Our lab develops chemical sensors for seawater and other natural water applications. We focus primarily on autonomous instrumentation - devices that run on internal power and computer control for extended periods without a human operator.
Our research interests are centered on the marine inorganic carbon cycle and the related biogeochemical processes controlling it. We are currently developing instruments to measure pH, total alkalinity, and dissolved inorganic carbon in the ocean.
In addition to development of novel sensors, we are involved with construction of integrated sensor packages, built with existing, commercially available technologies. As developers and users we have become very interested in best practices associated with sensor calibration and deployment.
The driving force behind this work is a need to better understand and characterize the spatiotemporal state of the marine environment. Most of what we know about ocean chemistry comes from snapshots obtained by ships which are unable to directly observe most rate processes on the time scales relevant to their occurrence. Autonomous sensors now play an increasing role in ocean science by providing continuous, high-resolution time series of key biogeochemical properties from a variety of platforms. While sensors will not soon replace ship-based oceanography, it is our goal to develop and use sensors to fill in the gaps between cruises.