Schwieger, Sarah; Dietrich, Jan; Björkman, Mats P. 
ORCID: https://orcid.org/0000-0001-5768-1976; Sarneel, Judith M.; Li, Bowen; White, Joel; Althuizen, Inge H. J. ORCID: https://orcid.org/0000-0003-3485-9609; Biasi, Christina; Björk, Robert G. ORCID: https://orcid.org/0000-0001-7346-666X; Böhner, Hanna; Bremset Hansen, Brage ORCID: https://orcid.org/0000-0001-8763-4361; Carbognani, Michele ORCID: https://orcid.org/0000-0001-7701-9859; Chiari, Giorgio; Christiansen, Casper T.; Cooper, Elisabeth J.; Cornelissen, Hans; D'Imperio, Ludovica; Dorrepaal, Ellen ORCID: https://orcid.org/0000-0002-0523-2471; Elberling, Bo ORCID: https://orcid.org/0000-0002-6023-885X; Faubert, Patrick ORCID: https://orcid.org/0000-0003-0237-3188; Fetcher, Ned ORCID: https://orcid.org/0000-0003-2604-299X; Forte, T'ai G. W.; Gaudard, Joseph ORCID: https://orcid.org/0000-0002-6989-7624; Gavazov, Konstantin ORCID: https://orcid.org/0000-0003-4479-7202; Guan, Zhen-Huan; Guðmundsson, Jón; Haugum, Siri V. ORCID: https://orcid.org/0000-0003-4958-7132; He, Jin-Sheng ORCID: https://orcid.org/0000-0001-5081-3569; Hicks Pries, Caitlin; Hovenden, Mark; Lang, Simone I. ORCID: https://orcid.org/0000-0002-6812-2528; Jespersen, Gus; Jónsdóttir, Ingibjörg S.; Jung, Ji Young ORCID: https://orcid.org/0000-0003-4583-3957; Khitun, Olga; Kortegaard Danielsen, Birgitte ORCID: https://orcid.org/0000-0001-7412-1145; Lamprecht, Richard ORCID: https://orcid.org/0000-0003-0005-0713; Le Moullec, Mathilde ORCID: https://orcid.org/0000-0002-3290-7091; Lee, Hanna ORCID: https://orcid.org/0000-0002-2003-4377; Marushchak, Maija E. ORCID: https://orcid.org/0000-0002-2308-5049; Michelsen, Anders; Munir, Tariq ORCID: https://orcid.org/0000-0002-4591-0978; Myrsky, Eero; Newsham, Kevin ORCID: https://orcid.org/0000-0002-9108-0936; Nyberg, Marion; Oberbauer, Steven F.; Olivas, Paulo; Olofsson, Johan; Óskarsson, Hlynur; Parker, Thomas C. ORCID: https://orcid.org/0000-0002-3648-5316; Petit Bon, Matteo ORCID: https://orcid.org/0000-0001-9829-8324; Petraglia, Alessandro ORCID: https://orcid.org/0000-0003-4632-2251; Pickering Pedersen, Emily ORCID: https://orcid.org/0000-0003-4880-7295; Raundrup, Katrine; Ravn, Nynne R.; Rinnan, Riikka ORCID: https://orcid.org/0000-0001-7222-700X; Rodenhizer, Heidi; Ryde, Ingvild ORCID: https://orcid.org/0000-0001-6544-1446; Salazar, Alejandro ORCID: https://orcid.org/0000-0002-0798-882X; Schmidt, Niels M.; Schuur, Ted; Sjögersten, Sofie; Skov Nielsen, Cecilie ORCID: https://orcid.org/0000-0002-6404-1288; Stark, Sari; Strack, Maria ORCID: https://orcid.org/0000-0002-8996-7271; Tang, Jianwu; Toet, Sylvia ORCID: https://orcid.org/0000-0001-7657-4607; Tolvanen, Anne; Väisänen, Maria; Van Logtestijn, Richard; Vandvik, Vigdis ORCID: https://orcid.org/0000-0003-4651-4798; Voigt, Carolina; Walz, Josefine; Welker, Jeffrey M.; Yang, Yuanhe; Ylänne, Henni; Maes, Sybryn L..
2026
TundraFlux: a database of ecosystem respiration with biotic and abiotic metadata from Arctic and alpine tundra warming experiments [Data description article].
Earth System Science Data, 18 (7).
4965-4982.
10.5194/essd-18-4965-2026
Empirical in-situ measurements of ecosystem carbon dioxide respiration (Reco) in high-latitude ecosystems remain limited, yet they are essential for understanding how tundra carbon cycling responds to climate warming across different environmental contexts and for reducing uncertainties in upscaled carbon budgets and carbon–climate feedbacks. Here, we present the TundraFlux Database, which to date is the most comprehensive synthesis of tundra Reco responses to experimental warming. The database compiles over 24 000 daily-aggregated in-situ Reco measurements from control and warmed plots with open-top chambers at 64 Arctic and alpine tundra sites across 12 countries. By coupling Reco measurements with extensive metadata on climate, vegetation, and soil characteristics, the TundraFlux Database enables the integration of field-scale ecological processes into large-scale models, offering new opportunities to refine global carbon budgets and test predictions of tundra ecosystem responses to warming. Open access to the TundraFlux Database will empower the research community to better quantify and predict how warming alters carbon cycling in Arctic and alpine tundra ecosystems. The data can be accessed on Zenodo (https://doi.org/10.5281/zenodo.17976235, Schwieger, 2026a).
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