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Title: The ABCflux database: Arctic–boreal CO2 flux observations and ancillary information aggregated to monthly time steps across terrestrial ecosystems

Journal Article · · Earth System Science Data (Online)
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  1. Woodwell Climate Research Center, Falmouth, MA (United States)
  2. Univ. of Texas at El Paso, TX (United States)
  3. Northern Arizona Univ., Flagstaff, AZ (United States)
  4. Columbia Univ., Palisades, NY (United States)
  5. Univ. of Alberta, Edmonton, AB (Canada)
  6. Max Planck Institute for Biogeochemistry, Jena (Germany)
  7. Dalhousie Univ., Halifax, NS (Canada); Univ. of Montreal, QC (Canada)
  8. Univ. Hamburg (Germany)
  9. Shinshu Univ., Matsumoto (Japan)
  10. Japan Agency for Marine-Earth Science and Technology, Yokohama (Japan)
  11. Univ. of Helsinki (Finland)
  12. Greenland Inst. of Natural Resources, Nuuk (Greenland); Aarhus Univ. (Denmark)
  13. Univ. of Eastern Finland, Kuopio (Finland); Univ. of Jyväskylä (Finland)
  14. Univ. of Eastern Finland, Kuopio (Finland); Univ. of Oulu, Kuusamo (Finland)
  15. Agroscope, Zurich (Switzerland)
  16. Univ. of Oslo (Norway); Lund Univ. (Sweden)
  17. Swedish Univ. of Agricultural Sciences, Umeå (Sweden)
  18. GFZ German Research Centre for Geosciences, Potsdam (Germany)
  19. Univ. of Montreal, QC (Canada)
  20. Osaka Prefecture Univ., Sakai (Japan)
  21. Univ. of Eastern Finland, Kuopio (Finland); Dalhousie Univ., Halifax, NS (Canada)
  22. Finnish Meteorological Inst., Helsinki (Finland)
  23. Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Potsdam (Germany); Humboldt-Univ. zu Berlin (Germany)
  24. Univ. of Florida, Gainesville, FL (United States)
  25. Korea Univ., Seoul (Korea, Republic of)
  26. Aarhus Univ. (Denmark)
  27. Univ. of Alaska, Fairbanks, AK (United States)
  28. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  29. Vrije Univ. Amsterdam (The Netherlands)
  30. Univ. of Copenhagen (Denmark)
  31. Swedish Univ. of Agricultural Sciences, Uppsala (Sweden)
  32. Carleton Univ., Ottawa, ON (Canada)
  33. Swedish University of Agricultural Sciences, Umea (Sweden)
  34. Nagoya Univ. (Japan)
  35. Finnish Meteorological Inst., Helsinki (Finland); Univ. of Helsinki (Finland)
  36. Forestry and Forest Products Research Inst., Tsukuba (Japan)
  37. Univ. of Montreal, QC (Canada); Environment and Climate Change Canada, Victoria, BC (Canada)
  38. Florida International Univ. (FIU), Miami, FL (United States)
  39. Korea Polar Research Inst., Incheon (Korea, Republic of)
  40. Siberian Branch of the Russian Academy of Sciences, Yakutsk (Russia)
  41. Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk (Russia)
  42. Univ. of Montreal, QC (Canada); Univ. of Alberta, Edmonton, AB (Canada)
  43. Univ. of Eastern Finland, Joensuu (Finland)
  44. Wilfrid Laurier Univ., Waterloo, ON (Canada)
  45. Russian Academy of Sciences (RAS), Moscow (Russian Federation)
  46. San Diego State Univ., CA (United States)
+ Show Author Affiliations

Past efforts to synthesize and quantify the magnitude and change in carbon dioxide (CO2) fluxes in terrestrial ecosystems across the rapidly warming Arctic–boreal zone (ABZ) have provided valuable information but were limited in their geographical and temporal coverage. Furthermore, these efforts have been based on data aggregated over varying time periods, often with only minimal site ancillary data, thus limiting their potential to be used in large-scale carbon budget assessments. To bridge these gaps, we developed a standardized monthly database of Arctic–boreal CO2 fluxes (ABCflux) that aggregates in situ measurements of terrestrial net ecosystem CO2 exchange and its derived partitioned component fluxes: gross primary productivity and ecosystem respiration. The data span from 1989 to 2020 with over 70 supporting variables that describe key site conditions (e.g., vegetation and disturbance type), micrometeorological and environmental measurements (e.g., air and soil temperatures), and flux measurement techniques. Here, we describe these variables, the spatial and temporal distribution of observations, the main strengths and limitations of the database, and the potential research opportunities it enables. In total, ABCflux includes 244 sites and 6309 monthly observations; 136 sites and 2217 monthly observations represent tundra, and 108 sites and 4092 observations represent the boreal biome. The database includes fluxes estimated with chamber (19 % of the monthly observations), snow diffusion (3 %) and eddy covariance (78 %) techniques. The largest number of observations were collected during the climatological summer (June–August; 32 %), and fewer observations were available for autumn (September–October; 25 %), winter (December–February; 18 %), and spring (March–May; 25 %). ABCflux can be used in a wide array of empirical, remote sensing and modeling studies to improve understanding of the regional and temporal variability in CO2 fluxes and to better estimate the terrestrial ABZ CO2 budget.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1892031
Journal Information:
Earth System Science Data (Online), Vol. 14, Issue 1; ISSN 1866-3516
Publisher:
Copernicus PublicationsCopyright Statement
Country of Publication:
United States
Language:
English

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