Modeling CO2 emissions from Arctic lakes: Model development and site-level study
Recent studies indicated that Arctic lakes play an important role in receiving, processing, and storing organic carbon exported from terrestrial ecosystems. To quantify the contribution of Arctic lakes to the global carbon cycle, we developed a one-dimensional process-based Arctic Lake Biogeochemist...
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/214976 2023-06-11T04:08:10+02:00 Modeling CO2 emissions from Arctic lakes: Model development and site-level study Tan, Zeli Zhuang, Qianlai Shurpali, Narasinha J. Marushchak, Maija E. Biasi, Christina Eugster, Werner Walter Anthony, Katey 2017 application/application/pdf https://hdl.handle.net/20.500.11850/214976 https://doi.org/10.3929/ethz-b-000212376 en eng Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1002/2017ms001028 info:eu-repo/semantics/altIdentifier/wos/000413487500011 http://hdl.handle.net/20.500.11850/214976 doi:10.3929/ethz-b-000212376 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Journal of Advances in Modeling Earth Systems, 9 (5) info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftethz https://doi.org/20.500.11850/21497610.3929/ethz-b-00021237610.1002/2017ms001028 2023-05-28T23:45:27Z Recent studies indicated that Arctic lakes play an important role in receiving, processing, and storing organic carbon exported from terrestrial ecosystems. To quantify the contribution of Arctic lakes to the global carbon cycle, we developed a one-dimensional process-based Arctic Lake Biogeochemistry Model (ALBM) that explicitly simulates the dynamics of organic and inorganic carbon in Arctic lakes. By realistically modeling water mixing, carbon biogeochemistry, and permafrost carbon loading, the model can reproduce the seasonal variability of CO2 fluxes from the study Arctic lakes. The simulated area-weighted CO2 fluxes from yedoma thermokarst lakes, nonyedoma thermokarst lakes, and glacial lakes are 29.5, 13.0, and 21.4 g C m−2 yr−1, respectively, close to the observed values (31.2, 17.2, and 16.5 ± 7.7 g C m−2 yr−1, respectively). The simulations show that the high CO2 fluxes from yedoma thermokarst lakes are stimulated by the biomineralization of mobilized labile organic carbon from thawing yedoma permafrost. The simulations also imply that the relative contribution of glacial lakes to the global carbon cycle could be the largest because of their much larger surface area and high biomineralization and carbon loading. According to the model, sunlight-induced organic carbon degradation is more important for shallow nonyedoma thermokarst lakes but its overall contribution to the global carbon cycle could be limited. Overall, the ALBM can simulate the whole-lake carbon balance of Arctic lakes, a difficult task for field and laboratory experiments and other biogeochemistry models. ISSN:1942-2466 Article in Journal/Newspaper Arctic permafrost Thermokarst ETH Zürich Research Collection Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) |
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Open Polar |
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ETH Zürich Research Collection |
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ftethz |
language |
English |
description |
Recent studies indicated that Arctic lakes play an important role in receiving, processing, and storing organic carbon exported from terrestrial ecosystems. To quantify the contribution of Arctic lakes to the global carbon cycle, we developed a one-dimensional process-based Arctic Lake Biogeochemistry Model (ALBM) that explicitly simulates the dynamics of organic and inorganic carbon in Arctic lakes. By realistically modeling water mixing, carbon biogeochemistry, and permafrost carbon loading, the model can reproduce the seasonal variability of CO2 fluxes from the study Arctic lakes. The simulated area-weighted CO2 fluxes from yedoma thermokarst lakes, nonyedoma thermokarst lakes, and glacial lakes are 29.5, 13.0, and 21.4 g C m−2 yr−1, respectively, close to the observed values (31.2, 17.2, and 16.5 ± 7.7 g C m−2 yr−1, respectively). The simulations show that the high CO2 fluxes from yedoma thermokarst lakes are stimulated by the biomineralization of mobilized labile organic carbon from thawing yedoma permafrost. The simulations also imply that the relative contribution of glacial lakes to the global carbon cycle could be the largest because of their much larger surface area and high biomineralization and carbon loading. According to the model, sunlight-induced organic carbon degradation is more important for shallow nonyedoma thermokarst lakes but its overall contribution to the global carbon cycle could be limited. Overall, the ALBM can simulate the whole-lake carbon balance of Arctic lakes, a difficult task for field and laboratory experiments and other biogeochemistry models. ISSN:1942-2466 |
format |
Article in Journal/Newspaper |
author |
Tan, Zeli Zhuang, Qianlai Shurpali, Narasinha J. Marushchak, Maija E. Biasi, Christina Eugster, Werner Walter Anthony, Katey |
spellingShingle |
Tan, Zeli Zhuang, Qianlai Shurpali, Narasinha J. Marushchak, Maija E. Biasi, Christina Eugster, Werner Walter Anthony, Katey Modeling CO2 emissions from Arctic lakes: Model development and site-level study |
author_facet |
Tan, Zeli Zhuang, Qianlai Shurpali, Narasinha J. Marushchak, Maija E. Biasi, Christina Eugster, Werner Walter Anthony, Katey |
author_sort |
Tan, Zeli |
title |
Modeling CO2 emissions from Arctic lakes: Model development and site-level study |
title_short |
Modeling CO2 emissions from Arctic lakes: Model development and site-level study |
title_full |
Modeling CO2 emissions from Arctic lakes: Model development and site-level study |
title_fullStr |
Modeling CO2 emissions from Arctic lakes: Model development and site-level study |
title_full_unstemmed |
Modeling CO2 emissions from Arctic lakes: Model development and site-level study |
title_sort |
modeling co2 emissions from arctic lakes: model development and site-level study |
publisher |
Wiley-Blackwell |
publishDate |
2017 |
url |
https://hdl.handle.net/20.500.11850/214976 https://doi.org/10.3929/ethz-b-000212376 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake |
geographic_facet |
Arctic Arctic Lake |
genre |
Arctic permafrost Thermokarst |
genre_facet |
Arctic permafrost Thermokarst |
op_source |
Journal of Advances in Modeling Earth Systems, 9 (5) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2017ms001028 info:eu-repo/semantics/altIdentifier/wos/000413487500011 http://hdl.handle.net/20.500.11850/214976 doi:10.3929/ethz-b-000212376 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International |
op_doi |
https://doi.org/20.500.11850/21497610.3929/ethz-b-00021237610.1002/2017ms001028 |
_version_ |
1768381308754460672 |