http://bolin.su.se/data/martens-2022-arctic-terroc-1 Jannik Martens, Örjan Gustafsson Bolin Centre Database 2022 Datafile Marine Arctic carbon Arctic Ocean Arctic Carbon Permafrost soils Climate change Coastal erosion CASCADE Earth science > Oceans > Ocean chemistry > Biogeochemical cycles Örjan Gustafsson 2022-08-31T09:18:54+00:00 English 1 The dataset contains supplementary information to the Martens et al. (2022) study. The file `martens-ea-2022-SI-tables.xlsx` contains seven data tables, with content as detailed below: * Supplementary Table 1: Calculated accumulation (mean ± s.d.) of OC fractions per shelf sea in Tg yr⁻¹ * Supplementary Table 2: Terrestrial OC stocks in the circum-Arctic drainage basin (in Pg) * Supplementary Table 3: Results of the Integrated Carbon Release Index (I-CRI) for the circum-Arctic shelf seas * Supplementary Table 4: End members for the dual-isotope mixing model to calculate OC source fractions * Supplementary Table 5: Results of the dual-isotope source apportionment * Supplementary Table 6: Collection of sediment mass accumulation rates (MAR) from the circum-Arctic shelves * Supplementary Table 7: Radiochronological data for sediment core slices from the ESAS and the Kara Sea The file `martens-ea-2022-SI-data-1-end-member-database.xlsx` contains a large collection of ¹³C and ¹⁴C data of terrOC end member compartments (i.e. surface soil, soil and peat, deep peat, Ice Complex Deposits and marine OC) across the circum-Arctic drainage basin. The data presented in this dataset are also included in the supplementary information to the Martens et al. (2022) paper, but not in the form of separate Excel files as made available here. Please, cite the article by Martens et al. (2022) when using this dataset. This work uses spatially-distributed data on ¹³C, ¹⁴C and total OC from [The Circum-Arctic Sediment Carbon Database — CASCADE](https://bolin.su.se/data/cascade), version 2. [Matlab script for the dual-isotope source apportionment](https://git.bolin.su.se/bolin/martens-2022-arctic-terroc) is available in the Bolin Centre Code Repository.