Presentation Information
[p9SreT9v-01]OneArgo as a Core Component of GOOS: From Sustained Ocean Observations to
Digital Twins for Society
*Toshio Suga1 (1. WPI/AIMEC, Tohoku University (Japan))
Over the past quarter-century, the Argo program has fundamentally revolutionized our
understanding of the global ocean, serving as a backbone of modern oceanographic and
climate science. Achieved through unprecedented international cooperation and continuous
technological innovations—such as advanced battery efficiencies, satellite
communications, and robust sensor designs—the core Argo array has successfully
maintained a fleet of thousands of autonomous profiling floats. This collective global effort
has provided a wealth of high-quality, real-time data, completely transforming our ability to
monitor ocean heat content, sea-level rise, and shifting salinity patterns. The rich scientific
repository built by Argo has enabled thousands of peer-reviewed studies, refined climate
projection models, and underpinned critical assessments by the IPCC.
Today, this foundational network is undergoing its most ambitious evolution yet into
"OneArgo." Recognizing that the ocean’s challenges extend far beyond the upper two
kilometers and physical parameters, the OneArgo design comprehensively expands the
traditional array along two major frontiers: deep-ocean profiling down to six thousand
meters and the full integration of biogeochemical (BGC) sensors to monitor ocean
acidification, deoxygenation, and carbon uptake. As a core component of the Global Ocean
Observing System (GOOS), OneArgo represents the ultimate globalization of sustained
ocean observing.
However, the true value of this vast, multidimensional data can only be unlocked when it is
actively translated into actionable insights for society. In this context, the rapid
advancement and implementation of the Digital Twin of the Ocean (DTO) is not merely an
optional application, but a primary prerequisite. A functional DTO requires a continuous,
high-fidelity stream of real-time physical and biogeochemical data to continuously
synchronize its virtual models with the actual state of the ocean through advanced data
assimilation, numerical modeling, and AI-driven predictive frameworks. Without the global,
robust infrastructure of OneArgo, digital twins would lack the foundational truth needed for
high-resolution forecasting. Conversely, without the analytical and predictive frameworks of
a DTO, the full societal potential of OneArgo’s multi-parameter data cannot be fully
realized.
This presentation will review the historic milestones of the Argo community, outline the
current implementation status and future vision of OneArgo, and demonstrate—drawing on
emerging institutional frameworks like WPI-AIMEC—why the integration of observations,
modeling, and AI through co-designed digital twin technologies is indispensable for
addressing pressing societal needs, supporting the blue economy, and building a climate-
resilient future.
understanding of the global ocean, serving as a backbone of modern oceanographic and
climate science. Achieved through unprecedented international cooperation and continuous
technological innovations—such as advanced battery efficiencies, satellite
communications, and robust sensor designs—the core Argo array has successfully
maintained a fleet of thousands of autonomous profiling floats. This collective global effort
has provided a wealth of high-quality, real-time data, completely transforming our ability to
monitor ocean heat content, sea-level rise, and shifting salinity patterns. The rich scientific
repository built by Argo has enabled thousands of peer-reviewed studies, refined climate
projection models, and underpinned critical assessments by the IPCC.
Today, this foundational network is undergoing its most ambitious evolution yet into
"OneArgo." Recognizing that the ocean’s challenges extend far beyond the upper two
kilometers and physical parameters, the OneArgo design comprehensively expands the
traditional array along two major frontiers: deep-ocean profiling down to six thousand
meters and the full integration of biogeochemical (BGC) sensors to monitor ocean
acidification, deoxygenation, and carbon uptake. As a core component of the Global Ocean
Observing System (GOOS), OneArgo represents the ultimate globalization of sustained
ocean observing.
However, the true value of this vast, multidimensional data can only be unlocked when it is
actively translated into actionable insights for society. In this context, the rapid
advancement and implementation of the Digital Twin of the Ocean (DTO) is not merely an
optional application, but a primary prerequisite. A functional DTO requires a continuous,
high-fidelity stream of real-time physical and biogeochemical data to continuously
synchronize its virtual models with the actual state of the ocean through advanced data
assimilation, numerical modeling, and AI-driven predictive frameworks. Without the global,
robust infrastructure of OneArgo, digital twins would lack the foundational truth needed for
high-resolution forecasting. Conversely, without the analytical and predictive frameworks of
a DTO, the full societal potential of OneArgo’s multi-parameter data cannot be fully
realized.
This presentation will review the historic milestones of the Argo community, outline the
current implementation status and future vision of OneArgo, and demonstrate—drawing on
emerging institutional frameworks like WPI-AIMEC—why the integration of observations,
modeling, and AI through co-designed digital twin technologies is indispensable for
addressing pressing societal needs, supporting the blue economy, and building a climate-
resilient future.
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