Satellite-Observed Spatial and Temporal Sea Surface Temperature Trends of the Baltic Sea between 1982 and 2021

The Baltic Sea is one of the fastest-warming marginal seas globally, and its temperature rise has adversely affected physical biochemical characteristics. In this study, forty years (1982–2021) sea surface (SST) data from advanced very high resolution radiometer (AVHRR) were used to investigate spatial temporal SST variability Sea. To end, annual maximum minimum stacked series, i.e., time series layers satellite data, generated using high-quality observations acquired at night fed an automatic algorithm detect linear non-linear trend patterns. pattern was dominant type in both while more pixels with patterns detected when SST. However, showed increases across Annual increased by average 0.062 ± 0.041 °C per year between 1982 2021, 0.035 0.017 over same period. Averaging trends produces a 0.048 0.022 last four decades.