Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Helena Filipsson, foto Erik Thor

Helena Filipsson


Helena Filipsson, foto Erik Thor

Seasonal climate variations in the Baltic Sea during the Last Interglacial based on foraminiferal geochemistry


  • S. Ni
  • N. B. Quintana Krupinski
  • J. Chonewicz
  • J. Groeneveld
  • K. L. Knudsen
  • M. S. Seidenkrantz
  • H. L. Filipsson

Summary, in English

Climate during the Last Interglacial period (LIG, Marine Isotope Stage 5e) was on average warmer than the present, with a higher global sea level but also more unstable conditions. Today, the Baltic Sea interacts strongly with conditions in the North Atlantic region, and this interaction was likely even stronger during the LIG. We here present a reconstruction of seawater conditions during the LIG based on benthic foraminiferal geochemistry (stable isotopes and trace elements) and compare these records with modern marine monitoring data to evaluate seasonal hydrographic conditions in the western and southern Baltic Sea during the first half of the LIG (130–123 ka BP). Our reconstructions reflect the evolution of seasonal temperature and salinity, rather than annual mean conditions. The spring LIG bottom water temperatures in the Skagerrak and Kattegat were ∼2–3 °C higher compared to the modern spring bottom water temperatures. During the LIG, there was an increase in seasonality in bottom water temperature (progressively warmer summers and cooler springs) in the southern Baltic Sea, which can be linked to seasonal insolation changes. Moreover, our data suggest a decreased gradient of bottom water salinity along a transect through the Skagerrak-Kattegat-Danish Straits-southern Baltic Sea, supporting previous investigations inferring a stronger ocean-water influx into the Baltic Sea during the LIG than at present.


  • MERGE: ModElling the Regional and Global Earth system
  • Kvartärgeologi






Quaternary Science Reviews




Artikel i tidskrift




  • Geology
  • Climate Research


  • Benthic foraminifera
  • Hydrography
  • Seasonality
  • The Baltic Sea
  • The Last Interglacial
  • The Skagerrak




  • MERGE SP: Proxy-based reconstructions and model simulations of seasonal climate variations during the Last Interglacial in the Baltic Sea
  • Tracing marine hypoxic conditions during warm periods using a microanalytical approach


  • ISSN: 0277-3791