First eddy covariance flux measurements by PTR-TOF
The recently developed PTR-TOF instrument was evaluated to measure methanol fluxes emitted from grass land using the eddy covariance method. The high time resolution of the PTR-TOF allowed storing full mass spectra up to <i>m/z</i> 315 with a frequency of 10 Hz. Three iso...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2010-03-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | http://www.atmos-meas-tech.net/3/387/2010/amt-3-387-2010.pdf |
| _version_ | 1819177690319552512 |
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| author | M. Müller M. Graus T. M. Ruuskanen R. Schnitzhofer I. Bamberger L. Kaser T. Titzmann L. Hörtnagl G. Wohlfahrt T. Karl A. Hansel |
| author_facet | M. Müller M. Graus T. M. Ruuskanen R. Schnitzhofer I. Bamberger L. Kaser T. Titzmann L. Hörtnagl G. Wohlfahrt T. Karl A. Hansel |
| author_sort | M. Müller |
| collection | DOAJ |
| description | The recently developed PTR-TOF instrument was evaluated to measure methanol fluxes emitted from grass land using the eddy covariance method. The high time resolution of the PTR-TOF allowed storing full mass spectra up to <i>m/z</i> 315 with a frequency of 10 Hz. Three isobaric ions were found at a nominal mass of <i>m/z</i> 33 due to the high mass resolving power of the PTR-TOF. Only one of the three peaks contributed to eddy covariance fluxes. The exact mass of this peak agrees well with the exact mass of protonated methanol (<i>m/z</i> 33.0335). The eddy covariance methanol fluxes measured with PTR-TOF were compared to virtual disjunct eddy covariance methanol fluxes simultaneously measured with a conventional PTR-MS. The methanol fluxes from both instruments show excellent agreement. |
| first_indexed | 2024-12-22T21:30:40Z |
| format | Article |
| id | doaj.art-82073c0bac92486a88d4992cd1b55abd |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-12-22T21:30:40Z |
| publishDate | 2010-03-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-82073c0bac92486a88d4992cd1b55abd2022-12-21T18:11:55ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482010-03-013238739510.5194/amt-3-387-2010First eddy covariance flux measurements by PTR-TOFM. MüllerM. GrausT. M. RuuskanenR. SchnitzhoferI. BambergerL. KaserT. TitzmannL. HörtnaglG. WohlfahrtT. KarlA. HanselThe recently developed PTR-TOF instrument was evaluated to measure methanol fluxes emitted from grass land using the eddy covariance method. The high time resolution of the PTR-TOF allowed storing full mass spectra up to <i>m/z</i> 315 with a frequency of 10 Hz. Three isobaric ions were found at a nominal mass of <i>m/z</i> 33 due to the high mass resolving power of the PTR-TOF. Only one of the three peaks contributed to eddy covariance fluxes. The exact mass of this peak agrees well with the exact mass of protonated methanol (<i>m/z</i> 33.0335). The eddy covariance methanol fluxes measured with PTR-TOF were compared to virtual disjunct eddy covariance methanol fluxes simultaneously measured with a conventional PTR-MS. The methanol fluxes from both instruments show excellent agreement.http://www.atmos-meas-tech.net/3/387/2010/amt-3-387-2010.pdf |
| spellingShingle | M. Müller M. Graus T. M. Ruuskanen R. Schnitzhofer I. Bamberger L. Kaser T. Titzmann L. Hörtnagl G. Wohlfahrt T. Karl A. Hansel First eddy covariance flux measurements by PTR-TOF Atmospheric Measurement Techniques |
| title | First eddy covariance flux measurements by PTR-TOF |
| title_full | First eddy covariance flux measurements by PTR-TOF |
| title_fullStr | First eddy covariance flux measurements by PTR-TOF |
| title_full_unstemmed | First eddy covariance flux measurements by PTR-TOF |
| title_short | First eddy covariance flux measurements by PTR-TOF |
| title_sort | first eddy covariance flux measurements by ptr tof |
| url | http://www.atmos-meas-tech.net/3/387/2010/amt-3-387-2010.pdf |
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