Today, a manuscript detailing the comprehensive documentation of the Python-coded VISIR-2 ship routing model has been released. VISIR-2, an open-source model, is designed to calculate least-CO2 routes in the presence of waves and currents. Additionally, it determines least-time routes for sailboats, considering both currents and leeway. This modular, Python-coded system has been validated and is Read more about VISIR-2: both preprint and source code published[…]

The EMOD-PACE (EMODnet PArtnership for China and Europe) project now displays VISIR-2 routes on its map viewer. Least-CO2 routes of a 800 TEU feeder (a small container ship) calling at Singapore and other harbours along the maritime silk road can be explored via the viewer. The routes were computed for several months and departures dates Read more about VISIR-2 routes on the EMOD-PACE map viewer[…]

The GUTTA-VISIR system (here a video-tutorial) was presented by Gianandrea Mannarini in the frame of the “decarbonisation” session of the “Journey of a droplet to the ocean of decarbonisation” workshop, chaired by the journalist Marina Lalovic. The presentation regarded the functioning of the system, devised for computing least-CO2 ferry routes from wave and current forecasting Read more about GUTTA-VISIR presented at international workshop[…]

The beta version of a service for operational ship routing for ferries in the Adriatic Sea was released on Oct.8, 2021. The service, called GUTTA-VISIR, allows the user to browse CO2-optimal routes, taking into account wave and sea current forecasts. GUTTA-VISIR enables discovery of optimal routes with several departure dates and times, and even for Read more about GUTTA-VISIR released in beta[…]

A minor bug has been detected in VISIR-1.b released code. It does not affect any of the published results but might have an impact on future developments, especially those making use of wave or wind direction. It is recommended to get the patch documentation and bug fix from the Download section.

The source code of VISIR-1.b (Mannarini & Carelli, Geosci. Model Dev., 2019) can also be downloaded  from Zenodo. The VISIR release published on Zenodo is identical to the one on www.visir-model.net and includes all files and documentation necessary for running the simulations shown in the paper and preparing the figures. Should you experience any troubles Read more about VISIR model source code on Zenodo[…]

Is it possible to compare two ship routing models based on different methods to each other? How to do it? We evaluated VISIR (which is based on a graph-search method) vs. a Partial Differential Equations model by the Massachusetts Institute of Technology. We also assessed a criterium for convergence to a common truth. Find all Read more about VISIR compared to a MIT model[…]

A software developer position is available to support the Applications Research Unit (lead: Gianandrea Mannarini) of the OPA Division of CMCC, in Lecce (Italy). Successful candidates will be engaged in processing both observed and model maritime data, and in particular in:  supporting VISIR model code developments porting/recoding/re-engineering/developing new numerical procedures based on heterogeneous maritime data Read more about new job post: Software Developer for the Digital Ocean Applications[…]

A new milestone in VISIR development is now achieved: following last February’s publication of the model source code on Zenodo, a peer-reviewed paper describing the new model version 1.b has been published this week on the Geoscientific Model Development journal. The paper includes derivation of the equations for vessel advection from ocean currents, validation of Read more about VISIR-1.b: peer-reviewed paper and source code published[…]

The presentation “Preliminary Inter-comparison of AIS Data and Optimal Ship Tracks” by G.Mannarini, L.Carelli, D.Zissis, G.Spiliopoulos, and K.Chatzikokolakis has received the best presentation award at TransNav2019, the 13th International Conference on marine navigation and safety of sea transportation (Gdynia, Poland, June 12-14 2019). The prize was awarded by Prof. Adam Weintrit of the Gdynia Maritime University and the winning presentation Read more about VISIR and AIS presentation wins the best presentation award at TransNav2019[…]