Baltic Sea surface temperature analysis 2022: a study of marine heatwaves and overall high seasonal temperatures

Lindenthal, Anja; Hinrichs, Claudia; Jandt-Scheelke, Simon; Kruschke, Tim; Lagemaa, Priidik; van der Lee, Eefke M.; Maljutenko, Ilja; Morrison, Helen E.; Panteleit, Tabea R.; Raudsepp, Urmas

doi:https://doi.org/10.5194/sp-4-osr8-16-2024

Articles | Volume 4-osr8

https://doi.org/10.5194/sp-4-osr8-16-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Report:

8th edition of the Copernicus Ocean State Report (OSR8)

https://doi.org/10.5194/sp-4-osr8-16-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 4-osr8

30 Sep 2024

| OSR8 | Chapter 4.4

| 30 Sep 2024 | OSR8 | Chapter 4.4

Baltic Sea surface temperature analysis 2022: a study of marine heatwaves and overall high seasonal temperatures

Anja Lindenthal, Claudia Hinrichs, Simon Jandt-Scheelke, Tim Kruschke, Priidik Lagemaa, Eefke M. van der Lee, Ilja Maljutenko, Helen E. Morrison, Tabea R. Panteleit, and Urmas Raudsepp

Data sets

Global Ocean - In-Situ Near-Real-Time Observations EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00036

Baltic Sea - L3S Sea Surface Temperature Reprocessed EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00312

Baltic Sea Physics Reanalysis EU Copernicus Marine Service Product https://doi.org/10.48670/moi-00013

Baltic Sea - Eutrophication and Acidity aggregated datasets 1902/2017 v2018 SMHI https://doi.org/10.6092/595D233C-3F8C-4497-8BD2-52725CEFF96B

Meteorological observations, air temperature, station number 140480 (Umeå Flygplats) SMHI https://www.smhi.se/data/meteorologi/ladda-ner-meteorologiska-observationer/#param=airtemperatureInstant,stations=core,stationid=140480

Meteorological observations, wind, station number 140480 (Umeå Flygplats) SMHI https://www.smhi.se/data/meteorologi/ladda-ner-meteorologiska-observationer/#param=wind,stations=core,stationid=140480

Model code and software

marineHeatWaves v0.16 E. C. J. Oliver https://github.com/ecjoliver/marineHeatWaves

A MATLAB toolbox to detect and analyze marine heatwaves (MHWs) Zijie Zhao and Maxime Marin https://github.com/ZijieZhaoMMHW/m_mhw1.0

Short summary

In 2022, large parts of the Baltic Sea experienced the third-warmest to warmest summer and autumn temperatures since 1997 and several marine heatwaves (MHWs). Using remote sensing, reanalysis, and in situ data, this study characterizes regional differences in MHW properties in the Baltic Sea in 2022. Furthermore, it presents an analysis of long-term trends and the relationship between atmospheric warming and MHW occurrences, including their propagation into deeper layers.