publication . Article . Other literature type . 2018

PHOTOMINERALIZATION OF TERRIGENOUS DOC

Aarnos, Hanna; Gélinas, Yves; Kasurinen, Ville; Gu, Yufei; Puupponen, Veli-Mikko; Vähätalo, Anssi V.;
Open Access English
  • Published: 01 Feb 2018
  • Publisher: American Geophysical Union
  • Country: Finland
Abstract
When terrigenous dissolved organic carbon (tDOC) rich in chromophoric dissolved organic matter (tCDOM) enters the ocean, solar radiation mineralizes it partially into dissolved inorganic carbon (DIC). This study addresses the amount and the rates of DIC photoproduction from tDOC and the area of ocean required to photomineralize tDOC. We collected water samples from 10 major rivers, mixed them with artificial seawater, and irradiated them with simulated solar radiation to measure DIC photoproduction and the photobleaching of tCDOM. The linear relationship between DIC photoproduction and tCDOM photobleaching was used to estimate the amount of photoproduced DIC fro...
Subjects
free text keywords: liuennut orgaaninen hiili, joet, hiili, meret, valokemia, DOC, rivers, carbon, CDOM, ocean, photochemistry, APPARENT QUANTUM YIELD, NATURAL ORGANIC-MATTER, AMAZON RIVER PLUME, MICROBIAL DECOMPOSITION, LIGHT-ABSORPTION, ATLANTIC BIGHT, COASTAL OCEAN, WORLD RIVERS, GLOBAL OCEAN, HUMIC LAKE, 1172 Environmental sciences, 1171 Geosciences, Atmospheric Science, Global and Planetary Change, General Environmental Science, Environmental Chemistry, Natural organic matter, Oceanography, chemistry.chemical_element, chemistry, Absorption (electromagnetic radiation), Colored dissolved organic matter, Geology, Mineralization (biology), Terrigenous sediment, Dissolved organic carbon
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publication . Article . Other literature type . 2018

PHOTOMINERALIZATION OF TERRIGENOUS DOC

Aarnos, Hanna; Gélinas, Yves; Kasurinen, Ville; Gu, Yufei; Puupponen, Veli-Mikko; Vähätalo, Anssi V.;