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

Title data

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. Vol. 151 (June 2011) Issue 6 . - pp. 655-668.
ISSN 0168-1923
DOI: https://doi.org/10.1016/j.agrformet.2010.10.001

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER91009
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Professorship Micrometeorology - Univ.-Prof. Dr. Thomas Foken
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 13 Aug 2015 06:11
Last Modified: 13 Aug 2015 06:11
URI: https://eref.uni-bayreuth.de/id/eprint/17940