Dissolved organic matter in the Lena Delta in 2009 ...

Large Arctic rivers discharge significant amounts of dissolved organic matter (DOM) into the Arctic Ocean. We sampled natural waters of the Lena River, the Buor-Khaya Bay (Laptev Sea), permafrost melt water creeks, ice complex melt water creeks and a lake. The goal of this study was to characterize...

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Bibliographic Details
Main Authors: Dubinenkov, Ivan, Flerus, Ruth, Schmitt-Kopplin, Philippe, Kattner, Gerhard, Koch, Boris P
Format: Dataset
Language:English
Published: PANGAEA 2014
Subjects:
Sample ID
DATE/TIME
Location type
LATITUDE
LONGITUDE
Depth, bathymetric
DEPTH, water
Carbon, organic, dissolved
Nitrogen, total dissolved
Multiple investigations
High temperature catalytic oxidation
RU-Land_2009_Lena
AWI Arctic Land Expedition
Coastal Ecology @ AWI AWI_Coast
Arctic Ocean
Ice
laptev
Laptev Sea
lena delta
lena river
permafrost
Online Access:https://dx.doi.org/10.1594/pangaea.831765
https://doi.pangaea.de/10.1594/PANGAEA.831765
Description
Summary:Large Arctic rivers discharge significant amounts of dissolved organic matter (DOM) into the Arctic Ocean. We sampled natural waters of the Lena River, the Buor-Khaya Bay (Laptev Sea), permafrost melt water creeks, ice complex melt water creeks and a lake. The goal of this study was to characterize the molecular DOM composition with respect to different water bodies within the Lena Delta. We aimed at an identification of source-specific DOM molecular markers and their relative contribution to DOM of different origin. The molecular characterization was performed for solid-phase extracted DOM by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Average dissolved organic carbon concentrations in the original samples were 490±75 µmol C/L for riverine and bay samples and 399±115 µmol C/L for permafrost melt water creeks. Average TDN concentrations were elevated in the permafrost melt waters (19.7±7.1 µmol N/L) in comparison to the river and the bay (both 13.2±2.6 µmol N/L). FT-ICR MS and ... : Supplement to: Dubinenkov, Ivan; Flerus, Ruth; Schmitt-Kopplin, Philippe; Kattner, Gerhard; Koch, Boris P (2014): Origin-specific molecular signatures of dissolved organic matter in the Lena Delta. Biogeochemistry, 123(1-2), 1-14 ...

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