I have active projects and collaborations in several of the worlds oceans. Navigate to backgrounds and detailed explanations with the links below.
Nansen and Amundsen Basins Observational System
The NABOS Project is a multidisciplinary, multinational collaboration to study ocean and climate processes in the Nansen, Amundsen, and Makarov sectors of the Arctic Ocean. These areas are influenced by circulation of warm Atlantic seawater around the boundaries of the Arctic Ocean and by large amounts of freshwater and shelf-modified waters from the East Siberian and Laptev Seas. NABOS has been operating in this region since 2002 and is the longest established observing system in these sectors of the Arctic Ocean. Mooring data are available nearly continuously at a couple stations, and in recent years the number of moorings along the continental shelf break has increased allowing better analysis of the connectivity between ocean basins, between the shelf and the basins, and between the ocean surface and the deep ocean. Mooring data has been complemented by surveys roughly every two years, and hydrochemical data has been a major part of the observing system since 2013.
The Biogeochemistry and Tracer Lab at the International Arctic Research Center is committed to providing quality nutrient (nitrate, nitrite, phosphate, and silicate) data from NABOS cruises and is working to understand if and how nutrient dynamics have changed since 2013 and how to best apply nutrients as tracers of different water types in the Arctic.
Multidisciplinary drifting Observatory for the Study of Arctic Climate
MOSAiC is a cross-disciplinary study of the central Arctic Ocean. A one-of-a-kind field campaign was conducted from September 2019 to September 2020, documenting for the first time the annual dynamics of atmosphere, ocean, sea ice, ecosystem and biogeochemical processes. The study uses a Lagrangian-framework, drifting with the sea ice from the central Arctic, riding the Transpolar drift across the North Pole and into the Greenland Sea.
The Biogeochemistry and Tracer Lab at the International Arctic Research Center is studying the biogeochemical cycling of nutrients in sea ice in collaboration with sea ice experts, biogeochemistry teams, and ecologists. The MOSAiC campaign was logistically impacted by the COVID-19 pandemic, and the month of the melt was not able to be studied due to crew changes. In an effort to assess this critical period, our group investigated nutrient and trace metal dynamics in landfast sea ice during the 2021 spring melt.