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Ecological physiology of marine photosynthesis, metabolic regulation of carbon and nutrient dynamics in marine ecosystems, radiative transfer and remote sensing of optically shallow waters, ecosystem productivity and numerical modeling.

Biogeochemistry;Aquatic chemistry;Geochemistry of marine sediments;Organic geochemistry;Chemical oceanography;Mathematical modeling of geochemical processes;

Processes affecting trace element speciation and distributions in natural waters and sedimentsAir-sea transport and exchange of gases and trace elementsPaleoceanographic tracersAnalytical methods for aquatic chemistryComputer modeling of biogeochemical processes

Organic Geochemistry and Biogeochemistry. The sources, transformation and fate of natural and anthropogenic organic compounds in aquatic environments and their linkages with climate. Natural product and organic contaminant chemistry.

Chemical Oceanography, Marine Biogeochemistry, Antarctic Science

Numerical modeling of marine geological and geophysical fluid flow processes. Marine geophysics and geodynamics of ocean ridges, hotspots, and large igneous provinces. Continental shelf geology and geophysics. Geoscience data visualization and education.

I investigate sediment transport and deposition across a variety of spatial and temporal scales. I use acoustic and optical sensors to measure the movement of water and sediment in coastal environments. These observations are then compared with data from sediment cores, where textural, radioisotopic, and geochemical signatures can fingerprint sediment sources and rates of sediment deposition and erosion. Ideally, I can connect a specific event (e.g., storm or flood) observed in the acoustic and optical sensors, with a corresponding deposit or erosive horizon observed in the sediment cores. By studying sediment dynamics in modern systems, I hope to better understand the behavior of past systems, the remnants of which may now be buried beneath more recent sediment, or exposed in eroding cliff faces. I am excited to work with students from a variety of backgrounds, including (but not limited to) geology, oceanography, and civil engineering.

Nora Noffke is a sedimentologist, who has fundamentally contributed to the scientific field of biofilms and microbial mats in clastic sedimentology. Her research is highly interdisciplinary combining sedimentology with microbiology, geochemistry, paleontology and mineralogy. Microbially induced sedimentary structures occur abundantly in modern aquatic environments, but can also be found in the fossil record. Examples in 3.48 billion year old rocks in the Pilbara, Australia, constitute some of the oldest biogenic structures in Earth history. Similar structures may be detected also in equivalent rocks on other terrestrial planets such as Mars. Of interest are also complex interactions between macroscopic organisms and biofilms and the structures such interaction leaves behind in sediments. Noffke has published more than a hundred scientific papers and edited 7 special issues and books. She has authored one textbook on her research field. Noffke serves as Chair of the Subcommission on Precambrian Stratigraphy of the International Stratigraphic Commission. She acts also as editor for the Treatise of Invertebrate Paleontology - Prokaryota. Together with John Stolz, Duquesne University, she has founded the Gordon Research Conference Geobiology.

Reconstructing millennial-scale climate change over the last Ice AgeTrace elements in foraminiferal calciteENSO dynamics over the past 60,000 yearsProductivity changes in the Eastern Equatorial Pacific since the last Ice Age

I am a coastal hydrogeologist interested in how groundwater flow impacts marine and aquatic environments. I use geochemical (radon, radium isotopes) and geophysical tracers (heat) to quantify groundwater-surface water interactions in tidal rivers, wetlands, estuaries and continental-shelf environments. I am broadly interested in improving our understanding of the various mechanisms that drive groundwater flow in the coastal zone, and how this impacts water quality and biogeochemical cycles. Past projects have focused on identifying sources of nitrogen contamination in coastal groundwater and its role in driving water quality impairments. Current projects are focused on the lateral export of “blue carbon”, or carbon “outwelling” from groundwater-surface water exchange, a major sink of DIC, DOC and TA in the coastal ocean.I am currently looking for new students! Research projects in my lab are interdisciplinary and we welcome students with backgrounds in geology, environmental science, oceanography, environmental engineering, etc. Please reach out to discuss research opportunities!

Lizzie’s research interests include developing long term records of coastal climate extremes (e.g., tropical cyclones, nor’easters) using sediment cores and global climate models (GCMs) and exploring the links between climate change (e.g., sea level rise, drought, rainfall) and coastal processes and ecosystems.

Analytical and numerical modelling of physical and biological processes in oceanic, coastal and estuarine environments.

Analysis and modeling of biological and physical interactions in marine ecosystems anddescriptive physical oceanography.

Physical oceanography, climate change and sea level rise, numerical modeling of ocean circulation, physical-biological interactions

Sustainability of the anthropsphere, global and climate change mitigation and adaptation;Sea level fluctuations and impacts on humans and ecosystems;Monitoring, analyzing variations, and modeling physical parameters of the Earth system from global to local spatial scales andtemporal scales from minutes to millenia, including, but not limited to Earth rotation, displacements of the Earth surface, fluxes inthe global water cycle, sea level, atmospheric water content, air pressure, temperature, wind, etc.;General approach to studies of the Earth system;Rheology of the Earth mantle;Geophysical phenomena and geodetic observations related to global geodetic reference frames;Earth rotation studies and integration of the solid Earth into Earth system models;Deformations of the Earth due to exogenic forcing, particularly postglacial rebound and atmospheric, oceanic, hydrological andcryospheric loading;Inproving the global geodetic reference frame as a major utility for all Earth observation;Application of geodetic techniques to geohazards and early warning.