OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

River discharges of carbon to the world's oceans: determining local inputs of alkalinity and of dissolved and particulate organic carbon

Ludwig, Wolfgang and Amiotte Suchet, Philippe and Probst, Jean-Luc River discharges of carbon to the world's oceans: determining local inputs of alkalinity and of dissolved and particulate organic carbon. (1996) Sciences de la terre et des planètes (Comptes rendus de l'Académie des sciences) , t. 323 . pp. 1007-1014. ISSN 1250-8050

[img]
Preview
(Document in English)

PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB

Abstract

An empirical modelling that allows a prediction the amount of atmospheric CO2 consumed by continental erosion is combined with a river-routing file in order to determine the spatial distribution of river carbon inputs to the world's oceans. The total fluvial carbon input is calculated to be 710 teragrams of carbon per year (TgC/yr). 205 TgC/yr are discharged as dissolved organic carbon, 185 TgC/yr as particulate organic carbon, and 320 TgC/yr as bicarbonate ions. Of the latter figure, 230 TgC/yr stem from the atmosphere, while the remainder 90 TgC/yr originate from carbonate mineral dissolution. The Atlantic Ocean receives the greatest amount of river carbon, followed by the Pacific Ocean, the Indian Ocean, and the Arctic Ocean. The spatial distribution of the predicted river carbon inputs may be included in further modelling studies in order to better understand the lateral transports of carbon in the present-day global carbon cycle.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Université de Bourgogne - UB (FRANCE)
Other partners > Université Louis Pasteur-Strasbourg I - ULP (FRANCE)
Laboratory name:
Statistics:download
Deposited By: Florence Amor

Repository Staff Only: item control page