ABCFlux v2: Arctic-Boreal CO2 and CH4 In-situ Flux and Environmental Data

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doi:https://doi.org/10.3334/ORNLDAAC/2448

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ABCFlux v2: Arctic-Boreal CO2 and CH4 In-situ Flux and Environmental Data

Overview

DOI	https://doi.org/10.3334/ORNLDAAC/2448
Version	1
Project	ABoVE
Published	2026-04-21

Download Data5.4 MB User Guide

Description

This dataset is a synthesis of terrestrial and freshwater CO2 and CH4 fluxes from the Arctic-Boreal region aggregated to monthly timesteps. The dataset, known as ABCFlux v2, includes 1,024 unique sites and spans 1984-2024 with the majority of observations occurring after 1999. ABCFlux v2 includes surface-atmosphere CO2 fluxes of net ecosystem exchange (NEE), gross primary production (GPP), and ecosystem respiration (Reco) alongside CH4 fluxes. For aquatic ecosystems, CH4 fluxes were split into diffusive and ebullitive flux pathways and included potential emissions from transient storage in the water column, alongside CO2 and CH4 concentrations dissolved in the surface water. Fluxes were measured through a variety of methods including chamber and eddy covariance techniques alongside bubble traps, ice-surveys, and concentration-based turbulence-driven modeling in aquatic ecosystems. Supporting variables include methodological metadata (e.g., gap-filling methods, number of chamber measurement days), environmental measurements (e.g., air, water, and soil temperatures), and site-level attributes (e.g., permafrost thaw status, disturbance history). Compared with version 1, this v2 dataset includes additional variables to represent detailed descriptions of plant functional types, deep soil temperatures (<10 cm), and permafrost thaw presence or absence in the top two meters. Data pertaining to CH4 fluxes were also added that were not included in previous version. The data are provided in two comma separated values (CSV) files that separate terrestrial and aquatic sites.

