Published July 11, 2019 | Version v1
Journal article Open

Dissolved organic matter at the fluvial–marine transition in the Laptev Sea using in situ data and ocean colour remote sensing

  • 1. Institute for Space Sciences, Department of Earth Sciences, Freie Universität Berlin, Berlin, Germany
  • 2. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Germany
  • 3. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
  • 4. Institute of Coastal Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
  • 5. Takuvik Joint International Laboratory, Département de Biologie, Université Laval, Québec City, Canada

Description

In this article, we present the variability and characteristics of dissolved organic matter at the fluvial–marine transition in the Laptev Sea from a unique dataset collected during 11 Arctic expeditions. We develop a new relationship between dissolved organic carbon (DOC) and coloured dissolved organic matter absorption, which is used to estimate surface water DOC concentration from space. We believe that our findings help current efforts to monitor ongoing changes in the Arctic carbon cycle.

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Funding

Nunataryuk – Permafrost thaw and the changing arctic coast: science for socio-economic adaptation 773421
European Commission