FLUXNET-CH4: a global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands
Methane (CH4) emissions from natural landscapes constitute roughly half of global CH4 contributions to the atmosphere, yet large uncertainties remain in the absolute magnitude and the seasonality of emission quantities and drivers. Eddy covariance (EC) measurements of CH4 flux are ideal for constrai...
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/501403 2023-05-15T15:15:51+02:00 FLUXNET-CH4: a global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands Delwiche, Kyle B. Knox, Sara Helen Malhotra, Avni Fluet-Chouinard, Etienne McNicol, Gavin Feron, Sarah Ouyang, Zutao Papale, Dario Trotta, Carlo Canfora, Eleonora Cheah, You-Wei Christianson, Danielle Alberto, Ma. Carmelita R. Alekseychik, Pavel Aurela, Mika Baldocchi, Dennis Bansal, Sheel Billesbach, David P. Bohrer, Gil Bracho, Rosvel Buchmann, Nina Campbell, David I. Celis, Gerardo Chen, Jiquan Chen, Weinan Chu, Housen Hörtnagl, Lukas 2021-07 application/application/pdf https://hdl.handle.net/20.500.11850/501403 https://doi.org/10.3929/ethz-b-000501403 en eng Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/essd-13-3607-2021 info:eu-repo/semantics/altIdentifier/wos/000679888800004 info:eu-repo/grantAgreement/SNF/Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)/148992 info:eu-repo/grantAgreement/SNF/Forschungsinfrastrukturen/173691 info:eu-repo/grantAgreement/SNF/FACCE-JPI/154245 info:eu-repo/grantAgreement/EC/H2020/730944 info:eu-repo/grantAgreement/SNF/NFP 73: Gesuch/172433 http://hdl.handle.net/20.500.11850/501403 doi:10.3929/ethz-b-000501403 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International CC-BY Earth System Science Data, 13 (7) info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftethz https://doi.org/20.500.11850/501403 https://doi.org/10.3929/ethz-b-000501403 https://doi.org/10.5194/essd-13-3607-2021 2022-06-26T23:37:26Z Methane (CH4) emissions from natural landscapes constitute roughly half of global CH4 contributions to the atmosphere, yet large uncertainties remain in the absolute magnitude and the seasonality of emission quantities and drivers. Eddy covariance (EC) measurements of CH4 flux are ideal for constraining ecosystem-scale CH4 emissions due to quasi-continuous and high-temporal-resolution CH4 flux measurements, coincident carbon dioxide, water, and energy flux measurements, lack of ecosystem disturbance, and increased availability of datasets over the last decade. Here, we (1) describe the newly published dataset, FLUXNET-CH4 Version 1.0, the first open-source global dataset of CH4 EC measurements (available at https://fluxnet.org/data/fluxnet-ch4-community-product/, last access: 7 April 2021). FLUXNET-CH4 includes half-hourly and daily gap-filled and non-gap-filled aggregated CH4 fluxes and meteorological data from 79 sites globally: 42 freshwater wetlands, 6 brackish and saline wetlands, 7 formerly drained ecosystems, 7 rice paddy sites, 2 lakes, and 15 uplands. Then, we (2) evaluate FLUXNET-CH4 representativeness for freshwater wetland coverage globally because the majority of sites in FLUXNET-CH4 Version 1.0 are freshwater wetlands which are a substantial source of total atmospheric CH4 emissions; and (3) we provide the first global estimates of the seasonal variability and seasonality predictors of freshwater wetland CH4 fluxes. Our representativeness analysis suggests that the freshwater wetland sites in the dataset cover global wetland bioclimatic attributes (encompassing energy, moisture, and vegetation-related parameters) in arctic, boreal, and temperate regions but only sparsely cover humid tropical regions. Seasonality metrics of wetland CH4 emissions vary considerably across latitudinal bands. In freshwater wetlands (except those between 20∘ S to 20∘ N) the spring onset of elevated CH4 emissions starts 3 d earlier, and the CH4 emission season lasts 4 d longer, for each degree Celsius increase in mean ... Article in Journal/Newspaper Arctic ETH Zürich Research Collection Arctic |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
description |
