NMHC QA measures variable specific example

nmhc_qa_variable.nas

81 1001
Schmidbauer, Norbert; Someone, Else
NO01L, Norwegian Institute for Air Research, NILU, , Instituttveien 18, , N-2027, Kjeller, Norway
Solberg, Sverre
EMEP ACTRIS GAW-WDCRG
1 1
2015 01 01 2016 01 24
0.083333
days from file reference point
13
1 1 1 1 1 1 1 1 1 1 1 1 1
9999.999999 999999.999 99999.999 99999.999 9.999 99999.999 99999.999 99999.999 9.999 99999.999 999999.999 99999.999 9.999
end_time of measurement, days from the file reference point
ethane, pmol/mol, QA1 measure ID=ACTRIS-VOC-1, QA1 date=20120515, QA1 document URL="https://doi.org/10.5194/amt-8-2715-2015", Detection limit=
ethane, pmol/mol, QA1 measure ID=ACTRIS-VOC-1, QA1 date=20120515, QA1 document URL="https://doi.org/10.5194/amt-8-2715-2015", Statistics=expanded uncertainty 2sigma
ethane, pmol/mol, QA1 measure ID=ACTRIS-VOC-1, QA1 date=20120515, QA1 document URL="https://doi.org/10.5194/amt-8-2715-2015", Statistics=precision
numflag, no unit
propane, pmol/mol, Detection limit=
propane, pmol/mol, Statistics=expanded uncertainty 2sigma
propane, pmol/mol, Statistics=precision
numflag, no unit
n-butane, pmol/mol, Detection limit=
n-butane, pmol/mol, Statistics=expanded uncertainty 2sigma
n-butane, pmol/mol, Statistics=precision
numflag, no unit
0
54
Data definition:                         EBAS_1.1
Set type code:                           TU
Timezone:                                UTC
File name:                               NO0042G.20150101000000.20160124000000.online_gc.NMHC.air.1y.2h.NO01L_Medusa-9.NO01L_AGAGE.lev2.nas
Startdate:                               20150101000000
Revision date:                           20160124000000
Version:                                 1
Version description:                     initial revision, manually inspected
Data level:                              2
Period code:                             1y
Resolution code:                         2h
Sample duration:                         40mn
Orig. time res.:                         40mn
Station code:                            NO0042G
Platform code:                           NO0042S
Station name:                            Zeppelin mountain (Ny-Ålesund)
Station WDCA-ID:                         GAWANO__ZEP
Station GAW-ID:                          ZEP
Station GAW-Name:                        Zeppelin Atmospheric Observatory
Station land use:                        Arctic tundra
Station setting:                         Global
Station GAW type:                        G
Station WMO region:                      6
Station latitude:                        78.906667
Station longitude:                       11.888333
Station altitude:                        474.0m
Measurement altitude:                    474.0m
Measurement height:                      10.0m
Component:                               NMHC
Unit:                                    pmol/mol
Matrix:                                  air
Instrument type:                         online_gc
Laboratory code:                         NO01L
Instrument name:                         Medusa-9
Instrument manufacturer:                 AGAGE+Agilent+Agilent
Instrument model:                        MEDUSA+6890N+5975B
Instrument serial number:                70810508
Method ref:                              NO01L_AGAGE
Standard method:                         SOP=ACTRIS_VOC_2014 
Calibration scale:                       NPL
Calibration standard ID:                 Manufacturer Linde; Batch 1234567
Secondary standard ID:                   Manufacturer Linde; Batch 123489
Inlet type:                              Hat or hood
Inlet description:                       Downward facing with hood
Detection limit expl.:                   Detection limit equals 3 times the precision 
Measurement uncertainty expl.:           "Includes reproducibility (precision) + systematic errors (accuracy). Ref:http://www.atmos-meas-tech.net/8/2715/2015/" 
Zero/negative values code:               Zero/negative possible
Zero/negative values:                    Zero and neg. values may appear due to statistical variations at very low concentrations
Originator:                              Schmidbauer, Norbert, ns@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18,, N-2027, Kjeller, Norway
Originator:                              Someone, Else, Someone@somewhere.no, Some nice Institute, WOW, Super interesting division, Street18,, X-9999, Paradise, Noway
Submitter:                               Solberg, Sverre, sso@nilu.no, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18,, N-2027, Kjeller, Norway
Acknowledgement:                         Request acknowledgement details from data originator
Comment:                                 Preconcentration MEDUSA, o3 removed, nodryer, 3-hourly calibration interval
starttime endtime ethane ethane_ac ethane_pr numflag_ethane propane propane_ac propane_pr numflag_propane n-butane n-butane_ac n-butane_pr numflag_n-butane
0.000000 0.027778 1567.223 700.879 402.144 0.000 213.512 130.085 52.924 0.000 1567.223 700.879 402.144 0.000
0.083333 0.111111 999999.999 99999.999 99999.999 0.999 99999.999 99999.999 99999.999 0.999 99999.999 999999.999 99999.999 0.999