Eddy_Flux.tar.xz

We downloaded the data at six temperate forest sites from the European Flux network for our model-data fusion. The in-situ observed vapor pressure, air temperature, incoming radiation, wind speed, and air pressure were used to drive iTEM. The daily time-step net ecosystem exchange (NEE) measurement using the eddy covariance method were from the Level 4 dataset. The NEE data were previously friction-velocity-filtered, gap-filled and partitioned into the component fluxes of gross primary productivity (GPP) and ecosystem respiration (Reco). The foliar 13C compositions at the six sites were obtained from the Work Package 5 (WP5, entitled "Isotopic Studies") of CARBOEUROFLUX project (http://www.weizmann.ac.il 160 /EPS/wp5/results.html).The foliar samples were generally taken from the dominant species at the sites with 2-3 fully expanded and sunlight leaves at the top canopy (https://www.weizmann.ac.il/EPS/wp5/sample.html). Compared with the continuous measurement of carbon fluxes (NEE) at these sites, the measurements were conducted every one or two months 13C during growing season.