Sevi Modestou

Sevi Modestou is a Researcher at Northumbria University specializing in isotope geochemistry and paleoceanography. She manages the NICEST Lab, focusing on reconstructing Earth's past climate through clumped isotopes, stable isotopes, and elemental analysis of carbonate archives, speleothems, marine sediments, and water samples.

• Research Themes: Isotope geochemistry, paleoceanography, paleoclimatology, biogenic silica archives, tectonic-climate interactions
• Methodologies: Clumped isotope thermometry (Δ47), stable isotope analysis (δ13C, δ18O), X-ray fluorescence (XRF), paleomagnetic stratigraphy

Her key publications include contributions to the International Ocean Discovery Program expeditions and high-impact journals like Nature Communications. Recent work examines Iceland-Scotland overflow water dynamics and mantle convection's climatic implications using multi-isotope systems.

Collaborative Projects:

• NERC-funded research (2022-2024) on seawater chemistry reconstructions
• EGU General Assembly 2025 presentation on Eurasian continental climate
• Multi-institutional IODP studies across North Atlantic sites

The NICEST Lab employs advanced analytical techniques to characterize modern environmental conditions and reconstruct paleoclimate data spanning Holocene to Precambrian eras.