Fig. 3: Nitrogen speciation across sampled habitats.
From: Ablation provides key macronutrients (nitrogen and phosphorous) to glacier ice algae in NW Greenland

Boxplots showing concentrations of inorganic nitrogen species (ammonium [NH₄⁺], in light blue, and total oxidized nitrogen [TON], in darker blue) across samples: weathering crust (WC), transition zone (TZ), and unweathered ice (UW), in GrIS and Qaanaaq. Boxes indicate median and interquartile ranges, while hollow points show individual measurements.