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Distributed Modified Bowen Ratio Method for Surface Layer Fluxes of reactive and non-reactive Trace Gases

Titelangaben

Mayer, Jens-Christopher ; Bargsten, Anika ; Rummel, Udo ; Meixner, Franz X. ; Foken, Thomas:
Distributed Modified Bowen Ratio Method for Surface Layer Fluxes of reactive and non-reactive Trace Gases.
In: Agricultural and Forest Meteorology. Bd. 151 (Juni 2011) Heft 6 . - S. 655-668.
ISSN 0168-1923
DOI: 10.1016/j.agrformet.2010.10.001

Abstract

Modified Bowen ratio technique was used in a horizontally distributed form to determine turbulent fluxes of CO₂, H₂O, O₃, NO and NO₂ over a semi-natural grassland site in North-Eastern Germany. The applicability of the distributed variation of the modified Bowen ratio technique was proven prior to the calculation of trace gas fluxes. Turbulent NO fluxes were compared to fluxes upscaled from laboratory measurements of biogenic NO emission from soil samples, which have been taken at the field site. The NO fluxes up-scaled from laboratory measurements were slightly larger than the fluxes observed in the field. However, both NO fluxes agreed within a factor of two. Under suitable night time conditions, we performed a detailed comparison of turbulent fluxes of CO₂ and O₃ with fluxes derived by the boundary layer budget technique. While there was agreement between these fluxes in a general sense, specific deviations were observed. They could be attributed to different footprint sizes of both methods and to in-situ chemistry within the nocturnal boundary layer.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER91009
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Ehemalige Professoren
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Ehemalige Professoren > Professur Mikrometeorologie - Univ.-Prof. Dr. Thomas Foken
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 13 Aug 2015 06:11
Letzte Änderung: 13 Aug 2015 06:11
URI: https://eref.uni-bayreuth.de/id/eprint/17940