Earth Systems Science

Timothy DeVries

I work with global ocean models to study the cycling of carbon and nutrients in the ocean. The primary tool I use is a global ocean circulation model constrained by tracer observations.

Syee Weldeab

My research works focus on the reconstruction and understanding of (1) past monsoon rainfall variability, (2) temperature, salinity, and circulation of the oceans, (3) linkages between tropical oceans and high latitude climate, and their interaction with and effect on the monsoon systems. I use marine sediment cores that cover time span ranging from orbital scale to anthropogenic, and apply stable and radiogenic isotopes and trace element composition to decipher past climate evolution.

Katerina Michaelides

My research focuses on surface water flow generation and its interaction with the land surface at a variety of time and space scales. My work is both theoretical and applied and involves field, experimental, analytical and modelling components. The various strands of my research can be summarised as follows:

Matthew Jackson

Professor Jackson uses the isotopic and chemical composition of lavas erupted at plume-fed hotspot volcanoes to gain insight into the make-up of the Earth’s deep interior. In particular, he is interested in understanding the origins (recycling of subducted material, metasomatism, etc) and length scales (hemispheric to micron-scale) of heterogeneities in the mantle. He employs innovative in situ techniques to get at the composition of lavas, phenocrysts and the melt inclusions they host.

Thiago Silva

I study the ecosystem processes on floodplains of the Amazon basin. My approach combines field data with multi-temporal satellite data and is making an important contribution to understanding of carbon dynamics in tropical wetlands. 

Jay Means

Over the course of his career, Jay Means has been involved in developing trace analytical methodology and its application to the analysis of environmental media including water, sediments, biological tissues, colloidal materials and air. He has published more than one hundred papers in the areas of trace analytical chemistry, environmental chemistry, and environmental toxicology of hydrophobic organic chemicals in aquatic systems ranging from the Great Lakes and major U.S. river systems to estuaries in the Chesapeake Bay, San Francisco Bay, the Gulf of Mexico, and U.S.

Measures Ocean Color Project

Satellite ocean color data products are all too frequently relegated to a single, unique product, the chlorophyll concentration. However, the ocean color signal (the normalized water-leaving radiance spectrum, LwN(lambda)) contains information about other water components or processes such as the concentrations and type of suspended particulate and dissolved materials, the composition of the phytoplankton community and the productivity of the water column.

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