How extreme river discharge events shape coastal biogeochemical dynamics: the 2024 northern Adriatic case

Di Biagio, Valeria; Querin, Stefano; Amadio, Carolina; Bolzon, Giorgio; Feudale, Laura; Piani, Stefano; Spada, Simone; Cossarini, Gianpiero

doi:10.5194/sp-7-osr10-18-2026

Articles | Volume 7-osr10

https://doi.org/10.5194/sp-7-osr10-18-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Report:

10th edition of the Copernicus Ocean State Report (OSR10)

https://doi.org/10.5194/sp-7-osr10-18-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 7-osr10

30 Sep 2026

| OSR10 | Chapter 4.4

| 30 Sep 2026 | OSR10 | Chapter 4.4

How extreme river discharge events shape coastal biogeochemical dynamics: the 2024 northern Adriatic case

Valeria Di Biagio, Stefano Querin, Carolina Amadio, Giorgio Bolzon, Laura Feudale, Stefano Piani, Simone Spada, and Gianpiero Cossarini

Data sets

River discharge and related historical data from the European Flood Awareness System EU Copernicus Emergency Management Service Product https://doi.org/10.24381/cds.e3458969

Mediterranean Sea Biogeochemistry Reanalysis EU Copernicus Marine Service Product https://doi.org/10.48670/mds-00374

Mediterranean Sea Biogeochemistry Analysis and Forecast EU Copernicus Marine Service Product https://doi.org/10.48670/mds-00358

Mediterranean Sea, Bio-Geo-Chemical, L3, daily Satellite Observations (Near Real Time) EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00297

Mediterranean Sea Physics Analysis and Forecast EU Copernicus Marine Service Product https://doi.org/10.48670/mds-00359

Mediterranean Sea Physics Reanalysis EU Copernicus Marine Service Product https://doi.org/10.48670/mds-00375

Mediterranean Sea, Bio-Geo-Chemical, L3, daily Satellite Observations (1997-ongoing) EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00299

Short summary

Anomalous eutrophication levels characterised the northern Adriatic Sea in 2024 spring and fall. We analysed the anomaly in marine chlorophyll and primary production by using satellite and models, in connection with multiple events of very intense river discharges, high temperatures and circulation structures. Our study proves the importance of coastal forecasting models to monitor ocean-land dynamics.