Title of article
A relaxed-eddy-accumulation method for the measurement of isoprenoid canopy-fluxes using an online gas-chromatographic technique and PTR-MS simultaneously
Author/Authors
Martin Graus، نويسنده , , Armin Hansel، نويسنده , , Armin Wisthaler، نويسنده , , Christian Lindinger، نويسنده , , RENATE FORKEL، نويسنده , , Karin Hauff، نويسنده , , Matthias Klauer، نويسنده , , Andreas Pfichner، نويسنده , , Bernhard Rappengluck، نويسنده , , Dominik Steigner، نويسنده , , Rainer Steinbrecher، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
12
From page
43
To page
54
Abstract
A relaxed-eddy-accumulation set-up using an online gas-chromatographic technique and proton-transfer-reaction mass spectrometry was applied to determine isoprenoid fluxes above a Norway spruce forest in July 2001/2002. The system was quality assured and its suitability for determination of canopy fluxes of isoprenoids was demonstrated. Flux measurements of oxygenated hydrocarbons failed the data quality check due to artefacts presumably arising from line and ozone-scrubber effects. Observations of turbulent fluxes of isoprenoids during the two field experiments show good agreements with primary flux data derived from enclosure measurements and modelling results using a canopy-chemistry emission model (CACHE). For monoterpenes maximum daytime fluxes of more than were observed, isoprene fluxes reached 1– .
Keywords
Norway spruce , Biogenic volatile organic compounds (BVOC) , Proton-transfer-reaction-mass spectrometry (PTR-MS) , Relaxed-eddyaccumulation(REA) , Fluxes
Journal title
Atmospheric Environment
Serial Year
2006
Journal title
Atmospheric Environment
Record number
759239
Link To Document