Distribution and fluxes of dissolved organic carbon in the Arctic Ocean

Dissolved organic carbon, from marine biota excretions and decomposing detritus, is one of the main components of the carbon cycle in the ocean. In this study, an attempt was made to construct maps of the distribution and fluxes of DOC in the Arctic Ocean and the exchanges with the Pacific and Atlan...

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Main Authors: Alexander Vetrov, Evgeny Romankevich
Format: Article
Language:English
Published: Norwegian Polar Institute 2019-03-01
Series:Polar Research
Subjects:
Online Access:https://polarresearch.net/index.php/polar/article/view/3500/9177
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author Alexander Vetrov
Evgeny Romankevich
author_facet Alexander Vetrov
Evgeny Romankevich
author_sort Alexander Vetrov
collection DOAJ
description Dissolved organic carbon, from marine biota excretions and decomposing detritus, is one of the main components of the carbon cycle in the ocean. In this study, an attempt was made to construct maps of the distribution and fluxes of DOC in the Arctic Ocean and the exchanges with the Pacific and Atlantic Oceans. Because of the limited data available a multiple linear regression technique was performed to identify significant relationships between DOC (2200 samples) and hydrologic parameters (temperature and salinity), as well as depth, horizon, latitude and offshore distance. Mapping of the DOC distribution and its fluxes was carried out at 38 horizons from 5 to 4150 m depth (resolution 1°×1°). Data on temperature, salinity and meridional and zonal components of current velocities were obtained from the Ocean Re-Analysis System 4 (ORAS4) database. All these parameters were averaged for the June–October period, the season of water sampling. The import of DOC in the Arctic Ocean is estimated to be 206 ± 17Tg C yr−1, and the export is 194 ± 23Tg C yr−1, so the import–export is balanced within the errors.
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spelling doaj.art-f5c8628000184d65aa7102699962bcd82022-12-22T01:02:43ZengNorwegian Polar InstitutePolar Research1751-83692019-03-013801810.33265/polar.v38.35003500Distribution and fluxes of dissolved organic carbon in the Arctic OceanAlexander Vetrov0Evgeny Romankevich1Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, RussiaShirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, RussiaDissolved organic carbon, from marine biota excretions and decomposing detritus, is one of the main components of the carbon cycle in the ocean. In this study, an attempt was made to construct maps of the distribution and fluxes of DOC in the Arctic Ocean and the exchanges with the Pacific and Atlantic Oceans. Because of the limited data available a multiple linear regression technique was performed to identify significant relationships between DOC (2200 samples) and hydrologic parameters (temperature and salinity), as well as depth, horizon, latitude and offshore distance. Mapping of the DOC distribution and its fluxes was carried out at 38 horizons from 5 to 4150 m depth (resolution 1°×1°). Data on temperature, salinity and meridional and zonal components of current velocities were obtained from the Ocean Re-Analysis System 4 (ORAS4) database. All these parameters were averaged for the June–October period, the season of water sampling. The import of DOC in the Arctic Ocean is estimated to be 206 ± 17Tg C yr−1, and the export is 194 ± 23Tg C yr−1, so the import–export is balanced within the errors.https://polarresearch.net/index.php/polar/article/view/3500/9177DOC fluxesocean carbon cyclePacific OceanAtlantic OceanFram Strait
spellingShingle Alexander Vetrov
Evgeny Romankevich
Distribution and fluxes of dissolved organic carbon in the Arctic Ocean
Polar Research
DOC fluxes
ocean carbon cycle
Pacific Ocean
Atlantic Ocean
Fram Strait
title Distribution and fluxes of dissolved organic carbon in the Arctic Ocean
title_full Distribution and fluxes of dissolved organic carbon in the Arctic Ocean
title_fullStr Distribution and fluxes of dissolved organic carbon in the Arctic Ocean
title_full_unstemmed Distribution and fluxes of dissolved organic carbon in the Arctic Ocean
title_short Distribution and fluxes of dissolved organic carbon in the Arctic Ocean
title_sort distribution and fluxes of dissolved organic carbon in the arctic ocean
topic DOC fluxes
ocean carbon cycle
Pacific Ocean
Atlantic Ocean
Fram Strait
url https://polarresearch.net/index.php/polar/article/view/3500/9177
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