Sophy Oliver
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View article: 40 priority questions to advance understanding of the risks and opportunities of UK marine heatwaves
40 priority questions to advance understanding of the risks and opportunities of UK marine heatwaves Open
Marine heatwaves (MHWs) are periods of anomalously warm sea temperatures that are becoming increasingly recognised as ocean stressors. Globally, MHWs have impacted marine ecosystems, with significant socioeconomic implications for coastal …
View article: BORIS-2 – a benthic ecosystem model based on allometry
BORIS-2 – a benthic ecosystem model based on allometry Open
We present a model describing the population dynamics of benthic biota, feeding from a common resource that is supplied by a flux of sinking organic carbon arriving on the seafloor. By using allometric relationships for the physiological p…
View article: Where and When the Mesopelagic Carbon Budget Balances, if at All
Where and When the Mesopelagic Carbon Budget Balances, if at All Open
The ocean biological carbon pump (BCP) transports organic matter from the surface to the deep ocean. Accurately quantifying the efficiency of the BCP is essential for understanding potential climate feedbacks and entails measuring the flux…
View article: Abrupt Changes in the Timing and Magnitude of the North Atlantic Bloom Over the 21st Century
Abrupt Changes in the Timing and Magnitude of the North Atlantic Bloom Over the 21st Century Open
The North Atlantic subpolar gyre (SPG) is a key region for the North Atlantic bloom (NAB), the phytoplankton foundation of the regional food web. The NAB depends on nutrients seasonally introduced into the surface ocean by deep winter conv…
View article: Using Shortened Spin‐Ups to Speed Up Ocean Biogeochemical Model Optimization
Using Shortened Spin‐Ups to Speed Up Ocean Biogeochemical Model Optimization Open
The performance of global ocean biogeochemical models can be quantified as the misfit between modeled tracer distributions and observations, which is sought to be minimized during parameter optimization. These models are computationally ex…
View article: Abrupt Changes in the Timing and Magnitude of the North Atlantic Bloom Over the 21st Century
Abrupt Changes in the Timing and Magnitude of the North Atlantic Bloom Over the 21st Century Open
The North Atlantic subpolar gyre is a key region for the North Atlantic phytoplankton bloom (NAB), the foundation of the regional foodweb. The NAB is dependent on nutrients seasonally introduced into the surface ocean by deep winter convec…
View article: Abrupt Changes in the Timing and Magnitude of the North Atlantic Bloom Over the 21st Century
Abrupt Changes in the Timing and Magnitude of the North Atlantic Bloom Over the 21st Century Open
The North Atlantic subpolar gyre is a key region for the North Atlantic phytoplankton bloom (NAB), the foundation of the regional foodweb. The NAB is dependent on nutrients seasonally introduced into the surface ocean by deep winter convec…
View article: Water Mass Changes and Carbon Uptake by Subantarctic Pacific Waters
Water Mass Changes and Carbon Uptake by Subantarctic Pacific Waters Open
The Southern Ocean (SO) is a critical component of the global carbon cycle, acting as a significant sink for atmospheric carbon dioxide (CO2). Understanding the intricate processes governing CO2 uptake in the SO is paramount for comprehend…
View article: Supplementary materials for the article: "Where and when the mesopelagic carbon budget balances, if at all", Oliver et al., 2023
Supplementary materials for the article: "Where and when the mesopelagic carbon budget balances, if at all", Oliver et al., 2023 Open
This is the supplementary materials for the article: "Where and when the mesopelagic carbon budget balances, if at all", Oliver et al., 2023 This folder contains: MLD.mat - The annual maximum of monthly-averaged mixed layer depth (m) in EC…
View article: Supplementary materials for the article: "Where and when the mesopelagic carbon budget balances, if at all", Oliver et al., 2023
Supplementary materials for the article: "Where and when the mesopelagic carbon budget balances, if at all", Oliver et al., 2023 Open
This is the supplementary materials for the article: "Where and when the mesopelagic carbon budget balances, if at all", Oliver et al., 2023 This folder contains: MLD.mat - The annual maximum of monthly-averaged mixed layer depth (m) in EC…
View article: Interannual variability in the physical and biological drivers of carbon sequestration in the southeast Pacific Subantarctic Mode Water Formation region
Interannual variability in the physical and biological drivers of carbon sequestration in the southeast Pacific Subantarctic Mode Water Formation region Open
The uptake of carbon by the Southern Ocean plays a critical role in mitigating atmospheric CO2 increases, but its magnitude and temporal and spatial variability are still subject to large uncertainties due to the scarcity of observations, …
View article: Influence of GEOTRACES data distribution and misfit function choice on objective parameter retrieval in a marine zinc cycle model
Influence of GEOTRACES data distribution and misfit function choice on objective parameter retrieval in a marine zinc cycle model Open
