27 Jul 2022
27 Jul 2022
Status: this preprint is currently under review for the journal ESSD.

MOdern River archivEs of Particulate Organic Carbon: MOREPOC

Yutian Ke1, Damien Calmels1, Julien Bouchez2, and Cécile Quantin1 Yutian Ke et al.
  • 1GEOPS, Université Paris-Saclay-CNRS, Orsay, 91405, France
  • 2Université de Paris-Cité, Institut de physique du globe de Paris, CNRS, Paris, 75005, France

Abstract. The supply of particulate organic carbon (POC) associated with terrigenous solids transported to the ocean by rivers plays a significant role in the global carbon cycle. To advance our understanding of the source, transport, and fate of fluvial POC from regional to global scales, databases of riverine POC are needed, including elemental and isotope composition data from contrasted river basins in terms of geomorphology, lithology, climate, and anthropogenic pressure. Here, we present a new, open-access, georeferenced, global database called Modern River Archives of Particulate Organic Carbon (MOREPOC) version 1.0, featuring data on POC in suspended particulate matter (SPM) collected at 231 locations across 118 major river systems. This database includes 3,424 SPM data entries, among which 2,943 with POC content, 3,260 with stable carbon isotope (δ13C) values, 2,018 with radiocarbon activity (Δ14C) values, 1,838 with total nitrogen content, and 309 with aluminum-to-silicon mass ratios (Al / Si). The MOREPOC database aims at being used by the Earth System community to build comprehensive and quantitative models for the mobilization, alteration, and fate of terrestrial POC. The database is made available on the Zenodo repository in machine-readable formats as data table and GIS shapefile at (Ke et al., 2022).

Yutian Ke et al.

Status: open (until 21 Sep 2022)

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  • RC1: 'Review of essd-2022-161', Anonymous Referee #1, 10 Aug 2022 reply

Yutian Ke et al.

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MOdern River archivEs of Particulate Organic Carbon: MOREPOC (1.0) Ke, Yutian, Calmels, Damien, Bouchez, Julien, & Quantin, Cécile

Yutian Ke et al.


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Short summary
In this paper, we introduce the largest and most comprehensive database for riverine particulate organic carbon carried by suspended particulate matter in Earth's fluvial systems. 3,424 data entries for suspended particulate matter with detailed geochemical parameters are included, and special attention goes to the elemental and isotopic carbon compositions, to better understand riverine particulate organic carbon and its role in the carbon cycle from regional to global scales.