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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/gmd-2019-359
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-2019-359
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: model description paper 04 Mar 2020

Submitted as: model description paper | 04 Mar 2020

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This preprint is currently under review for the journal GMD.

Doppio – A ROMS-based Circulation Model for the Mid-Atlantic Bight and Gulf of Maine: Configuration and comparison to integrated coastal observing network observations

Alexander Gordon Lopez, John Lewis Wilkin, and Julia Chefter Levin Alexander Gordon Lopez et al.
  • Department of Marine & Coastal Sciences, Rutgers, The State Universityof New Jersey, New Brunswick, NJ 08901, USA

Abstract. We describe Doppio, a ROMS-based model of the Mid-Atlantic Bight and Gulf of Maine regions of the northwest North Atlantic developed in anticipation of future applications to biogeochemical cycling, ecosystems, estuarine downscaling, and near-real-time forecasting. This free-running regional model is introduced with circulation simulations covering 2007–2017. The ROMS configuration choices for the model are detailed, and the forcing and boundary data choices described and explained. A comprehensive observational data set is compiled for skill assessment from satellites and in situ observations from Regional Associations of the U.S. Integrated Ocean Observing Systems, including moorings, autonomous gliders, profiling floats, surface current measuring coastal radar, and fishing fleet sensors. Doppio's performance is evaluated with respect to these observations by representation of sub-regional temperature and salinity error statistics, as well as velocity and sea level coherence spectra. Model circulation for the Mid-Atlantic Bight and Gulf of Maine is visualized alongside the mean dynamic topography to convey the model's capabilities.

Alexander Gordon Lopez et al.

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Status: open (until 29 Apr 2020)
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Alexander Gordon Lopez et al.

Alexander Gordon Lopez et al.

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Short summary
This article describes a regional circulation model, Doppio, for the Mid-Atlantic Bight and the Gulf of Maine. The model demonstrates useful skill in comparison to a comprehensive suite of observations. Development focused on achieving a model configuration that allows decadal scale simulations of physical ocean circulation that can underpin studies of ecosystems and biogeochemistry. Doppio captures the temperature and salinity stratification well, along with the large scale mean circulation.
This article describes a regional circulation model, Doppio, for the Mid-Atlantic Bight and the...
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