Fig. 6.

Total N (µg L⁻¹ and µmol L⁻¹) concentration at the Samoylov Monitoring (green) from 15.9.2018 to 15.9.2019 and from the summer cruises (red, sites inside the delta). TDN (µg L⁻¹ and µmol L⁻¹) concentration from the winter cruises (half-red circles) and from the ArcticGRO station (blue square, Holmes et al. 2021) from 15.9.2018 to 15.9.2019. Discharge (black line) in m³ sec⁻¹ at the gauge station Kyusyur