Abstract
Water temperature is a vital parameter impactingthe growth and survival of aquatic life.Using satellite-derived infrared data, this studyanalysed the trend of sea surface temperature (SST)from 2008 to 2022of the Adriatic coastal watersofItalian regions. The "Mediterranean Sea High Resolution and Ultra High Resolution Sea Surface Temperature Analysis" product collected from theCopernicus Marine Serviceof European Copernicus programme was used, as a good compromise among spatial accuracy, temporal frequency and coverage. SST were derived in 176 locations, placed in the Adriatic Sea from the southern limit of the lagoon of Venice (Veneto) to Santa Maria di Leuca (LE), at a distance from the coast between 500 m and 5000 m (0.3 - 2.7 nautical miles). Time series analysis was applied to average value of daily SST calculated from the selected spatial locationsto identify the additive model components: trend, seasonality and random effects. The trend component was isolated and assessed using a linear regression modelto determine its significance and magnitude.A0.010 °C/year increase in SST was observed. Additionally, marine heatwaves and cold spells were consistently registered throughout the entire observation period, with a north-south gradient in intensity.
Published Version
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