Biogeochemical model behaviour for micronutrients is typically hard to constrain because of the sparsity of observational data, the difficulty of determining parameters in situ, and uncertainties in observations and models. Here, we assess…
View article: Influence of GEOTRACES data distribution and misfit function choice on objective parameter retrieval in a marine zinc cycle model
Influence of GEOTRACES data distribution and misfit function choice on objective parameter retrieval in a marine zinc cycle model Open
Biogeochemical model behaviour for micronutrients is typically hard to constrain because of the sparsity of observational data, the difficulty of determining parameters in situ, and uncertainties in observations and models. Here, we assess…
View article: A derivative-free optimisation method for global ocean biogeochemical models
A derivative-free optimisation method for global ocean biogeochemical models Open
The skill of global ocean biogeochemical models, and the earth system models in which they are embedded, can be improved by systematic calibration of the parameter values against observations. However, such tuning is seldom undertaken as t…
View article: Reply on RC3
Reply on RC3 Open
Abstract. The skill of global ocean biogeochemical models, and the earth system models in which they are embedded, can be improved by systematic calibration of the parameter values against observations. However, such tuning is seldom under…
View article: Building high accuracy emulators for scientific simulations with deep neural architecture search
Building high accuracy emulators for scientific simulations with deep neural architecture search Open
Computer simulations are invaluable tools for scientific discovery. However, accurate simulations are often slow to execute, which limits their applicability to extensive parameter exploration, large-scale data analysis, and uncertainty qu…
View article: Reply on AC1
Reply on AC1 Open
Abstract. The skill of global ocean biogeochemical models, and the earth system models in which they are embedded, can be improved by systematic calibration of the parameter values against observations. However, such tuning is seldom under…
View article: Reply on RC1
Reply on RC1 Open
Abstract. The skill of global ocean biogeochemical models, and the earth system models in which they are embedded, can be improved by systematic calibration of the parameter values against observations. However, such tuning is seldom under…
View article: Comment on gmd-2021-175
Comment on gmd-2021-175 Open
Abstract. The skill of global ocean biogeochemical models, and the earth system models in which they are embedded, can be improved by systematic calibration of the parameter values against observations. However, such tuning is seldom under…
View article: A derivative-free optimisation method for global ocean biogeochemical models
A derivative-free optimisation method for global ocean biogeochemical models Open
The performance of global ocean biogeochemical models, and the Earth System Models in which they are embedded, can be improved by systematic calibration of the parameter values against observations. However, such tuning is seldom undertake…
View article: Code and data archive to accompany "A derivative-free optimisation method for global ocean biogeochemical models", Oliver et. al. 2021
Code and data archive to accompany "A derivative-free optimisation method for global ocean biogeochemical models", Oliver et. al. 2021 Open
This archive is to accompany the article: A derivative-free optimisation method for global ocean biogeochemical models, Sophy Oliver, Coralia Cartis, Iris Kriest, Simon Tett, and Samar Khatiwala. The optimisation framework used in this stu…
View article: Code and data archive to accompany "A derivative-free optimisation method for global ocean biogeochemical models", Oliver et. al. 2021
Code and data archive to accompany "A derivative-free optimisation method for global ocean biogeochemical models", Oliver et. al. 2021 Open
This archive is to accompany the article: A derivative-free optimisation method for global ocean biogeochemical models, Sophy Oliver, Coralia Cartis, Iris Kriest, Simon Tett, and Samar Khatiwala. The optimisation framework used in this stu…
View article: Ocean biogeochemical optimisation in Earth System Models
Ocean biogeochemical optimisation in Earth System Models Open
Global ocean biogeochemical models are important tools to understand the cycling of nutrients and carbon in the global ocean, and when embedded within Earth System Models allow us to investigate how the oceans interact in the past, present…
View article: Building high accuracy emulators for scientific simulations with deep neural architecture search
Building high accuracy emulators for scientific simulations with deep neural architecture search Open
Computer simulations are invaluable tools for scientific discovery. However, accurate simulations are often slow to execute, which limits their applicability to extensive parameter exploration, large-scale data analysis, and uncertainty qu…
View article: Up to two billion times acceleration of scientific simulations with deep neural architecture search
Up to two billion times acceleration of scientific simulations with deep neural architecture search Open
Computer simulations are invaluable tools for scientific discovery. However, accurate simulations are often slow to execute, which limits their applicability to extensive parameter exploration, large-scale data analysis, and uncertainty qu…