December 2024

Observing platforms for studying climate change and biodiversity in coastal areas and lagoons – a focus on the Venice Lagoon use-case

Filippo Campagnaro, OES Young Professional for 2023-2024, Assistant Professor at the Department of Information Engineering of the University of Padova, co-founder of SubSeaPulse SRL.

Figure 1. Filippo Campagnaro presented the OES YP Boost program and the OES Oceans Decade Initiative.

During the last day of the 2024 IEEE OES International Workshop on Metrology for the Sea (MetroSea), which took place in Portorož, Slovenia, from October 14th to 16th, our Young Professional Boost laureate Filippo Campagnaro and  Maurizio Migliaccio elected to AdCom member for coming year organized a panel titled “Observing Platforms for Studying Climate Change and Biodiversity in Coastal Areas and Lagoons – A Focus on the Venice Lagoon Use-Case.”

During the panel, the IEEE OES YP Boost program and the activities of the United Nations Decade of Ocean Science for Sustainable Development (UN Decade) were highlighted. It was emphasized how OES is engaged with the UN Decade through several activities under the umbrella of the OES Oceans Decade Initiative (ODI), as advances in ocean technology can significantly enhance our knowledge for protecting and preserving the sea. Traditional data collection methods in ocean observations are often time-consuming, expensive, and require physical sampling in challenging environments. Collaborations with marine biologists, aquaculturists, and oceanic engineers can offer a set of cost-effective and scalable solutions to automate this process through autonomous vessels and wireless real-time sensor networks. Only a cross-disciplinary approach can address the challenges imposed by the Decade, including (but not limited to) those related to ecosystem health assessment, building community resilience, and equitable access to data and technology, demonstrating the power of collaboration in tackling complex environmental issues. Many research activities have been performed in these aspects in recent years: this panel focused on the peculiar use-case of the Venice Lagoon located only two hours’ drive from Portorož, the location of the workshop, which presents a very heterogeneous environment where the use of traditional observatories may be insufficient to study and safeguard such a delicate area, affected by strong tides and frequent floods.

Figure 2. Angela Pomaro presented the recent and ongoing activities of CNR ISMAR related to the Venice lagoon.

During the panel four experts presented their activities related to the safeguarding of the Venice Lagoon.

First, Angela Pomaro, Senior Researcher at the Institute of Marine Sciences of the National Research Council of Italy (CNR-ISMAR), presented the activities of ISMAR in the context of several European projects and the Italian National Biodiversity Future Center (NBFC) related to observing systems for coastal areas, including the Venice Lagoon where ISMAR is located.

Second, Andrea D’Alpaos, Full Professor at the Geology Department of the University of Padova (that is located 25 miles from Venice), focused on the importance of the MOSE mobile barriers for defending Venice from floods(https://en.wikipedia.org/wiki/MOSE). He highlighted not only the positive impact of the MOSE but also the new issues introduced by such a system, which may alter the natural environment of the salt marshes and cause more corrosion, emphasizing the importance of constantly monitoring the Venice Lagoon.

Third, Fausto Ferreira, Assistant Professor at the University of Zagreb, presented the research activities conducted at the Laboratory for Underwater Systems and Technologies (LABUST) of his university. He demonstrated how unmanned autonomous robotic surface and underwater systems can be used in an integrated underwater and above-water network to monitor water quality in real time. He focused on the measurement campaign performed in the Venice Arsenal with ISMAR.

Fourth, Filippo Campagnaro, Assistant Professor at the Department of Information Engineering of the University of Padova and co-founder of SubSeaPulse, presented the research activities he is carrying out with his colleague Davide De Battisti from the Biology Department in the context of the Italian RESearch and innovation on future Telecommunications systems and networks, to make Italy more smart (RESTART: https://www.fondazione-restart.it/) program and the NBFC. These activities, performed mainly in the Piovego River in Padova (a tributary of the Venice Lagoon) and in Chioggia, in the Venice Lagoon, highlighted how the use of a few large observatories is not enough to fully characterize the Lagoon ecosystem, which is very heterogeneous due to the several intersections between rivers and channels. This calls for the deployment of a sensor network composed of hundreds of very cheap floating devices, like the

Figure 3. Andrea D’Alpaos, on the left side, presented the impact of the MOSE barriers to the Venice Lagoon ecosystem. Fausto Ferreira, on the right, presented how unmanned autonomous vehicles can be used to safeguard coastal areas.

SENSWICH platform (https://ieeexplore.ieee.org/document/10742646).

After the presentations, a round table discussion started.  Given that the round table covered a wider range of topics related to maritime technology and its applications, two other experts in the field joined the discussion: Maurizio Migliaccio (Full Professor of Electromagnetic Fields at Università degli Studi di Napoli Parthenope) and John R. Potter (Full Professor at the Norwegian University of Science and Technology, Norway).

The first topic addressed in the round table was the reasons limiting the use of robotics and automated monitoring systems in coastal areas and lagoons, even though recent project demonstrations have proven the technology is almost ready. Fausto Ferreira highlighted how using robotic devices in such environments is very challenging, and a lot of effort is required to enhance the technology readiness level from a prototype validated in a relevant environment to an actual product ready to be deployed and maintained. John R. Potter underlined how currently several people are needed to operate an AUV, while a scalable and practical operational system would require one person to operate several AUVs simultaneously, and we are still far from that point. Angela Pomaro and Maurizio Migliaccio highlighted how the use of technology is impaired by the fact that most deployments are not suitable for dynamic environments such as coastal areas and lagoons, making it difficult to determine if an unexpected measurement is due to a temporary malfunction of the sensory system or the dynamic nature of the environment.

Figure 4. Round table moderated by Filippo Campagnaro, where John R. Potter and Maurizio Migliaccio joined the other panelists to discuss how technology can help safeguard coastal areas and lagoons.

The second topic addressed by the panelists centered on the Venice Lagoon, as they discussed whether or not the MOSE barriers are enough to safeguard the population living in the coastal area of Venice and the ecosystem. Andrea D’Alpaos answered that, although the MOSE may not be enough, it is essential to at least save Venice in the near future, as proven by the unexpectedly high number of times it has been operational over the years (20 times per year, i.e., five times more than the original estimate), giving us more time to better understand the flood phenomena and perform other interventions. Angela and the other panelists highlighted how the Venice Lagoon has been strongly modified over the years, deviating the natural path of several rivers reaching the Adriatic Sea and reclaiming swamps to provide land to farmers and build a commercial port, significantly diminishing the basin area where normal tidal activity would have occurred.

Finally, the panelists discussed how to limit the risk that installing new sensors to combat climate change and maritime pollution could create more pollution itself, causing more damage than benefits. They all agreed that the only way to solve this issue is by performing a comprehensive action where data is shared between institutions, avoiding the creation of several parallel sensor networks measuring the same water properties. Only with such collaboration can this risk be mitigated.