Person:
Fu, Yao

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https://hdl.handle.net/1853/77059
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https://orcid.org/0000-0003-2227-3694
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    2023 Overturning in the Subpolar North Atlantic Program (OSNAP) Technical Report: Calculation Method Summary
    (Georgia Institute of Technology, 2023-06-20) Fu, Yao ; Li, Feili ; Johns, William E. ; Lozier, M. Susan
    The Overturning in the Subpolar North Atlantic Program (OSNAP) observing system utilizes data from a suite of moorings, gliders, Argo floats, and satellite altimetry to estimate the subpolar Atlantic Meridional Overturning Circulation (MOC). The OSNAP section consists of two parts: OSNAP West extends from southern Labrador to southwestern Greenland and OSNAP East from southeastern Greenland to the coast of Scotland (Fig. 1). Since 2014 OSNAP array have been continuously monitoring the MOC, as well as the meridional heat (MHT) and freshwater (MFT) transports in the subpolar North Atlantic. Currently, the OSNAP record is 71 months (August 2014 to June 2020). Results have been published and the data is freely available at https://www.o-snap.org/data-access/. In this technical report, we synthesize the OSNAP MOC metrics calculation methods that have been documented in a series of OSNAP publications.
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    Meridional Overturning Circulation Observed by the Overturning in the Subpolar North Atlantic Program (OSNAP) Array from August 2014 to June 2020
    (Georgia Institute of Technology, 2023) Fu, Yao ; Lozier, M. Susan ; Biló, Tiago Carrilho ; Bower, Amy S. ; Cunningham, Stuart A. ; Cyr, Frédéric ; de Jong, M. Femke ; deYoung, Brad ; Drysdale, Lewis ; Fraser, Neil ; Fried, Nora ; Furey, Heather H. ; Han, Guoqi ; Handmann, Patricia ; Holliday, N. Penny ; Holte, James ; Inall, Mark E. ; Johns, William E. ; Jones, Sam ; Karstensen, Johannes ; Li, Feili ; Pacini, Astrid ; Pickart, Robert S. ; Rayner, Darren ; Straneo, Fiammetta ; Yashayaev, Igor
    An international effort, Overturning in the Subpolar North Atlantic Program (OSNAP), is a partnership among oceanographers from the US, UK, Germany, the Netherlands, Canada and China whose goal is to measure and understand what drives the Atlantic Meridional Overturning Circulation (MOC) and its variability. OSNAP is consisted of about 60 moorings that stretch from Labrador to Greenland to Scotland, providing a continuous record of the full water column, trans-basin volume transports in the subpolar North Atlantic. The first 6 years of data (August 2014 - June 2020) from the full OSNAP array has been used to produce the monthly estimates of the MOC at OSNAP. All data are freely available from www.o-snap.org.
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    Overturning in the Subpolar North Atlantic Program (OSNAP) Model Truth Code
    (Georgia Institute of Technology, 2022-07) Fortin, Anne-Sophie ; Majumder, Sudip ; Li, Feili ; Fu, Yao
    As part of an international effort, the Overturning in the Subpolar North Atlantic Program (OSNAP), is an ocean observing system that continuously measures trans-basin velocity, temperature and salinity of the full water column in the subpolar North Atlantic since 2014. As there is a broad interest in the community to compare model simulations with observational estimates, we propose a simple Python code that computes the meridional overturning circulation (MOC) from a model dataset interpolated onto the OSNAP section. Please note that this code is the beta version. We appreciate any feedback that could be useful for ulterior versions. In addition, there are ongoing efforts to make this code generalized for any model dataset in future versions.