Extremely High Sea Surface Temperatures in 2023

• DOI: 10.22541/essoar.169841605.55109338/v1
• Publication Date: 2023-10-27T14:14:24Z
• Authors: Boyin Huang; Xungang Yin; James Carton; Ligang Chen; Garrett Graham; Patrick Hogan; Thomas Smith; Huai-Min Zhang
• Keywords: 13. Climate action; 14. Life underwater

NOAA's Daily Optimum Interpolation Sea Surface Temperature (DOISST) indicates that globally averaged sea surface temperature (SST) broke record in March 2023 and set new highs April, July, August 2023.This has raised intense media interest public concern about causes connections to climate change.Our analysis the high SSTs qualified as marine heatwaves (MHWs) even super-MHWs defined this study, are attributed three factors: (i) a linear trend, (ii) shift warm phase of multi-decadal Pacific-Atlantic-Arctic Oscillation(PAO) pattern which is identified (iii) transition from triple-dip succession La Niña events El Niño event.