Science Keywords

Data Use and Citation

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Virkkala, A-M., I. Wargowsky, J. Vogt, M. Kuhn, S. Madaan, R. O'Keefe, T. Windholz, K.A. Arndt, B. Rogers, J.D. Watts, M. Goeckede, E.A.G. Schuur, G. Rocher-Ros, D. Bastviken, D. Olefeldt, K. Kent, K. Aalstad, K. Aho, J. Ala-Konni, H. Alcock, I. Althuizen, C.D. Arp, J. Asanuma, K. Attermeyer, M. Aurela, S. Balathandayuthabani, A. Barr, M. Barret, O. Batkhishig, C. Biasi, M.P. Bjorkman, T.A. Black, E. Blanc-Betes, P. Bodmer, J. Boike, A. Bolek, F. Bouchard, I. Bussmann, L. Cabrol, E. Canfora, S. Carey, K. Castro-Morales, N. Chae, A. Christen, T.R. Christensen, C.T. Christiansen, H. Chu, G. Clark, F. Clayer, P.M. Crill, C. Cunada, S.J. Davidson, J.F. Dean, S. Dengel, M. Detto, C. Dieleman, F. Domine, E. Dyukarev, C. Edgar, B. Elberling, C.A. Emmerton, S.E. Euskirchen, G. Falvo, T. Friborg, M. Garneau, M. Giamberini, M.V. Glagolev, M.A. Gonzalez-Meler, G. Granath, J. Gudmundsson, K. Happonen, Y. Harazono, L. Harris, J. Hashemi, N. Hasson, J. Heerah, L. Heffernan, M. Helbig, W. Helgason, M. Heliasz, G. Henry, G. Hensgens, T. Hiyama, M. Hock, D. Holl, B. Holmes, J. Holst, T. Holst, G. Hould-Gosselin, E. Humphreys, J.K.Y. Hung, J. Huotari, H. Ikawa, D.V. Ilyasov, M. Ishikawa, G. Iwahana, H. Iwata, M.A. Jackowicz-Korczynski, J. Jansen, J. Jarveoja, V.E. Jassey, R. Jensen, K. Jentzsch, R.G. Jespersen, C. Johannesson, C.P. Jones, A. Jonsson, J.Y. Jung, S. Juutinen, E.S. Kane, J. Karlsson, S. Karsanaev, K. Kasak, J. Kelly, K. Kempton, M. Klaus, G.W. Kling, N. Kljun, J. Knutson, H. Kobayashi, J. Kochendorfer, K. Kohonen, P. Kolari, M. Korkiakoski, A. Korrensalo, P. Kortelainen, E. Koster, K. Koster, A. Kotani, P. Krishnan, J. Kurbatova, L. Kutzbach, M.J. Kwon, E.D. Kyzivat, J. Lagroix, T. Langhorst, E. Lapshina, T. Larmola, K. Larsen, I. Laurion, J. Ledman, H. Lee, A.J. Leffler, L. Lesack, A. Lindroth, D. Lipson, A. Lohila, E. Lopez-Blanco, V.L. St. Louis, E. Lundin, M. Luoto, T. Machimura, M. Magnani, A. Malhotra, M. Maljanen, I. Mammarella, E. Mannisto, L.B. Marchesini, P. Marsh, P.J. Martkainen, M.E. Marushchak, M. Mastepanov, A. Mavrovic, T. Maximov, C. Minions, M. Montemayor, T. Morishita, P. Murphy, D.F. Nadeau, E. Nicholls, M.B. Nilsson, A. Niyazova, J. Nordén, K.D. Noumonvi, H. Nykanen, W. Oechel, A. Ojala, T. Okadera, S. Pal, A.V. Panov, T. Papakyriakou, D. Papale, S.J. Park, F. Parmentier, G. Pastorello, M. Peacock, M. Peichl, R. Petrov, K.S. Pierre, N. Pirk, J. Plein, V. Preskienis, A. Prokushkin, J. Pumpanen, H.A. Rains, N. Rakos, A. Rasanen, H. Rautakoski, R. Rinnan, J. Rinne, A.V. Rocha, N.T. Roulet, A. Roy, A. Rutgersson, A.F. Sabrekov, T. Sachs, E. Sahlee, A. Salazar, H.O. Sawakuchi, C. Schulze, R. Seco, A. Sepulveda-Jauregui, S. Serikova, A. Serrone, H.M. Silvennoinen, S. Sjogersten, J. Skeeter, J. Snoalv, S. Sobek, O. Sonnentag, E.H. Stanley, M. Strack, L. Strom, P. Sullivan, R.C. Sullivan, A. Sytiuk, T. Tagesson, P. Taillardat, J. Talbot, S.E. Tank, M. Tenuta, I. Terenteva, F. Thalasso, A. Thiboult, H. Thorgeirsson, F.G. Tigreros, M. Torn, A. Townsend-Small, C. Treat, A. Tremblay, C. Trotta, E.-S. Tuittila, M. Turetsky, M. Ueyama, M. Umair, A. Vaha, L. van Delden, M. van Hardenbroek, A. Varlagin, R.K. Varner, E. Veretennikova, T. Vesala, T. Virtanen, C. Voigt, J.E. Vonk, R. Wagner, K. Walter Anthony, Q. Wang, M. Watanabe, H. Webb, J. M. Welker, A. Westergaard-Nielsen, S. Westermann, J.R. White, C. Wille, S.N. Williamson, S. Zolkos, D. Zona, and S.M. Natali. 2025. ABCFlux v2: Arctic-Boreal CO2 and CH4 In-situ Flux and Environmental Data. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2448

This dataset is openly shared, without restriction, in accordance with the NASA Earthdata Data Use Guidance.

Data Files

Dataset has 1 companion files.

Arctic_Boreal_CO2_Flux_V2.pdf

ABCFlux v2: Arctic-Boreal CO2 and CH4 In-situ Flux and Environmental Data

Overview

Description

Science Keywords

Data Use and Citation

Data Files

Companion Files

Dataset Companion Files