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1000 Titel
  • A simple calculation algorithm to separate high-resolution CH4 flux measurements into ebullition- and diffusion-derived components
1000 Autor/in
  1. Hoffmann, Mathias |
  2. Schulz-Hanke, Maximilian |
  3. Garcia Alba, Juana |
  4. Jurisch, Nicole |
  5. Hagemann, Ulrike |
  6. Sachs, Torsten |
  7. Sommer, Michael |
  8. Augustin, Jürgen |
1000 Erscheinungsjahr 2017
1000 LeibnizOpen
1000 Art der Datei
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2017-01-06
1000 Erschienen in
1000 Quellenangabe
  • 10: 109-118
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2017
1000 Lizenz
1000 Verlagsversion
  • http://doi.org/10.5194/amt-10-109-2017 |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • Processes driving the production, transformation and transport of methane (CH4) in wetland ecosystems are highly complex. We present a simple calculation algorithm to separate open-water CH4 fluxes measured with automatic chambers into diffusion- and ebullition-derived components. This helps to reveal underlying dynamics, to identify potential environmental drivers and, thus, to calculate reliable CH4 emission estimates. The flux separation is based on identification of ebullition-related sudden concentration changes during single measurements. Therefore, a variable ebullition filter is applied, using the lower and upper quartile and the interquartile range (IQR). Automation of data processing is achieved by using an established R script, adjusted for the purpose of CH4 flux calculation. The algorithm was validated by performing a laboratory experiment and tested using flux measurement data (July to September 2013) from a former fen grassland site, which converted into a shallow lake as a result of rewetting. Ebullition and diffusion contributed equally (46 and 55 %) to total CH4 emissions, which is comparable to ratios given in the literature. Moreover, the separation algorithm revealed a concealed shift in the diurnal trend of diffusive fluxes throughout the measurement period. The water temperature gradient was identified as one of the major drivers of diffusive CH4 emissions, whereas no significant driver was found in the case of erratic CH4 ebullition events.
1000 Fachgruppe
  1. Agrarwissenschaften |
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://frl.publisso.de/adhoc/creator/SG9mZm1hbm4sIE1hdGhpYXM=|https://frl.publisso.de/adhoc/creator/U2NodWx6LUhhbmtlLCBNYXhpbWlsaWFu|https://frl.publisso.de/adhoc/creator/R2FyY2lhIEFsYmEsIEp1YW5h|https://frl.publisso.de/adhoc/creator/SnVyaXNjaCwgTmljb2xl|https://frl.publisso.de/adhoc/creator/SGFnZW1hbm4sIFVscmlrZQ==|https://frl.publisso.de/adhoc/creator/U2FjaHMsIFRvcnN0ZW4=|https://frl.publisso.de/adhoc/creator/U29tbWVyLCBNaWNoYWVs|https://frl.publisso.de/adhoc/creator/QXVndXN0aW4sIErDvHJnZW4=
1000 Label
1000 Förderer
  1. - |
  2. Helmholtz Association of German Research Centres |
  3. Terrestrial Environmental Observatories Network (TERENO) |
1000 Fördernummer
  1. -
  2. VH-NG-821
  3. -
1000 Förderprogramm
  1. CarboZALF
  2. Helmholtz Young Investigators Group grant
  3. -
1000 Dateien
1000 Förderung
  1. 1000 joinedFunding-child
    1000 Förderer - |
    1000 Förderprogramm CarboZALF
    1000 Fördernummer -
  2. 1000 joinedFunding-child
    1000 Förderer Helmholtz Association of German Research Centres |
    1000 Förderprogramm Helmholtz Young Investigators Group grant
    1000 Fördernummer VH-NG-821
  3. 1000 joinedFunding-child
    1000 Förderer Terrestrial Environmental Observatories Network (TERENO) |
    1000 Förderprogramm -
    1000 Fördernummer -
1000 Objektart article
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1000 @id frl:6403308.rdf
1000 Erstellt am 2017-06-30T12:22:04.421+0200
1000 Erstellt von 25
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1000 Bearbeitet von 218
1000 Zuletzt bearbeitet Thu Jan 30 23:02:56 CET 2020
1000 Objekt bearb. Mon Apr 30 12:56:04 CEST 2018
1000 Vgl. frl:6403308
1000 Oai Id
  1. oai:frl.publisso.de:frl:6403308 |
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