Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal
Improving our ability to monitor ocean carbonate chemistry has become a priority as the ocean continues to absorb carbon dioxide from the atmosphere. This long-term uptake is reducing the ocean pH; a process commonly known as ocean acidification. The use of satellite Earth Observation has not yet be...
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ftplymouthml:oai:plymsea.ac.uk:8836 2023-05-15T17:51:35+02:00 Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal Land, PE Findlay, HS Shutler, JD Ashton, IGC Holding, T Grouazel, A Girard-Ardhuin, F Reul, N Piollé, J-F Chapron, B Quilfen, Y Bellerby, RGJ Bhadury, P Salisbury, J Vandemark, D Sabia, R 2019-11-12 text http://plymsea.ac.uk/id/eprint/8836/ http://plymsea.ac.uk/id/eprint/8836/1/1-s2.0-S0034425719304882-main.pdf https://doi.org/10.1016/j.rse.2019.111469 en eng Elsevier http://plymsea.ac.uk/id/eprint/8836/1/1-s2.0-S0034425719304882-main.pdf Land, PE; Findlay, HS; Shutler, JD; Ashton, IGC; Holding, T; Grouazel, A; Girard-Ardhuin, F; Reul, N; Piollé, J-F; Chapron, B; Quilfen, Y; Bellerby, RGJ; Bhadury, P; Salisbury, J; Vandemark, D; Sabia, R. 2019 Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal. Remote Sensing of Environment, 235. 111469. https://doi.org/10.1016/j.rse.2019.111469 <https://doi.org/10.1016/j.rse.2019.111469> cc_by_4 CC-BY Publication - Article PeerReviewed 2019 ftplymouthml https://doi.org/10.1016/j.rse.2019.111469 2022-09-13T05:49:41Z Improving our ability to monitor ocean carbonate chemistry has become a priority as the ocean continues to absorb carbon dioxide from the atmosphere. This long-term uptake is reducing the ocean pH; a process commonly known as ocean acidification. The use of satellite Earth Observation has not yet been thoroughly explored as an option for routinely observing surface ocean carbonate chemistry, although its potential has been highlighted. We demonstrate the suitability of using empirical algorithms to calculate total alkalinity (AT) and total dissolved inorganic carbon (CT), assessing the relative performance of satellite, interpolated in situ, and climatology datasets in reproducing the wider spatial patterns of these two variables. Both AT and CT in situ data are reproducible, both regionally and globally, using salinity and temperature datasets, with satellite observed salinity from Aquarius and SMOS providing performance comparable to other datasets for the majority of case studies. Global root mean squared difference (RMSD) between in situ validation data and satellite estimates is 17 μmol kg−1 with bias < 5 μmol kg−1 for AT and 30 μmol kg−1 with bias < 10 μmol kg−1 for CT. This analysis demonstrates that satellite sensors provide a credible solution for monitoring surface synoptic scale AT and CT. It also enables the first demonstration of observation-based synoptic scale AT and CT temporal mixing in the Amazon plume for 2010–2016, complete with a robust estimation of their uncertainty. Article in Journal/Newspaper Ocean acidification Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) Remote Sensing of Environment 235 111469 |
institution |
Open Polar |
collection |
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) |
op_collection_id |
ftplymouthml |
language |
English |
description |
Improving our ability to monitor ocean carbonate chemistry has become a priority as the ocean continues to absorb carbon dioxide from the atmosphere. This long-term uptake is reducing the ocean pH; a process commonly known as ocean acidification. The use of satellite Earth Observation has not yet been thoroughly explored as an option for routinely observing surface ocean carbonate chemistry, although its potential has been highlighted. We demonstrate the suitability of using empirical algorithms to calculate total alkalinity (AT) and total dissolved inorganic carbon (CT), assessing the relative performance of satellite, interpolated in situ, and climatology datasets in reproducing the wider spatial patterns of these two variables. Both AT and CT in situ data are reproducible, both regionally and globally, using salinity and temperature datasets, with satellite observed salinity from Aquarius and SMOS providing performance comparable to other datasets for the majority of case studies. Global root mean squared difference (RMSD) between in situ validation data and satellite estimates is 17 μmol kg−1 with bias < 5 μmol kg−1 for AT and 30 μmol kg−1 with bias < 10 μmol kg−1 for CT. This analysis demonstrates that satellite sensors provide a credible solution for monitoring surface synoptic scale AT and CT. It also enables the first demonstration of observation-based synoptic scale AT and CT temporal mixing in the Amazon plume for 2010–2016, complete with a robust estimation of their uncertainty. |
format |
Article in Journal/Newspaper |
author |
Land, PE Findlay, HS Shutler, JD Ashton, IGC Holding, T Grouazel, A Girard-Ardhuin, F Reul, N Piollé, J-F Chapron, B Quilfen, Y Bellerby, RGJ Bhadury, P Salisbury, J Vandemark, D Sabia, R |
spellingShingle |
Land, PE Findlay, HS Shutler, JD Ashton, IGC Holding, T Grouazel, A Girard-Ardhuin, F Reul, N Piollé, J-F Chapron, B Quilfen, Y Bellerby, RGJ Bhadury, P Salisbury, J Vandemark, D Sabia, R Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal |
author_facet |
Land, PE Findlay, HS Shutler, JD Ashton, IGC Holding, T Grouazel, A Girard-Ardhuin, F Reul, N Piollé, J-F Chapron, B Quilfen, Y Bellerby, RGJ Bhadury, P Salisbury, J Vandemark, D Sabia, R |
author_sort |
Land, PE |
title |
Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal |
title_short |
Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal |
title_full |
Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal |
title_fullStr |
Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal |
title_full_unstemmed |
Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal |
title_sort |
optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the greater caribbean, the amazon plume and the bay of bengal |
publisher |
Elsevier |
publishDate |
2019 |
url |
http://plymsea.ac.uk/id/eprint/8836/ http://plymsea.ac.uk/id/eprint/8836/1/1-s2.0-S0034425719304882-main.pdf https://doi.org/10.1016/j.rse.2019.111469 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://plymsea.ac.uk/id/eprint/8836/1/1-s2.0-S0034425719304882-main.pdf Land, PE; Findlay, HS; Shutler, JD; Ashton, IGC; Holding, T; Grouazel, A; Girard-Ardhuin, F; Reul, N; Piollé, J-F; Chapron, B; Quilfen, Y; Bellerby, RGJ; Bhadury, P; Salisbury, J; Vandemark, D; Sabia, R. 2019 Optimum satellite remote sensing of the marine carbonate system using empirical algorithms in the global ocean, the Greater Caribbean, the Amazon Plume and the Bay of Bengal. Remote Sensing of Environment, 235. 111469. https://doi.org/10.1016/j.rse.2019.111469 <https://doi.org/10.1016/j.rse.2019.111469> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.rse.2019.111469 |
container_title |
Remote Sensing of Environment |
container_volume |
235 |
container_start_page |
111469 |
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1766158791260241920 |