Methane (CH4) emissions from natural landscapes constitute roughly half of global CH4 contributions to the atmosphere, yet large uncertainties remain in the absolute magnitude and the seasonality of emission quantities and drivers. Eddy covariance (EC) measurements of CH4 flux are ideal for constraining ecosystem-scale CH4 emissions due to quasi-continuous and high-temporal-resolution CH4 flux measurements, coincident carbon dioxide, water, and energy flux measurements, lack of ecosystem disturbance, and increased availability of datasets over the last decade. Here, we (1) describe the newly published dataset, FLUXNET-CH4 Version 1.0, the first open-source global dataset of CH4 EC measurements (available at https://fluxnet.org/data/fluxnet-ch4-community-product/, last access: 7 April 2021). FLUXNET-CH4 includes half-hourly and daily gap-filled and non-gap-filled aggregated CH4 fluxes and meteorological data from 79 sites globally: 42 freshwater wetlands, 6 brackish and saline wetlands, 7 formerly drained ecosystems, 7 rice paddy sites, 2 lakes, and 15 uplands. Then, we (2) evaluate FLUXNET-CH4 representativeness for freshwater wetland coverage globally because the majority of sites in FLUXNET-CH4 Version 1.0 are freshwater wetlands which are a substantial source of total atmospheric CH4 emissions; and (3) we provide the first global estimates of the seasonal variability and seasonality predictors of freshwater wetland CH4 fluxes. Our representativeness analysis suggests that the freshwater wetland sites in the dataset cover global wetland bioclimatic attributes (encompassing energy, moisture, and vegetation-related parameters) in arctic, boreal, and temperate regions but only sparsely cover humid tropical regions. Seasonality metrics of wetland CH4 emissions vary considerably across latitudinal bands. In freshwater wetlands (except those between 20∘ S to 20∘ N) the spring onset of elevated CH4 emissions starts 3 d earlier, and the CH4 emission season lasts 4 d longer, for each degree Celsius increase in mean ... |
format |
Article in Journal/Newspaper |
author |
Delwiche, Kyle B. Knox, Sara Helen Malhotra, Avni Fluet-Chouinard, Etienne McNicol, Gavin Feron, Sarah Ouyang, Zutao Papale, Dario Trotta, Carlo Canfora, Eleonora Cheah, You-Wei Christianson, Danielle Alberto, Ma. Carmelita R. Alekseychik, Pavel Aurela, Mika Baldocchi, Dennis Bansal, Sheel Billesbach, David P. Bohrer, Gil Bracho, Rosvel Buchmann, Nina Campbell, David I. Celis, Gerardo Chen, Jiquan Chen, Weinan Chu, Housen Hörtnagl, Lukas |
spellingShingle |
Delwiche, Kyle B. Knox, Sara Helen Malhotra, Avni Fluet-Chouinard, Etienne McNicol, Gavin Feron, Sarah Ouyang, Zutao Papale, Dario Trotta, Carlo Canfora, Eleonora Cheah, You-Wei Christianson, Danielle Alberto, Ma. Carmelita R. Alekseychik, Pavel Aurela, Mika Baldocchi, Dennis Bansal, Sheel Billesbach, David P. Bohrer, Gil Bracho, Rosvel Buchmann, Nina Campbell, David I. Celis, Gerardo Chen, Jiquan Chen, Weinan Chu, Housen Hörtnagl, Lukas FLUXNET-CH4: a global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands |
author_facet |
Delwiche, Kyle B. Knox, Sara Helen Malhotra, Avni Fluet-Chouinard, Etienne McNicol, Gavin Feron, Sarah Ouyang, Zutao Papale, Dario Trotta, Carlo Canfora, Eleonora Cheah, You-Wei Christianson, Danielle Alberto, Ma. Carmelita R. Alekseychik, Pavel Aurela, Mika Baldocchi, Dennis Bansal, Sheel Billesbach, David P. Bohrer, Gil Bracho, Rosvel Buchmann, Nina Campbell, David I. Celis, Gerardo Chen, Jiquan Chen, Weinan Chu, Housen Hörtnagl, Lukas |
author_sort |
Delwiche, Kyle B. |
title |
FLUXNET-CH4: a global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands |
title_short |
FLUXNET-CH4: a global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands |
title_full |
FLUXNET-CH4: a global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands |
title_fullStr |
FLUXNET-CH4: a global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands |
title_full_unstemmed |
FLUXNET-CH4: a global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands |
title_sort |
fluxnet-ch4: a global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands |
publisher |
Copernicus |
publishDate |
2021 |
url |
https://hdl.handle.net/20.500.11850/501403 https://doi.org/10.3929/ethz-b-000501403 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Earth System Science Data, 13 (7) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/essd-13-3607-2021 info:eu-repo/semantics/altIdentifier/wos/000679888800004 info:eu-repo/grantAgreement/SNF/Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)/148992 info:eu-repo/grantAgreement/SNF/Forschungsinfrastrukturen/173691 info:eu-repo/grantAgreement/SNF/FACCE-JPI/154245 info:eu-repo/grantAgreement/EC/H2020/730944 info:eu-repo/grantAgreement/SNF/NFP 73: Gesuch/172433 http://hdl.handle.net/20.500.11850/501403 doi:10.3929/ethz-b-000501403 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.11850/501403 https://doi.org/10.3929/ethz-b-000501403 https://doi.org/10.5194/essd-13-3607-2021 |
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