Using excess 3He to estimate Southern Ocean upwelling time scales

Author Posting. © American Geophysical Union, 2020. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 47(15), (2020): e2020GL087266, doi:10.1029/2020GL087266. Using a...

Full description

Bibliographic Details
Published in:Geophysical Research Letters
Main Author: Jenkins, William J.
Format: Article in Journal/Newspaper
Language:unknown
Published: Wiley 2020
Subjects:
Hydrothermal budgets
Meridional overturning circulation
Marine productivity
Micronutrients
Dissolved iron
Southern Ocean upwelling
Southern Ocean
Online Access:https://hdl.handle.net/1912/26214
id ftwhoas:oai:darchive.mblwhoilibrary.org:1912/26214
record_format openpolar
spelling ftwhoas:oai:darchive.mblwhoilibrary.org:1912/26214 2023-05-15T18:24:05+02:00 Using excess 3He to estimate Southern Ocean upwelling time scales Jenkins, William J. 2020-08-04 https://hdl.handle.net/1912/26214 unknown Wiley https://doi.org/10.1029/2020GL087266 Jenkins, W. J. (2020). Using excess 3He to estimate Southern Ocean upwelling time scales. Geophysical Research Letters, 47(15), e2020GL087266. https://hdl.handle.net/1912/26214 doi:10.1029/2020GL087266 Jenkins, W. J. (2020). Using excess 3He to estimate Southern Ocean upwelling time scales. Geophysical Research Letters, 47(15), e2020GL087266. doi:10.1029/2020GL087266 Hydrothermal budgets Meridional overturning circulation Marine productivity Micronutrients Dissolved iron Southern Ocean upwelling Article 2020 ftwhoas https://doi.org/10.1029/2020GL087266 2022-10-29T22:57:20Z Author Posting. © American Geophysical Union, 2020. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 47(15), (2020): e2020GL087266, doi:10.1029/2020GL087266. Using a recently compiled global marine data set of dissolved helium isotopes and helium and neon concentrations, we make an estimate of the inventory of hydrothermal 3He in the Southern Ocean to be 4.9 ± 0.6 × 104 moles. Under the assumption that the bulk of the hydrothermally sourced 3He is upwelled there, we use recent estimates of the global hydrothermal 3He flux to determine an e‐folding residence time of 99 ± 18 years, depending on assumptions of water mass and upwelling boundaries. Our estimate is within the broad range of values obtained from recent Southern Ocean circulation models. This work was funded under the auspices of the U.S. National Science Foundation's Grant OCE‐1756138. 2021-02-04 Article in Journal/Newspaper Southern Ocean Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Southern Ocean Geophysical Research Letters 47 15
institution Open Polar
collection Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
op_collection_id ftwhoas
language unknown
topic Hydrothermal budgets
Meridional overturning circulation
Marine productivity
Micronutrients
Dissolved iron
Southern Ocean upwelling
spellingShingle Hydrothermal budgets
Meridional overturning circulation
Marine productivity
Micronutrients
Dissolved iron
Southern Ocean upwelling
Jenkins, William J.
Using excess 3He to estimate Southern Ocean upwelling time scales
topic_facet Hydrothermal budgets
Meridional overturning circulation
Marine productivity
Micronutrients
Dissolved iron
Southern Ocean upwelling
description Author Posting. © American Geophysical Union, 2020. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 47(15), (2020): e2020GL087266, doi:10.1029/2020GL087266. Using a recently compiled global marine data set of dissolved helium isotopes and helium and neon concentrations, we make an estimate of the inventory of hydrothermal 3He in the Southern Ocean to be 4.9 ± 0.6 × 104 moles. Under the assumption that the bulk of the hydrothermally sourced 3He is upwelled there, we use recent estimates of the global hydrothermal 3He flux to determine an e‐folding residence time of 99 ± 18 years, depending on assumptions of water mass and upwelling boundaries. Our estimate is within the broad range of values obtained from recent Southern Ocean circulation models. This work was funded under the auspices of the U.S. National Science Foundation's Grant OCE‐1756138. 2021-02-04
format Article in Journal/Newspaper
author Jenkins, William J.
author_facet Jenkins, William J.
author_sort Jenkins, William J.
title Using excess 3He to estimate Southern Ocean upwelling time scales
title_short Using excess 3He to estimate Southern Ocean upwelling time scales
title_full Using excess 3He to estimate Southern Ocean upwelling time scales
title_fullStr Using excess 3He to estimate Southern Ocean upwelling time scales
title_full_unstemmed Using excess 3He to estimate Southern Ocean upwelling time scales
title_sort using excess 3he to estimate southern ocean upwelling time scales
publisher Wiley
publishDate 2020
url https://hdl.handle.net/1912/26214
geographic Southern Ocean
geographic_facet Southern Ocean
genre Southern Ocean
genre_facet Southern Ocean
op_source Jenkins, W. J. (2020). Using excess 3He to estimate Southern Ocean upwelling time scales. Geophysical Research Letters, 47(15), e2020GL087266.
doi:10.1029/2020GL087266
op_relation https://doi.org/10.1029/2020GL087266
Jenkins, W. J. (2020). Using excess 3He to estimate Southern Ocean upwelling time scales. Geophysical Research Letters, 47(15), e2020GL087266.
https://hdl.handle.net/1912/26214
doi:10.1029/2020GL087266
op_doi https://doi.org/10.1029/2020GL087266
container_title Geophysical Research Letters
container_volume 47
container_issue 15
_version_ 1766204372813873152

Similar Items