Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean
Source at http://dx.doi.org/10.1002/2016JC011779 This study compiles colocated oceanic observations of high-resolution vertical profiles of nitrate concentration and turbulent microstructure around the Svalbard shelf slope, covering both the permanently ice-free Fram Strait and the pack ice north of...
Published in: | Journal of Geophysical Research: Oceans |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AGU Publications
2016
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/11489 https://doi.org/10.1002/2016JC011779 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/11489 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/11489 2023-05-15T14:27:18+02:00 Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean Randelhoff, Achim Fer, Ilker Sundfjord, Arild Tremblay, Jean-Éric Reigstad, Marit 2016-07-31 https://hdl.handle.net/10037/11489 https://doi.org/10.1002/2016JC011779 eng eng AGU Publications Journal of Geophysical Research - Oceans Norges forskningsråd: 229786 Norges forskningsråd: 226415 info:eu-repo/grantAgreement/RCN/KLIMAFORSK/229786/Norway/OnThinIce// info:eu-repo/grantAgreement/RCN/POLARPROG/226415/Norway/BridgingMarineProductivityRegimes// Randelhoff A, Fer I, Sundfjord A, Tremblay J, Reigstad M. Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean. Journal of Geophysical Research - Oceans. 2016;121(7):5282-5285 FRIDAID 1380742 doi:10.1002/2016JC011779 2169-9275 2169-9291 https://hdl.handle.net/10037/11489 openAccess VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Oseanografi: 452 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Journal article Tidsskriftartikkel Peer reviewed 2016 ftunivtroemsoe https://doi.org/10.1002/2016JC011779 2021-06-25T17:55:20Z Source at http://dx.doi.org/10.1002/2016JC011779 This study compiles colocated oceanic observations of high-resolution vertical profiles of nitrate concentration and turbulent microstructure around the Svalbard shelf slope, covering both the permanently ice-free Fram Strait and the pack ice north of Svalbard. The authors present an overview over the seasonal evolution of the distribution of nitrate and its relation to upper ocean stratification. The average upward turbulent diffusive nitrate flux across the seasonal nitracline during the Arctic summer season is derived, with average values of 0.3 and 0.7 mmol m −2 d −1 for stations with and without ice cover, respectively. The increase under ice-free conditions is attributed to different patterns of stratification under sea ice versus open water. The nitrate flux obtained from microstructure measurements lacked a seasonal signal. However, bottle incubations indicate that August nitrate uptake was reduced by more than an order of magnitude relative to the May values. It remains inconclusive whether the new production was limited by an unidentified factor other than <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mrow xmlns="http://www.w3.org/1998/Math/MathML" xmlns:cr="urn://wiley-online-library/content/render" xmlns:wiley="http://www.wiley.com/namespaces/wiley/wiley" xmlns:w="http://www.wiley.com/namespaces/wiley"><mi>N</mi><mrow><msubsup><mi>O</mi><mn>3</mn><mo>−</mo></msubsup></mrow></mrow></mml:math> supply in late summer, or the uptake was underestimated by the incubation method. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Fram Strait Sea ice Svalbard University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Svalbard Journal of Geophysical Research: Oceans 121 7 5282 5295 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Oseanografi: 452 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Oseanografi: 452 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Randelhoff, Achim Fer, Ilker Sundfjord, Arild Tremblay, Jean-Éric Reigstad, Marit Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Oseanografi: 452 VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 |
description |
Source at http://dx.doi.org/10.1002/2016JC011779 This study compiles colocated oceanic observations of high-resolution vertical profiles of nitrate concentration and turbulent microstructure around the Svalbard shelf slope, covering both the permanently ice-free Fram Strait and the pack ice north of Svalbard. The authors present an overview over the seasonal evolution of the distribution of nitrate and its relation to upper ocean stratification. The average upward turbulent diffusive nitrate flux across the seasonal nitracline during the Arctic summer season is derived, with average values of 0.3 and 0.7 mmol m −2 d −1 for stations with and without ice cover, respectively. The increase under ice-free conditions is attributed to different patterns of stratification under sea ice versus open water. The nitrate flux obtained from microstructure measurements lacked a seasonal signal. However, bottle incubations indicate that August nitrate uptake was reduced by more than an order of magnitude relative to the May values. It remains inconclusive whether the new production was limited by an unidentified factor other than <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mrow xmlns="http://www.w3.org/1998/Math/MathML" xmlns:cr="urn://wiley-online-library/content/render" xmlns:wiley="http://www.wiley.com/namespaces/wiley/wiley" xmlns:w="http://www.wiley.com/namespaces/wiley"><mi>N</mi><mrow><msubsup><mi>O</mi><mn>3</mn><mo>−</mo></msubsup></mrow></mrow></mml:math> supply in late summer, or the uptake was underestimated by the incubation method. |
format |
Article in Journal/Newspaper |
author |
Randelhoff, Achim Fer, Ilker Sundfjord, Arild Tremblay, Jean-Éric Reigstad, Marit |
author_facet |
Randelhoff, Achim Fer, Ilker Sundfjord, Arild Tremblay, Jean-Éric Reigstad, Marit |
author_sort |
Randelhoff, Achim |
title |
Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean |
title_short |
Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean |
title_full |
Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean |
title_fullStr |
Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean |
title_full_unstemmed |
Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean |
title_sort |
vertical fluxes of nitrate in the seasonal nitracline of the atlantic sector of the arctic ocean |
publisher |
AGU Publications |
publishDate |
2016 |
url |
https://hdl.handle.net/10037/11489 https://doi.org/10.1002/2016JC011779 |
geographic |
Arctic Arctic Ocean Svalbard |
geographic_facet |
Arctic Arctic Ocean Svalbard |
genre |
Arctic Arctic Arctic Ocean Fram Strait Sea ice Svalbard |
genre_facet |
Arctic Arctic Arctic Ocean Fram Strait Sea ice Svalbard |
op_relation |
Journal of Geophysical Research - Oceans Norges forskningsråd: 229786 Norges forskningsråd: 226415 info:eu-repo/grantAgreement/RCN/KLIMAFORSK/229786/Norway/OnThinIce// info:eu-repo/grantAgreement/RCN/POLARPROG/226415/Norway/BridgingMarineProductivityRegimes// Randelhoff A, Fer I, Sundfjord A, Tremblay J, Reigstad M. Vertical fluxes of nitrate in the seasonal nitracline of the Atlantic sector of the Arctic Ocean. Journal of Geophysical Research - Oceans. 2016;121(7):5282-5285 FRIDAID 1380742 doi:10.1002/2016JC011779 2169-9275 2169-9291 https://hdl.handle.net/10037/11489 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1002/2016JC011779 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
121 |
container_issue |
7 |
container_start_page |
5282 |
op_container_end_page |
5295 |
_version_ |
1766300986650918912 |