|2014 ‐ Present||Assistant Professor, Skidmore College ‐ Department of Geosciences|
Processes influencing rapid transformation and export of particulate matter in open ocean, coastal, and near-bottom environments, validation and application of optical sensors for particulate matter, ocean color remote sensing of turbid, coastal waters, and photochemical reactions of suspended particulate matter.
- Oceans and Global Change
- The Coastal Ocean
- Remote Sensing of the Earth and Environment
- Introduction to Oceanography
|2011||Ph.D., University of Maine ‐ School of Marine Sciences|
|2001||B.A., Carleton College ‐ Department of Chemistry|
Research Works (8)
Carbon Flux from Bio-optical Profiling Floats: Calibrating Transmissometers for Use as Optical Sediment Traps Geosciences Faculty Scholarship (2016)
Our mechanistic understanding of the processes controlling the ocean's biological pump is limited, in part, by our lack of observational data at appropriate timescales. The “optical sediment trap” (OST) technique utilizes a transmissometer on a ...
Decoupling of Net Community Production and Export Production at Submesoscale Fronts in the Sargasso Sea Geosciences Faculty Scholarship (2015)
Determinations of the net community production (NCP) in the upper ocean and the particle export production (EP) should balance over long time and large spatial scales. However, recent modeling studies suggest that a horizontal decoupling ...
Observations of Carbon Export by Small Sinking Particles in the Upper Mesopelagic Geosciences Faculty Scholarship (2015)
Carbon and nutrients are transported out of the surface ocean and sequestered at depth by sinking particles. Sinking particle sizes span many orders of magnitude and the relative influence of small particles on carbon export ...
Particle Dynamics in the Rising Plume at Piccard Hydrothermal Field, Mid-Cayman Rise Geosciences Faculty Scholarship (2015)
Processes active in rising hydrothermal plumes, such as precipitation, particle aggregation, and biological growth, affect particle size distributions and can exert important influences on the biogeochemical impact of submarine venting of iron to the oceans ...
Autonomous, High-resolution Observations of Particle Flux in the Oligotrophic Ocean Geosciences Faculty Scholarship (2013)
Observational gaps limit our understanding of particle flux attenuation through the upper mesopelagic because available measurements (sediment traps and radiochemical tracers) have limited temporal resolution, are labor-intensive, and require ship support. Here, we conceptually evaluate ...
Rate and Apparent Quantum Yield of Photodissolution Geosciences Faculty Scholarship (2012)
We quantified rates of photochemical dissolution (photodissolution) of organic carbon in coastal Louisiana suspended sediments, conducting experiments under well-defined conditions of irradiance and temperature. Optical properties of the suspended sediments were characterized and used in ...
Role of Iron and Organic Carbon in Mass-specific Light Absorption by Particulate Matter from Louisiana Coastal Waters Geosciences Faculty Scholarship (2012)
We investigated the influences of organic content and mineralogical composition on light absorption by mostly mineral suspended particles in aquatic and coastal marine systems. Mass-specific absorption spectra of suspended particles and surface sediments from coastal ...
Photodissolution and Other Photochemical Changes upon Irradiation of Algal Detritus Geosciences Faculty Scholarship (2009)
Several recent lines of literature point toward strong photoreactivity of phytoplanktonic detritus. We examined effects of irradiation of algal membrane fragments in various stages of decay, with emphasis on transfer of materials from solid to ...