Northbound Lagrangian Pathways of the Mediterranean Outflow Water and the Mechanism of Time-Dependent Chaotic Advection ...
The Mediterranean Sea releases approximately 1Sv of water into the North Atlantic through the Gibraltar Straits, forming the saline Mediterranean Outflow Water (MOW). Its impact on large-scale flow and specifically its northbound Lagrangian pathways are widely debated, yet a comprehensive overview o...
Main Authors: | , , , , |
---|---|
Format: | Report |
Language: | unknown |
Published: |
arXiv
2023
|
Subjects: | |
Online Access: | https://dx.doi.org/10.48550/arxiv.2308.10987 https://arxiv.org/abs/2308.10987 |
id |
ftdatacite:10.48550/arxiv.2308.10987 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.48550/arxiv.2308.10987 2023-10-01T03:57:58+02:00 Northbound Lagrangian Pathways of the Mediterranean Outflow Water and the Mechanism of Time-Dependent Chaotic Advection ... Saporta-Katz, Ori Mantel, Nadav Liran, Rotem Rom-Kedar, Vered Gildor, Hezi 2023 https://dx.doi.org/10.48550/arxiv.2308.10987 https://arxiv.org/abs/2308.10987 unknown arXiv Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Atmospheric and Oceanic Physics physics.ao-ph Chaotic Dynamics nlin.CD Geophysics physics.geo-ph FOS Physical sciences Preprint article Article CreativeWork 2023 ftdatacite https://doi.org/10.48550/arxiv.2308.10987 2023-09-04T14:52:34Z The Mediterranean Sea releases approximately 1Sv of water into the North Atlantic through the Gibraltar Straits, forming the saline Mediterranean Outflow Water (MOW). Its impact on large-scale flow and specifically its northbound Lagrangian pathways are widely debated, yet a comprehensive overview of MOW pathways over recent decades is lacking. We calculate and analyze synthetic Lagrangian trajectories in 1980-2020 reanalysis velocity data. 16\% of the MOW follow a direct northbound path to the sub-polar gyre, reaching a 1000m depth crossing window at the southern tip of Rockall Ridge in about 10 years. Surprisingly, time-dependent chaotic advection, not steady currents, drives over half of the northbound transport. Our results suggest a potential 15-20yr predictability in the direct northbound transport, which points to an upcoming decrease of MOW northbound transport in the next couple of decades. Additionally, monthly variability appears more significant than inter-annual variability in mixing and ... Report North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Atmospheric and Oceanic Physics physics.ao-ph Chaotic Dynamics nlin.CD Geophysics physics.geo-ph FOS Physical sciences |
spellingShingle |
Atmospheric and Oceanic Physics physics.ao-ph Chaotic Dynamics nlin.CD Geophysics physics.geo-ph FOS Physical sciences Saporta-Katz, Ori Mantel, Nadav Liran, Rotem Rom-Kedar, Vered Gildor, Hezi Northbound Lagrangian Pathways of the Mediterranean Outflow Water and the Mechanism of Time-Dependent Chaotic Advection ... |
topic_facet |
Atmospheric and Oceanic Physics physics.ao-ph Chaotic Dynamics nlin.CD Geophysics physics.geo-ph FOS Physical sciences |
description |
The Mediterranean Sea releases approximately 1Sv of water into the North Atlantic through the Gibraltar Straits, forming the saline Mediterranean Outflow Water (MOW). Its impact on large-scale flow and specifically its northbound Lagrangian pathways are widely debated, yet a comprehensive overview of MOW pathways over recent decades is lacking. We calculate and analyze synthetic Lagrangian trajectories in 1980-2020 reanalysis velocity data. 16\% of the MOW follow a direct northbound path to the sub-polar gyre, reaching a 1000m depth crossing window at the southern tip of Rockall Ridge in about 10 years. Surprisingly, time-dependent chaotic advection, not steady currents, drives over half of the northbound transport. Our results suggest a potential 15-20yr predictability in the direct northbound transport, which points to an upcoming decrease of MOW northbound transport in the next couple of decades. Additionally, monthly variability appears more significant than inter-annual variability in mixing and ... |
format |
Report |
author |
Saporta-Katz, Ori Mantel, Nadav Liran, Rotem Rom-Kedar, Vered Gildor, Hezi |
author_facet |
Saporta-Katz, Ori Mantel, Nadav Liran, Rotem Rom-Kedar, Vered Gildor, Hezi |
author_sort |
Saporta-Katz, Ori |
title |
Northbound Lagrangian Pathways of the Mediterranean Outflow Water and the Mechanism of Time-Dependent Chaotic Advection ... |
title_short |
Northbound Lagrangian Pathways of the Mediterranean Outflow Water and the Mechanism of Time-Dependent Chaotic Advection ... |
title_full |
Northbound Lagrangian Pathways of the Mediterranean Outflow Water and the Mechanism of Time-Dependent Chaotic Advection ... |
title_fullStr |
Northbound Lagrangian Pathways of the Mediterranean Outflow Water and the Mechanism of Time-Dependent Chaotic Advection ... |
title_full_unstemmed |
Northbound Lagrangian Pathways of the Mediterranean Outflow Water and the Mechanism of Time-Dependent Chaotic Advection ... |
title_sort |
northbound lagrangian pathways of the mediterranean outflow water and the mechanism of time-dependent chaotic advection ... |
publisher |
arXiv |
publishDate |
2023 |
url |
https://dx.doi.org/10.48550/arxiv.2308.10987 https://arxiv.org/abs/2308.10987 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.48550/arxiv.2308.10987 |
_version_ |
1778530236709732352 |