20-22 June 2018
Trieste (Italy)
Europe/Rome timezone

Optimal navigation with ocean currents: the VISIR ship routing model

22 Jun 2018, 09:15
Marconi (Trieste (Italy))


Trieste (Italy)

Stazione Marittima
Paper Ship digitalization, unmanned vehicle and cyber security Weather Routing and Environment Modeling


Dr Gianandrea Mannarini (CMCC)


A new development of the VISIR ship routing model ([Mannarini et al, Geosci. Model Dev., 9(4):1597-1625, 2016][1]) is here presented. The first version of the model has powered an operational service in the Mediterranean Sea (www.visir-nav.com) for about 3 years. Its source-code is distributed with an open policy ([www.visir-model.net][2]). The new developments target large ocean-going vessels (such as cargo vessels, tankers, and cruise ships) and also accounts for ocean currents. In order to effectively use currents in a graph-search method, new equations are derived and validated versus an analytical benchmark. Also, a case study is computed in the Atlantic Ocean, using surface current fields from a data-assimilative global ocean model. The results are discussed with a focus on assessing limits and potentiality of the algorithm for solving a path optimization problem in presence of dynamic currents. VISIR as a community model will contribute to the energy efficiency of vessel operation (IMO SEEMP) through optimization of the route duration on the basis of forecast ocean state. [1]: https://www.geosci-model-dev.net/9/1597/2016/ [2]: http://www.visir-model.net

Primary author


Dr Giovanni Coppini (CMCC) Prof. Nadia Pinardi (University of Bologna)

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