Grad2005, Cham2005, column names:
"pdetect" ==> pressure in detection chamber (mbar)
"PCair" ==> pressure in inlet before entering the PTR-MS (mbar)
"tdrift" ==> temperature of drift tube (degree celsius)
"udrift" ==> voltage along the drift tube (V)
"pdrift" ==> pressure in drift tube (mbar)
"year" ==>
"toy" ==> time of year, e.g. Jan 2, 2005, 6:00pm is 2.75
"t03" ==> days since 12/31/2002 (leap days are omitted)
"doy" ==> day of year
"hours" ==> hour of day
"minutes" ==> minute of hour
"seconds" ==> second of minute
"m37DIVm21" ==> ratio m37 / m21 (cps/cps)
"m32DIVm21" ==> ratio m32 / m21 (cps/cps)
"cycle" ==> measurement cycle
"reltime"==> elapsed time since cycle 1 was recorded
"FMair" ==> sample air flow entering the PTR-MS but by-passing the drift tube (sccm)
"FCh2o" ==> water flow into ion source (sccm)
"Ud" ==> voltage along the drift tube (V)
"pd" ==> pressure in drift tube (mbar)
"FCinlet" ==> main inlet flow (sccm)
"FCstd" ==> standard gas flow (sccm)
"FCcalib" ==> gas flow of PTR-MS calibration standard cc206760 (sccm)
"FCchamO3" ==> chamber flow with O3 (sccm)
"FCcham" ==> chamber flow without O3 (sccm)
"FCchamGC" ==> flow in line from chamber ‘interface’ to GC-port (sccm)
"FMco2" ==> CO2 flow added to 0-air (sccm)
"grad" ==> gradient valve position reading (mV)
"height”==> sample height above ground (m)
VOC column names: mixing ratios in ppb; ratios ppb/ppb
"methanol" ==> signal on mass 33 * 1.011
"acetonitrile" ==> signal on mass 42 * 1.022
"acetaldehyde" ==> signal on mass 45 * 1.022
"acetone" ==> signal on mass 59 * 1.032
"aceticacid" ==> mass 43 * 1.022 + mass 61 * 1.022
"m61DIVaceticacid" ==> ratio (mass 61 * 1.022) / "aceticacid"
"MBOisoprene" ==> mass 41 * 1.032 + mass 69 * 1.054 + mass 87 * 1.054
"m87DIVmboiso" ==> ratio (mass 87 * 1.054) / "MBOisoprene"
"m69DIVmboiso" ==> ratio (mass 69 * 1.054) / "MBOisoprene"
"hydroxyacetone" ==> signal on mass 75 * 1.032
"benzene" ==> signal on mass 79 * 1.064
"toluene" ==> signal on mass 93 * 1.075, mostly terpene fragment!
"monoterpenes" ==> mass 81 * 1.064+ mass 137 * 1.107
"m137DIVmonot" ==> ratio (mass 137) / "monoterpenes"
"MVKMACR" ==> signal on mass 71 * 1.043
"sesquiterpenes" ==> signal on mass 205 * 1.16
"methylchavicol" ==> signal on mass 149 * 1.107
"nopinone" ==> signal on mass 139 * 1.096
"pinonaldehyde" ==> signal on mass 151 * 1.107
"OX01" ==> signal on mass 111
"OX02" ==> signal on mass 113
"OX03" ==> signal on mass 141
"OX04" ==> signal on mass 159
"OX05" ==> signal on mass 163
"OX06" ==> signal on mass 191
"OX07" ==> signal on mass 195
"OX08" ==> signal on mass 105
"OX10" ==> signal on mass 145
"OX11" ==> signal on mass 173
"OX12" ==> signal on mass 177
"OX13"==> signal on mass 179
"m73" ==> MEK
"m77" ==> PAN
"m83" ==> 3 methylfuran, C6-carbonyl
"m85" ==> C6-carbonyl
"m95" ==> terpene fragment
"m99" ==>C6-carbonyl
"m101" ==>C6-carbonyl
"m115" ==> ?
"m153" ==> terpene, alcohol?
"m107" ==> terpene fragment?
"m121" ==> terpene fragment?
"m31" ==> formaldehyde, uncalibrated
"m135" ==> terpene fragment?
"m155" ==> ?
"m169" ==> ?
"m185" ==> ?
"m197" ==> ?
Datalogger column names (last set of columns in ‘Cham2005’)
"TOY" ==> datalogger, time of year
"corrO3" ==> datalogger,
"no" ==> datalogger,
"DOY" ==> datalogger,
"min" ==> datalogger,
"sec" ==> datalogger,
"Tref" ==> datalogger,
"Tair" ==> datalogger,
"Treactcham" ==> datalogger,
"CO2" ==> datalogger,
"H2O" ==> datalogger,
"PAR" ==> datalogger,
"O3" ==> datalogger,
"pTub" ==> datalogger,
"Temicham" ==> datalogger,
"stdvTref" ==> datalogger,
"stdvTair" ==> datalogger,
"stdvTreactcham" ==> datalogger,
"stdvCO2" ==> datalogger,
"stdvH2O" ==> datalogger,
"stdvPAR" ==> datalogger,
"stdvO3" ==> datalogger,
"stdvpTub" ==> datalogger,
Eddy2005, column names:
"lagtime" ==> lagtime of sample air in tubing (s)
"ws" ==> wind speed (m/s)
"wd" ==> wind direction
"meanT" ==> mean temperature
"sigmaT" ==> standard deviation of temperature
"Fsens" ==> sensible heat flux
"Fmom" ==> momentum flux
"u.star" ==>
"T.star" ==>
"zoverL" ==>
"m21" ==> H3O+ signal (cps)
"m37" == H2OH3O+ signal (cps)
"m37DIVm21"==>
"pdrift" ==>
"udrift" ==>
"tdrift" ==>
"Fm39" ==> eddy flux of water-cluster signal (not calibrated)
"Fm42" ==> eddy flux at m42 (μmol/h/m2)
"Fm69" ==> eddy flux at m69 (μmol/h/m2)
"Fm113" ==> eddy flux at m113 (mol/h/m2)
"Fm137" ==> eddy flux at m137 (mol/h/m2)
"med39" ==>
"med42" ==> median mixing ratio at m42 (ppb)
"med69" ==> median mixing ratio at m69 (ppb)
"med113" ==> median mixing ratio at m113 (ppb)
"med137" ==> median mixing ratio at m137 (ppb)
"mean39" ==>
"mean42" ==> mean mixing ratio at m42 (ppb)
"mean69" ==> mean mixing ratio at m69 (ppb)
"mean113" ==> mean mixing ratio at m113 (ppb)
"mean137" ==> mean mixing ratio at m137 (ppb)
"max39" ==>
"max42" ==>maximum mixing ratio at m42 (ppb)
"max69" ==>maximummixing ratio at m69 (ppb)
"max113" ==>maximummixing ratio at m113 (ppb)
"max137" ==>maximummixing ratio at m137 (ppb)
"cps39" ==>
"cps42" ==>median count rate at m42 (cps)
"cps69" ==>median count rate at m69 (cps)
"cps113" ==>median count rate at m113 (cps)
"cps137" ==>median count rate at m137 (cps)