Fig. 3From: The influence of near-field fluxes on seasonal carbon dioxide enhancements: results from the Indianapolis Flux Experiment (INFLUX)Percentage landcover types for a 10-km radius circle encompassing approximately 80% of the footprint for each tower using the NASS database [47, 48]. The grass category also includes hay/pasture. Towers are ordered based on urban fraction (including open-, low-, medium-, and high-density developed areas). Towers 09, 01, and 14 are potential background towersBack to article page