Script for dual-isotope (13C, 14C) source apportionment of organic carbon (OC) in Circum-Arctic shelf sediments
## Overview
This script uses d13C and D14C data to calculate relative proportions of surface soil, Ice Complex deposits (ICD), peat, marine OC and petrogenic carbon to marine sediment organic carbon (OC). Based on the occurrence and variability of the different terrestrial OC (terrOC) sources, different terrOC end members are used for the different shelf seas around the circum-Arctic. Hence, this method distinguishes between 10 different shelf regions with ID numbers from 1 to 10: 1. Canadian Archipelago; 2. Beaufort Sea east of 140W; 3. Beaufort Sea west of 140W; 4. Chukchi Sea; 5. East Siberian Sea, east of 160E; 6. East Siberian Sea west of 160E; 7. Laptev Sea; 8. Kara Sea; 9. Barents Sea; 10. Central Ocean. This script is based on the MCMC method published
by Andersson et al. (ES&T, DOI: 10.1021/es503855e).
## Prerequisites
This script has been run on Matlab 2021b but is also compatible with earlier versions.
## File description
An example file with input data is attached to this script ("INPUT_SourceAppOC.xlsx"). The full dataset will be made available under https://bolin.su.se/data/martens-2022-arctic-terroc-1
## Citation
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## References
Martens J, Wild B, Semiletov I, Dudarev OV, Gustafsson Ö (2022) Circum-Arctic patterns of terrestrial carbon remobilization reveal contrasting vulnerability between regions and carbon sources. In review for Nature Communications.
## Comments
Any additional useful comments. This can e.g. be roles of persons involved in creating the source code.
## Creators
Jannik Martens, Örjan Gustafsson, Birgit Wild
## Contact information
Jannik Martens
Email: jannik.martens[at]aces.su.se
Address: Department of Environmental Science, Stockholm University, Sweden
## Language
Matlab
## Publisher
Bolin Centre Code Repository
## Version
1.0.0
## Project URL
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## DOI
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## License
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## Publication date
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