Foraminiferal isotopic evidence of abrupt mid-20th century onset of hydrographic instability in Nordic Seas inflow waters
Hans Petter Sejrup, Scott J. Lehman, Berit O. Hjelstuen, Lukas W. M. Becker, Rebekka H. Runarsdottir, Ulysses S. Ninnemann, Monica Ionita · 2025
Read Foraminiferal isotopic evidence of abrupt mid-20th century onset of hydrographic instability in Nordic Seas inflow waters by Hans Petter Sejrup, Scott J. Lehman, Berit O. Hjelstuen, Lukas W. M. Becker, Rebekka H. Runarsdottir, Ulysses S. Ninnemann, Monica Ionita (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12820267.txt.
Description
Hans Petter Sejrup leads a team of seven authors in 2025 in reading two and a half centuries of ocean history from the shells of tiny sea creatures. Warm Atlantic water flowing into the Nordic Seas carries heat toward the Arctic and forms a key limb of the great Atlantic overturning circulation.
From oxygen isotopes in foraminifera shells, the team built a year-by-year record running from 1750 to 1992. The record tracks the temperature of the surface inflow waters. It reveals a sharp rise in temperature instability starting in the mid twentieth century, a shift not recognized before. Such records help test whether the modern ocean is behaving unusually.
Catalog record
| CREATOR | Hans Petter Sejrup, Scott J. Lehman, Berit O. Hjelstuen, Lukas W. M. Becker, Rebekka H. Runarsdottir, Ulysses S. Ninnemann, Monica Ionita |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 39 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |