Preprints
https://doi.org/10.5194/essd-2021-85
https://doi.org/10.5194/essd-2021-85

  06 Jul 2021

06 Jul 2021

Review status: this preprint is currently under review for the journal ESSD.

Reactive nitrogen fluxes over peatland and forest ecosystems using micrometeorological measurement techniques

Christian Brümmer1, Jeremy J. Rüffer1, Jean-Pierre Delorme1, Pascal Wintjen1, Frederik Schrader1, Burkhard Beudert2, Martijn Schaap3,4, and Christof Ammann5 Christian Brümmer et al.
  • 1Thünen Institute of Climate-Smart Agriculture, 38116 Braunschweig, Germany
  • 2Bavarian Forest National Park, 94481, Grafenau, Germany
  • 3TNO, Department of Climate, Air and Sustainability, Utrecht, NL-3584, The Netherlands
  • 4Institute of Meteorology, Freie Universität Berlin, 12165 Berlin, Germany
  • 5Climate and Agriculture Group, Agroscope, Reckenholzstrasse 191, 8046, Zürich, Switzerland

Abstract. Interactions of reactive nitrogen (Nr) compounds between the atmosphere and the earth's surface play a key role in atmospheric chemistry and in understanding nutrient cycling of terrestrial ecosystems. While continuous observations of inert greenhouse gases through micrometeorological flux measurements have become a common procedure, information about temporal dynamics and longer-term budgets of Nr compounds is still extremely limited. Within the framework of the research projects NITROSPHERE and FORESTFLUX, field campaigns were carried out to investigate the biosphere-atmosphere exchange of selected Nr compounds over different land surfaces. The aim of the campaigns was to test and establish novel measurement techniques in eddy-covariance setups for continuous determination of surface fluxes of ammonia (NH3) and total reactive nitrogen (∑Nr) using two different analytical devices. While high-frequency measurements of NH3 were conducted with a quantum cascade laser (QCL) absorption spectrometer, a custom-built converter called Total Reactive Atmospheric Nitrogen Converter (TRANC) connected and operated upstream of a chemiluminescence detector (CLD) was used for the measurement of ∑Nr. As high-resolution data of Nr surface-atmosphere exchange are still scarce, but highly desired for testing and validating local inferential and larger scale models, we provide access to campaign data including concentrations, fluxes, and ancillary measurements of meteorological parameters. Campaigns (n = 4) were carried out in natural (forest) and semi-natural (peatland) ecosystem types. The published datasets stress the importance of recent advancements in laser spectrometry and help improve our understanding of the temporal variability of surface-atmosphere exchange in different ecosystems, thereby providing validation opportunities for inferential models simulating the exchange of reactive nitrogen. The dataset has been placed in the Zenodo repository (http://doi.org/10.5281/zenodo.4513854; Brümmer et al., 2021) and contains individual data files for each campaign.

Christian Brümmer et al.

Status: open (extended)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2021-85', Anonymous Referee #1, 08 Sep 2021 reply

Christian Brümmer et al.

Data sets

Reactive nitrogen fluxes over peatland (Bourtanger Moor) and forest (Bavarian Forest National Park) using micrometeorological measurement techniques Brümmer, Christian, Rüffer, Jeremy J., Delorme, Jean-Pierre, Wintjen, Pascal, Schrader, Frederik, Beudert, Burkhard, Schaap, Martijn, and Ammann, Christof http://doi.org/10.5281/zenodo.4513854

Christian Brümmer et al.

Viewed

Total article views: 265 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
188 70 7 265 6 7
  • HTML: 188
  • PDF: 70
  • XML: 7
  • Total: 265
  • BibTeX: 6
  • EndNote: 7
Views and downloads (calculated since 06 Jul 2021)
Cumulative views and downloads (calculated since 06 Jul 2021)

Viewed (geographical distribution)

Total article views: 233 (including HTML, PDF, and XML) Thereof 233 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 14 Oct 2021
Download
Short summary
Field campaigns were carried out to investigate the biosphere-atmosphere exchange of selected reactive nitrogen compounds over different land surfaces using two different analytical devices for ammonia and total reactive nitrogen. The datasets improve our understanding of the temporal variability of surface-atmosphere exchange in different ecosystems, thereby providing validation opportunities for inferential models simulating the exchange of reactive nitrogen.