Interannual variations in Siberian carbon uptake and carbon release period
Abstract 2, thereby weakening the annual net terrestrial carbon sink. Using the 2010–2021 atmospheric CO2 record from the Zotino Tall Tower Observatory (ZOTTO) located at 60°48′ N, 89°21′ E, this study analyses interannual changes in the timing and intensity of the carbon uptake and release periods (CUP and CRP, respectively) over central Siberia. We complement our CO2 mole fraction analysis with the atmospheric inversion results to disentangle the effects of meteorological variability from the ecosystem's response to climate variability at a regional scale. From the observational data, CRP length and amplitude significantly increased between 2010 and 2021. Similarly, CUP length and amplitude have shown a positive but weaker trend since 2010, suggesting that increased CO2 release during cold months offsets the uptake during the growing season. This suggests that during 2010–2021, climate warming did not lead to higher annual net CO2 uptake despite the enhanced growing season uptake because cold-season respiration has also increased due to warming. The observational analysis further showed the influence of two extreme events: the 2012 wildfire and the 2020 heat wave. However, analysis of the inversion-derived net ecosystem exchange flux for the ZOTTO region did not reveal these trends or extreme events. Therefore, while ZOTTO data contain substantial information on the magnitude of the Siberian carbon balance (without further data from additional stations), we could not attribute a distinct contribution of ecosystems in the ZOTTO region of influence to the observed trends and extremes.
- Location
-
Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
-
Englisch
- Bibliographic citation
-
Interannual variations in Siberian carbon uptake and carbon release period ; volume:24 ; number:14 ; year:2024 ; pages:8413-8440 ; extent:28
Atmospheric chemistry and physics ; 24, Heft 14 (2024), 8413-8440 (gesamt 28)
- Creator
- DOI
-
10.5194/acp-24-8413-2024
- URN
-
urn:nbn:de:101:1-2408061442008.588741329438
- Rights
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
-
14.08.2025, 10:48 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Tran, Dieu Anh
- Gerbig, Christoph
- Rödenbeck, Christian
- Zaehle, Sönke
Other Objects (12)
Interannual Variations in Siberian Carbon Uptake and Carbon Release Period
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Competing effects of nitrogen deposition and ozone exposure on northern hemispheric terrestrial carbon uptake and storage, 1850–2099
Competing effects of nitrogen deposition and ozone exposure on Northern hemispheric terrestrial carbon uptake and storage, 1850–2099
How does the terrestrial carbon exchange respond to interannual climatic variations? A quantification based on atmospheric CO 2 data
How does the terrestrial carbon exchange respond to inter-annual climatic variations? A quantification based on atmospheric CO 2 data
No increase is detected and modeled for the seasonal cycle amplitude of δ<sup>13</sup>C of atmospheric carbon dioxide
Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO 2
Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO 2
Modelled forest ecosystem carbon-nitrogen dynamics with integrated mycorrhizal processes under elevated CO<sub>2</sub>
Modelled forest ecosystem carbon–nitrogen dynamics with integrated mycorrhizal processes under elevated CO<sub>2</sub>
Interannual Variations in Siberian Carbon Uptake and Carbon Release Period
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Competing effects of nitrogen deposition and ozone exposure on northern hemispheric terrestrial carbon uptake and storage, 1850–2099
Competing effects of nitrogen deposition and ozone exposure on Northern hemispheric terrestrial carbon uptake and storage, 1850–2099
How does the terrestrial carbon exchange respond to interannual climatic variations? A quantification based on atmospheric CO 2 data
How does the terrestrial carbon exchange respond to inter-annual climatic variations? A quantification based on atmospheric CO 2 data
No increase is detected and modeled for the seasonal cycle amplitude of δ<sup>13</sup>C of atmospheric carbon dioxide
Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO 2
Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO 2
Modelled forest ecosystem carbon-nitrogen dynamics with integrated mycorrhizal processes under elevated CO<sub>2</sub>
Modelled forest ecosystem carbon–nitrogen dynamics with integrated mycorrhizal processes under elevated CO<sub>2</sub>
Interannual Variations in Siberian Carbon Uptake and Carbon Release Period
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Process based simulation of the European terrestrial biosphere : an evaluation of present-day and future terrestrial carbon balance estimates and their uncertainty
Competing effects of nitrogen deposition and ozone exposure on northern hemispheric terrestrial carbon uptake and storage, 1850–2099
Competing effects of nitrogen deposition and ozone exposure on Northern hemispheric terrestrial carbon uptake and storage, 1850–2099
How does the terrestrial carbon exchange respond to interannual climatic variations? A quantification based on atmospheric CO 2 data
How does the terrestrial carbon exchange respond to inter-annual climatic variations? A quantification based on atmospheric CO 2 data
No increase is detected and modeled for the seasonal cycle amplitude of δ<sup>13</sup>C of atmospheric carbon dioxide
Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO 2
Controls of terrestrial ecosystem nitrogen loss on simulated productivity responses to elevated CO 2
Modelled forest ecosystem carbon-nitrogen dynamics with integrated mycorrhizal processes under elevated CO<sub>2</sub>