Extended Data Fig. 1: Global distribution of FLUXNET2015 sites across artificial light intensity gradients.
From: Widespread influence of artificial light at night on ecosystem metabolism
White symbols indicate FLUXNET2015 sites within the latitudinal range of the harmonised nighttime light map (n = 203, see Methods). Panel a) shows number of sites and b) shows artificial light at night (ALAN) digital number (DN) averaged over site years, plotted against latitude. Bar and symbol colours in a) and b) indicate low (DN < 10), medium (DN ≥ 10 ≤ 30) and high (DN > 30) ALAN intensities. Sites for analysis in this study were selected based on replication of FLUXNET2015 sites across high, medium and low ALAN intensities (Fig. 1 in the main text, see Methods). Basemap generated with QGIS using the harmonized global nighttime light dataset32 under a Creative Commons license CC BY 4.0.
