Major terrestrial contribution to the dissolved organic carbon budget in the Arctic Ocean

This dataset is used in the study to quantify terrestrial dissolved organic concentration and inventory in the Central Arctic Ocean.
The meaning of each column name are as follows:
sample_tag: defined name for each sample;
category: types of samples, including ocean, lead, pooled_sample, and srfa_standard;
Station, Latitude, Longitude: sampling location during the MOSAiC expedition;
date: sampling date during the MOSAiC expedition;
Region: sampling region during the MOSAiC expedition;
Depth_m: sampling depth (m) during the MOSAiC expedition;
temperature_degree_Celsius: temperature (°C) for each sample;
Salinity: salinity for each sample;
DOC_micromol_L: DOC concentration (µmol L⁻¹) for each sample;
DOC_micromol_kg: DOC concentration (µmol kg⁻¹) for each sample;
delta13C: stable carbon isotope δ13C for each sample;
FDOMsum: integrated FDOM intensity (R.U.) for each sample;
C475_RU: FDOM component C475 (R.U.) for each sample;
TAI: total assigned intensity for each sample;
retention_time_segment: LC-FTMS data was divided into ten retention time segments (one-minute intervals) between 13.3 min and 23.3 min;
retention_time_min: each segment starting time (min);
peak_id: each peak in all retention time segments and samples has unique peak_id;
mf: molecular formula in each peak_id;
i_magnitude: magnitude for molecular formula in each peak_id.