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Determining Atlantic Ocean province contrasts and variations

Determining Atlantic Ocean province contrasts and variations
Determining Atlantic Ocean province contrasts and variations
The Atlantic Meridional Transect (AMT) series of twenty-five cruises over the past twenty years has produced a rich depth-resolved biogeochemical in situ data resource consisting of a wealth of core variables. These multiple core datasets, key to the operation of AMT, such as temperature, salinity, oxygen and inorganic nutrients, are often only used as ancillary measurements for contextualising hypothesis-driven process studies. In this paper these core in situ variables, alongside data drawn from satellite Earth Observation (EO) and modelling, have been analysed to determine characteristic oceanic province variations encountered over the last twenty years on the AMT through the Atlantic Ocean. The EO and modelling analysis shows the variations of key environmental variables in each province, such as surface currents, the net heat flux and subsequent large scale biological responses, such as primary production. The in situ core dataset analysis allows the variation in features such as the tropical oxygen minimum zone to be quantified as well as showing clear contrasts between the provinces in nutrient stoichiometry. Such observations and relationships can be used within basin scale biogeochemical models to set realistic variation ranges.
0079-6611
19-40
Smyth, Tim
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Quartly, Graham
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Jackson, Thomas
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Tarran, Glen
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Woodward, Malcolm
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Harris, Carolyn
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Gallienne, Chris
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Thomas, Rob
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Airs, Ruth
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Cummings, Denise
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Brewin, Robert
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Kitidis, Vassilis
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Stephens, John
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Zubkov, Mike
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Rees, Andrew
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Smyth, Tim
391b980f-9798-44a8-a0ef-73a730e777c0
Quartly, Graham
fdd4fb80-e9e4-4e54-aa67-7c382343961a
Jackson, Thomas
f337341e-251e-43e3-9946-d1622d4958e6
Tarran, Glen
2784c8a8-2827-4403-a83b-2c12131c0998
Woodward, Malcolm
e90435b9-a070-40a0-a2ef-89b35a7b7541
Harris, Carolyn
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Gallienne, Chris
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Thomas, Rob
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Airs, Ruth
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Cummings, Denise
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Brewin, Robert
ba552a41-863e-495e-8739-be91409e6dec
Kitidis, Vassilis
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Stephens, John
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Zubkov, Mike
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Rees, Andrew
97833d72-87b4-4c51-ba38-301bf9b1fd16

Smyth, Tim, Quartly, Graham, Jackson, Thomas, Tarran, Glen, Woodward, Malcolm, Harris, Carolyn, Gallienne, Chris, Thomas, Rob, Airs, Ruth, Cummings, Denise, Brewin, Robert, Kitidis, Vassilis, Stephens, John, Zubkov, Mike and Rees, Andrew (2017) Determining Atlantic Ocean province contrasts and variations. Progress in Oceanography, 158, 19-40. (doi:10.1016/j.pocean.2016.12.004).

Record type: Article

Abstract

The Atlantic Meridional Transect (AMT) series of twenty-five cruises over the past twenty years has produced a rich depth-resolved biogeochemical in situ data resource consisting of a wealth of core variables. These multiple core datasets, key to the operation of AMT, such as temperature, salinity, oxygen and inorganic nutrients, are often only used as ancillary measurements for contextualising hypothesis-driven process studies. In this paper these core in situ variables, alongside data drawn from satellite Earth Observation (EO) and modelling, have been analysed to determine characteristic oceanic province variations encountered over the last twenty years on the AMT through the Atlantic Ocean. The EO and modelling analysis shows the variations of key environmental variables in each province, such as surface currents, the net heat flux and subsequent large scale biological responses, such as primary production. The in situ core dataset analysis allows the variation in features such as the tropical oxygen minimum zone to be quantified as well as showing clear contrasts between the provinces in nutrient stoichiometry. Such observations and relationships can be used within basin scale biogeochemical models to set realistic variation ranges.

Text
Smyth et al. AMT PiO SI all_edits - Accepted Manuscript
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Published date: 1 November 2017

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Local EPrints ID: 416455
URI: http://eprints.soton.ac.uk/id/eprint/416455
ISSN: 0079-6611
PURE UUID: dfff6233-e959-47de-aad2-b3ff22dc6798

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Date deposited: 19 Dec 2017 17:30
Last modified: 16 Mar 2024 06:02

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Contributors

Author: Tim Smyth
Author: Graham Quartly
Author: Thomas Jackson
Author: Glen Tarran
Author: Malcolm Woodward
Author: Carolyn Harris
Author: Chris Gallienne
Author: Rob Thomas
Author: Ruth Airs
Author: Denise Cummings
Author: Robert Brewin
Author: Vassilis Kitidis
Author: John Stephens
Author: Mike Zubkov
Author: Andrew Rees

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