A long-term (2002 to 2017) record of closed-path and open-path eddy covariance CO2 net ecosystem exchange fluxes from the Siberian Arctic

Authors

David Holl, University of Hamburg
Christian Wille, Helmhotz Centre Potsdam
Torsten Sachs, Helmholtz Centre Postdam
Peter Schreiber, Alfred Wegener Institute
Benjamin R. K. Runkle, University of Arkansas, FayettevilleFollow
Lutz Beckebanze, University of Hamburg
Moritz Langer, Alfred Wegener Institute
Julia Boike, Humboldt University, Berlin
Eva-Maria Pfeiffer, University of Hamburg
Irina Fedorova, Saint Petersburg State University
Dimitry Y. Bolshianov, Arctic and Antarctic Research Institute
Mikhail N. Grigoriev, Melnikov Permafrost Institute
Lars Kutzbach, University of Hamburg

Document Type

Article

Publication Date

2-18-2019

Keywords

carbon dioxide land-atmosphere flux

Abstract

Ground-based observations of land–atmosphere fluxes are necessary to progressively improve global climate models. Observed data can be used for model evaluation and to develop or tune process models. In arctic permafrost regions, climate–carbon feedbacks are amplified. Therefore, increased efforts to better represent these regions in global climate models have been made in recent years. We present a multi-annual time series of land–atmosphere carbon dioxide fluxes measured in situ with the eddy covariance technique in the Siberian Arctic (72◦220 N, 126◦300 E). The site is part of the international network of eddy covariance flux observation stations (FLUXNET; site ID: Ru-Sam). The data set includes consistently processed fluxes based on concentration measurements of closed-path and open-path gas analyzers. With parallel records from both sensor types, we were able to apply a site-specific correction to open-path fluxes. This correction is necessary due to a deterioration of data, caused by heat generated by the electronics of open-path gas analyzers. Parameterizing this correction for subperiods of distinct sensor setups yielded good agreement between open- and closed-path fluxes. We compiled a long-term (2002 to 2017) carbon dioxide flux time series that we additionally gap-filled with a standardized approach. The data set was uploaded to the Pangaea database and can be accessed through https://doi.org/10.1594/PANGAEA.892751.

Citation

Holl, D., Wille, C., Sachs, T., Schreiber, P., Runkle, B. R., Beckebanze, L., Langer, M., Boike, J., Pfeiffer, E., Fedorova, I., Bolshianov, D. Y., Grigoriev, M. N., & Kutzbach, L. (2019). A long-term (2002 to 2017) record of closed-path and open-path eddy covariance CO2 net ecosystem exchange fluxes from the Siberian Arctic. Earth System Science Data, 11 (1), 221-240. https://doi.org/10.5194/essd-11-221-2019

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.