Arctic ice station visitors!
Coring Eastern Arctic sea ice
ARTofMELT 2023
The ice drilling clan
Our ARTofMELT team
Fika with makeshift benches and wind barriers
Sikuliaq 2021-08-S Science team
Sikuliaq 202108-S Science team - take 2
Dutch Harbor. Our pre-cruise arctic meeting place.
Arctic 2021, Barrett, Shipley and Vlahos on annual ice in the Chukchi Sea
AMIZA Broader Impacts - Senior Illustration Projects

















About Us
Our group uses thermodynamic principles to assess the fate and transport of natural and anthropogenic compounds in the environment including:
- alkalinity and acidification in coastal systems
- air-sea gas transfer (bubbles & sea spray)
- carbon and nitrogen geochemistry
- emerging contaminants in coastal and far-shore environments
- Harmful Algal Blooms (HABs) and biogeochemical links
- chemical samplers and sensors (sulfate and contaminant samplers)
Latest News …
New Publication: Neglecting organic alkalinity introduces greater error than assuming boron to salinity ratios in Arctic sea ice brine carbonate system calculations.
Rush, S., Lee, CH., Lee, K. et al. Neglecting organic alkalinity introduces greater error than assuming boron to salinity ratios in Arctic sea ice brine carbonate system calculations. Sci Rep 16, 9393 (2026). https://doi.org/10.1038/s41598-026-39719-6
New Publication: Trends in the physical and chemical state of the ocean
Vlahos, P, Dupont, S, Evelpidou, N, González-Quirós, R, Knezevic, J, Smolyanitsky, V, Thomas, D N & Vargas-Yáñez, M 2026, Trends in the physical and chemical state of the ocean. in The Third World Ocean Assessment: WOA III. United Nations. < https://woa.un. org/third-world-ocean-assessment/changes-second-world-ocean-assessment/chapter-3trends-physical-and-chemical >
New Publication: Sea spray driven CO2 efflux: modeling the effect of sea spray evaporation on carbonate chemistry and air-sea gas exchange
Lucy Hendrickson, Leonel Romero & Penny Vlahos
npj Climate and Atmospheric Science volume 9, Article number: 31 (2026)
Erich Nitchke awarded Certificate of Excellence for his talk at the Northeast Biologist Conference

New Publication: Spring awakening? Seasonal controls on halomethoxybenzenes in arctic waters
Freeman et al., (2025) Science of the Total Environment. https://doi.org/10.1016/j.scitotenv.2025.180857