Matches in SemOpenAlex for { <https://semopenalex.org/work/W3035580007> ?p ?o ?g. }
- W3035580007 abstract "Abstract Oceanic quantities of interest (QoIs), for example, ocean heat content or transports, are often inaccessible to direct observation, due to the high cost of instrument deployment and logistical challenges. Therefore, oceanographers seek proxies for undersampled or unobserved QoIs. Conventionally, proxy potential is assessed via statistical correlations, which measure covariability without establishing causality. This paper introduces an alternative method: quantifying dynamical proxy potential. Using an adjoint model, this method unambiguously identifies the physical origins of covariability. A North Atlantic case study illustrates our method within the ECCO (Estimating the Circulation and Climate of the Ocean) state estimation framework. We find that wind forcing along the eastern and northern boundaries of the Atlantic drives a basin‐wide response in North Atlantic circulation and temperature. Due to these large‐scale teleconnections, a single subsurface temperature observation in the Irminger Sea informs heat transport across the remote Iceland‐Scotland ridge (ISR), with a dynamical proxy potential of 19%. Dynamical proxy potential allows two equivalent interpretations: Irminger Sea subsurface temperature (i) shares 19% of its adjustment physics with ISR heat transport and (ii) reduces the uncertainty in ISR heat transport by 19% (independent of the measured temperature value), if the Irminger Sea observation is added without noise to the ECCO state estimate. With its two interpretations, dynamical proxy potential is simultaneously rooted in (i) ocean dynamics and (ii) uncertainty quantification and optimal observing system design, the latter being an emerging branch in computational science. The new method may therefore foster dynamics‐based, quantitative ocean observing system design in the coming years." @default.
- W3035580007 created "2020-06-19" @default.
- W3035580007 creator A5053014625 @default.
- W3035580007 creator A5058612077 @default.
- W3035580007 creator A5060677520 @default.
- W3035580007 creator A5068678775 @default.
- W3035580007 date "2020-08-26" @default.
- W3035580007 modified "2023-10-02" @default.
- W3035580007 title "Quantifying Dynamical Proxy Potential Through Shared Adjustment Physics in the North Atlantic" @default.
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- W3035580007 doi "https://doi.org/10.1029/2020jc016112" @default.
- W3035580007 hasPublicationYear "2020" @default.
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