The ABCflux database: Arctic–boreal CO<sub>2</sub> flux observations and ancillary information aggregated to monthly time steps across terrestrial ecosystems
نویسندگان
چکیده
Abstract. Past efforts to synthesize and quantify the magnitude change in carbon dioxide (CO2) fluxes terrestrial ecosystems across rapidly warming Arctic–boreal zone (ABZ) have provided valuable information but were limited their geographical temporal coverage. Furthermore, these been based on data aggregated over varying time periods, often with only minimal site ancillary data, thus limiting potential be used large-scale budget assessments. To bridge gaps, we developed a standardized monthly database of CO2 (ABCflux) that aggregates situ measurements net ecosystem exchange its derived partitioned component fluxes: gross primary productivity respiration. The span from 1989 2020 70 supporting variables describe key conditions (e.g., vegetation disturbance type), micrometeorological environmental air soil temperatures), flux measurement techniques. Here, variables, spatial distribution observations, main strengths limitations database, research opportunities it enables. In total, ABCflux includes 244 sites 6309 observations; 136 2217 observations represent tundra, 108 4092 boreal biome. estimated chamber (19 % observations), snow diffusion (3 %) eddy covariance (78 largest number collected during climatological summer (June–August; 32 %), fewer available for autumn (September–October; 25 winter (December–February; 18 spring (March–May; %). can wide array empirical, remote sensing modeling studies improve understanding regional variability better estimate ABZ budget. is openly freely online (Virkkala et al., 2021b, https://doi.org/10.3334/ORNLDAAC/1934).
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ژورنال
عنوان ژورنال: Earth System Science Data
سال: 2022
ISSN: ['1866-3516', '1866-3508']
DOI: https://doi.org/10.5194/essd-14-179-2022