46 1001
Eric Foerster (Eric.Foerster@kit.edu)
Institute of Meteorology and Climate Research (IMK), Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, P.O. Box 3640, Germany
1 | HALO | HKMS | VOC data measured with instrument HKMS (HALO Karlsruher Mass Spectrometer) a Proton Transfer Reaction - Mass Spectrometer onboard the research aircraft HALO
EM-EU-05
1 1
2017 07 17 2020 03 04
0
Time; seconds after midnight (UTC); [s]
20
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999
FOR; Formaldehyde, volume mixing ratio; [pptV]; quantified by signal integration on protonated FOR (m/z = 31)
FOR_prec; Formaldehyde, precision; [pptV];
FOR_lod; Formaldehyde, humidity dependent in-flight detection limit; [pptV]
MET; Methanol, volume mixing ratio; [pptV]; quantified by signal integration on protonated MET (m/z = 33.2)
MET_prec; Methanol, precision; [pptV];
MET_lod; Methanol, humidity dependent in-flight detection limit; [pptV]
ACN; Acetonitrile, volume mixing ratio; [pptV]; quantified by signal integration on protonated ACN (m/z = 42)
ACN_prec; Acetonitrile, precision; [pptV];
ACA; Acetaldehyde, volume mixing ratio; [pptV]; quantified by signal integration on protonated ACA (m/z = 45)
ACA_prec; Acetaldehyde, precision; [pptV];
ACE; Acetone, volume mixing ratio; [pptV]; quantified by signal integration on protonated ACE (m/z = 59)
ACE_prec; Acetone, precision; [pptV];
ISO; Isoprene, volume mixing ratio; [pptV]; quantified by signal integration on protonated ISO (m/z = 69)
ISO_prec; Isoprene, precision; [pptV];
BEN; Benzene, volume mixing ratio; [pptV]; quantified by signal integration on protonated BEN (m/z = 79)
BEN_prec; Benzene, precision; [pptV];
TOL; Toluene, volume mixing ratio; [pptV]; quantified by signal integration on protonated TOL (m/z = 93)
TOL_prec; Toluene, precision; [pptV];
XYL; Xylene, volume mixing ratio; [pptV]; quantified by signal integration on protonated XYL (m/z = 107)
XYL_prec; Xylene, precision; [pptV];
4
AT THE MOMENT NO VOC DATA FOR EM-EU-05 AVAILABLE
Unfortunately a mandatory part of the instrument (drift tube heating and temperature sensor) did not work correctly during the ~90 % of the flight.
No reliable data available.
Nonetheless, after some considerations, it could be possible to restore 80-90 % of the flight data. We just need an estimate/assumption for the drift tube temperature (~ HKMS Rack temperature). Then we can readjust our calibrations and with some larger errors the data can be made available.
8
Temporal resolution is ca. -9999 Hz.
FileName: EMERGE-EU-05_2017-07-17_HKMS_0VOCs_V03.ames
Version: V03
ChangeLog1: V01->V02: 20181025, Preliminary to first final data.
ChangeLog2: V02->V03: 20190503, Updated humidity correction, calculation of precision and accuracy; Applied bottle drift correction for MET and FOR; Applied humidity dependent background subtraction of FOR; Added VOC dependent LODs.
Data status is unspecified. Expect changes in future.
[s]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]	[pptV]
Time	FOR	FOR_prec	FOR_lod	MET	MET_prec	MET_lod	ACN	ACN_prec	ACA	ACA_prec	ACE	ACE_prec	ISO	ISO_prec	BEN	BEN_prec	TOL	TOL_prec	XYL	XYL_prec
36023	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999	-9999