| Autor: |
Holl, David, Wille, Christian, Sachs, Torsten, Schreiber, Peter, Runkle, Benjamin R. K., Beckebanze, Lutz, Langer, Moritz, Boike, Julia, Pfeiffer, Eva-Maria, Fedorova, Irina, Bolshianov, Dimitry Y., Grigoriev, Mikhail N., Kutzbach, Lars |
| Předmět: |
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| Zdroj: |
Earth System Science Data Discussions; 2018, p1-26, 26p |
| Abstrakt: |
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 multiannual time series of land-atmosphere carbon dioxide fluxes measured in situ with the eddy covariance technique in the Siberian Arctic (72°22' N, 126°30' E). The site is part of the international network of carbon dioxide flux observation stations (FLUXNET, Site ID: Ru-Sam). The dataset 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 data base and can be accessed through https://doi.pangaea.de/10.1594/PANGAEA.892751. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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