Results of particulate organic carbon (POC) and particulate organic nitrogen (PON) samplings and sensor-based high-resolution POC predictions from campaign ARCTIC2018 (Transdrift XXIV). Samples for POC and PON 100 µm as well as sensor data for prediction were obtained in August and September 2018 in the Laptev and East Sibirian Sea as well as the Nansen and Amundsen Basin onboard RV Akademik Tryoshnikov.This dataset presents the results of the sensor-based high-resolution POC estimation. POC 100 µm was estimated using a regression between factor (a) and exponent (b) of a power law regression describing the shape of the transformed relative cumulative particle size distribution measured using Underwater Vision Profiler 5hd as well as total particle volume ( 100 µm (see https://doi.pangaea.de/10.1594/PANGAEA.947376). For details see Rogge et al. 2022 (doi:10.21203/rs.3.rs-1617794/v1).