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Possible errors in flux measurements due to limited digitalization

Title data

Foken, Thomas ; Babel, Wolfgang ; Thomas, Christoph:
Possible errors in flux measurements due to limited digitalization.
In: Atmospheric Measurement Techniques. Vol. 12 (February 2019) Issue 2 . - pp. 971-976.
ISSN 1867-8548
DOI: https://doi.org/10.5194/amt-12-971-2019

Official URL: Volltext

Abstract in another language

Recently reported trends of carbon dioxide uptake pose the question of whether trends may be the result of the limited digitalization of gas analysers and sonic anemometers used in the 1990s. Modifying a 12 bit digitalization and the instrument error reported for the Gill R2 and R3 sonic anemometers found elsewhere, the influence of these deficits in comparison to the now commonly used 16 bit digitalization were quantified. Both issues have an effect only on trace gas fluxes of small magnitude, mainly for the carbon dioxide rather than for the water vapour fluxes. The influence on the annual net ecosystem exchange is negligible, because other errors resulting from gap filling routines, for example, are much larger.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER150100
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Professorship Micrometeorology - Univ.-Prof. Dr. Thomas Foken
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Micrometeorology > Professorship Micrometeorology - Univ.-Prof. Dr. Christoph K. Thomas
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 25 Mar 2019 10:00
Last Modified: 25 Mar 2019 10:00
URI: https://eref.uni-bayreuth.de/id/eprint/48064