_norm_broadband:units' MFR: 'mfr_up_hemisp_broadband:units' This problem has existed since the beginning of the data streams, and was corrected by Jeff Slater on 1/23/96 (see C960314.2 by Ken Yates that closed P960229.2) |
Measurements: | sgpsirosE13.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/1994 | 0000 | 01/23/1996 | 2359 |
Subject: | SGP/SIROS - wrong units for broadband irradiance |
DataStreams: | sgpsirosE1.a1, sgpsirosE10.a1, sgpsirosE11.a1, sgpsirosE12.a1, sgpsirosE13.a1, sgpsirosE15.a1, sgpsirosE16.a1, sgpsirosE18.a1, sgpsirosE20.a1, sgpsirosE22.a1, sgpsirosE24.a1, sgpsirosE3.a1, sgpsirosE4.a1, sgpsirosE7.a1, sgpsirosE8.a1, sgpsirosE9.a1 |
Description: | Headers for SIROS, give the units for broadband irradiance as 'watts per square meter' (w/m^2). However, the units are really 'counts'. The fields affected are: 'hemisp_broadband:units' 'diffuse_hemisp_broadband:units' 'direct_norm_broadband:units' This problem existed since the beginning of the data streams, and was corrected on 1/23/96. |
Measurements: | sgpsirosE16.a1:
sgpsirosE8.a1:
sgpsirosE9.a1:
sgpsirosE10.a1:
sgpsirosE15.a1:
sgpsirosE3.a1:
sgpsirosE7.a1:
sgpsirosE20.a1:
sgpsirosE4.a1:
sgpsirosE22.a1:
sgpsirosE13.a1:
sgpsirosE11.a1:
sgpsirosE18.a1:
sgpsirosE24.a1:
sgpsirosE12.a1:
sgpsirosE1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/1994 | 0000 | 12/06/1994 | 1313 |
Subject: | Level of pyranometer for global solar was slightly off |
DataStreams: | sgpsirosE13.a1 |
Description: | DQR No: Platform: sgpsiros13 Subject: Level of pyranometer for global solar was slightly off Date Submitted: 6/1/96 Submitted By: Marv Wesely ___ Instrument Mentor ___ EST Member ___ Science Team Member _x_ Other __IT leader__ For questions or problems, please contact the ARM Experiment Center at 509-375-6898 or via email at dqr@arm.gov. Platform/Measurement: What level data: (raw,a0,a1,b1,c1 etc): All levels of sgpsiros13, but only for down_short_hemisp. What location was the data collected at: Period of time in question Begin Date 01/06/94 End Date 12/06/94 Time 06:00 (GMT) Data should be labeled: ___ questionable ___ All data fields affected ___ incorrect _x_ Only some data fields affected ___ wrong calibration _x_ others Discussion of Problem: Analysis of SIROS data from the central facility has indicated that the pyranometer (or PSP) used for global (solar) irradiance observations appeared to be slightly off level until site operations personnel re-leveled the sensor on Dec. 6, 1994. Calculations suggest that the sensor was leaning roughly toward the east by about 1.2 degrees. Comparisons to the nearby BSRN pyranometer ("psp2") show that the SIROS sensor was reading to high in the morning by as much as 5% and too small in the late afternoon by about the same percentage. Little, if any, effect was seen between 1700 and 2100 UTC (in November), and the effect was be practically zero under cloudy skies. Users of the data could conceivable adjust the data (down_short_hemisp for sgpsiros13) with the direct-beam SIROS or BSRN observation and values of the solar zenith and azimuth angles, which would need to be computed, and some fairly straighforward geometry calculations. Possibly an easier course of action is to rely on the BSRN observation of global solar radiation for small solar elevation angles. (This analysis was conducted by John DeLuisi and colleagues in 1994 but was not documented with a DQR. Some recent discussions I have had with Science Team members have indicated that they have seen this problem also.) Other observations/measurements impacted by this problem: None. Suggested Corrections of the Problem: (e.g. change calibration factor and recompute, flag data with this comment, etc.) Ideally, this note would be sent Send to people who received SIROS13 data for dates before Dec. 6, 1994, and the appropriate data in the archive would be flagged with this comment. |
Measurements: | sgpsirosE13.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/08/1995 | 0000 | 07/11/1996 | 2359 |
Subject: | time stamp error |
DataStreams: | sgpsirosE4.a1 |
Description: | The internal code that runs the MFRSR data logger had a bug that occasionally caused the time stamp associated with the data to be slightly in error. This error is thought to be very small (say less than 30 seconds) and very infrequent. (Unfortunately, we cannot give firm estimates of the magnitude and frequency of the error). After 96/07/11 the problem was corrected. Those who use the data before this time should realize that the time stamp for each record of data might be slightly in error. |
Measurements: | sgpsirosE4.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/06/1994 | 0000 | 07/19/1996 | 2359 |
Subject: | time stamp error |
DataStreams: | sgpsirosE13.a1 |
Description: | The internal code that runs the MFRSR data logger had a bug that occasionally caused the time stamp associated with the data to be slightly in error. This error is thought to be very small (say less than 30 seconds) and very infrequent. (Unfortunately, we cannot give firm estimates of the magnitude and frequency of the error). After 96/07/19 the problem was corrected. Those who use the data before this time should realize that the time stamp for each record of data might be slightly in error. |
Measurements: | sgpsirosE13.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/02/1995 | 0000 | 07/19/1996 | 2359 |
Subject: | time stamp error |
DataStreams: | sgpsirosE16.a1 |
Description: | The internal code that runs the MFRSR data logger had a bug that occasionally caused the time stamp associated with the data to be slightly in error. This error is thought to be very small (say less than 30 seconds) and very infrequent. (Unfortunately, we cannot give firm estimates of the magnitude and frequency of the error). After 96/07/19 the problem was corrected. Those who use the data before this time should realize that the time stamp for each record of data might be slightly in error. |
Measurements: | sgpsirosE16.a1:
|
Start Date | Start Time | End Date | End Time |
---|
Subject: | |
DataStreams: | |
Description: | |
Measurements: |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/15/1999 | 2150 | 07/18/1999 | 2024 |
Subject: | TWP/WSI |
DataStreams: | twpwsiC2.00 |
Description: | During this period of time the data acquisition frequency for the WSI on Nauru was changed from every 10 minutes to every 12 minutes |
Measurements: | twpwsiC2.00:
|