@article{fdi:010083290,
  title = {{D}escription of a global marine particulate organic carbon-13 isotope data set [{D}ata paper]},
  author = {{V}erwega, {M}. {T}. and {S}omes, {C}. {J}. and {S}chartau, {M}. and {T}uerena, {R}. {E}. and {L}orrain, {A}nne and {O}schlies, {A}. and {S}lawig, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}arine particulate organic carbon stable isotope ratios (delta {C}-13({POC})) provide insights into understanding carbon cycling through the atmosphere, ocean and biosphere. {T}hey have for example been used to trace the input of anthropogenic carbon in the marine ecosystem due to the distinct isotopically light signature of anthropogenic emissions. {H}owever, delta {C}-13({POC}) is also significantly altered during photosynthesis by phytoplankton, which complicates its interpretation. {F}or such purposes, robust spatio-temporal coverage of delta {C}-13({POC}) observations is essential. {W}e collected all such available data sets and merged and homogenized them to provide the largest available marine delta {C}-13({POC}) data set (https://doi.org/10.1594/{PANGAEA}.929931; {V}erwega et al., 2021). {T}he data set consists of 4732 data points covering all major ocean basins beginning in the 1960s. {W}e describe the compiled raw data, compare different observational methods, and provide key insights in the temporal and spatial distribution that is consistent with previously observed large-scale patterns. {T}he main different sample collection methods (bottle, intake, net, trap) are generally consistent with each other when comparing within regions. {A}n analysis of 1990s median delta {C}-13({POC}) values in a meridional section across the best-covered {A}tlantic {O}cean shows relatively high values (>= -22 parts per thousand) in the low latitudes (<30 degrees) trending towards lower values in the {A}rctic {O}cean (similar to -24 parts per thousand) and {S}outhern {O}cean (<= -28 parts per thousand). {T}he temporal trend since the 1960s shows a decrease in the median delta {C}-13({POC}) by more than 3 parts per thousand in all basins except for the {S}outhern {O}cean, which shows a weaker trend but contains relatively poor multi-decadal coverage.},
  keywords = {{MONDE}},
  booktitle = {},
  journal = {{E}arth {S}ystem {S}cience {D}ata},
  volume = {13},
  numero = {10},
  pages = {4861--4880},
  ISSN = {1866-3508},
  year = {2021},
  DOI = {10.5194/essd-13-4861-2021},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083290},
}