Curriculum Vitae
Turning Smartwatches into Smart Ocean Sensors
Smartwatches contain sensors already used by scientists to study the ocean, like a GPS, barometer, and thermometer. This project aims to measure the physical properties of the coastal ocean by turning smartwatches into smart sensors. We will create an app to measure, view and share data, then test the sensors against commercially available sensors to determine if they can be used for research and monitoring the coastal ocean. https://experiment.com/projects/can-we-use-a-smartwatch-for-coastal-monitoring-and-research
Software Design
Shaped strategic planning and technology road mapping with product management that resulted in a new software and SaaS initiative. Contributed to development processes by creating UX best practices guidelines and mapping workflows for product definition. Drove action on VOC for machine readable calibration and metadata by defining format and creating .json files to be used by the customer.
Sensor Development and Manufacturing
A selection of oceanographic temperature and conductivity sensors
The ocean is brutal on sensors. High pressures, corrosive saltwater, rough seas and the accuracy requirements for climate studies makes designing oceanographic sensors a challenge. At Sea-Bird Scientific I worked on the design, manufacturing and refinement of the world’s most accurate sensors. These sensors were deployed from the surface to the bottom of the Marianas Trench, and I was part of the team that ensured their quality.
Arctic internal waves
Sea ice over the Chukchi Sea.
Arctic internal waves are relatively weak due to damping and insulation from atmospheric forcing by sea ice. In response to recent ice loss, internal wave generation in the Arctic may increase. My research aims to understand how changes in the extent and strength of the ice pack affects the internal wave field, and using this information attempt to predict where the greatest change will occur.
Biophysical interactions in the Chukchi Sea
Copepod with egg clutch.
The shallow Chukchi Sea is an incredibly dynamic system, with large changes in water mass composition and stratification that are caused by the annual ice growth and melt. It is also a highly productive ecosystem, fueled by nutrient rich Pacific water that flows northward into the Arctic. I am exploring how physical processes, such as water mass variability and internal wave induced mixing, control phytoplankton abundance and diversity in this marginal Arctic Sea.
Western boundary waves
Not much is known about the long-term variability of tidal and wind generated internal waves due to the lack of long-term data. Are there distinct seasonal, inter-annual and even fortnightly cycles? Or are they unpredictable due to other environmental changes? Along with my collaborator Zoltan Szuts (UW), we are trying to answer some of these questions, using over 6 years of data from the RAPID array deployed at 26 N in the Atlantic Ocean.
Sea ice deformation
Tracks of over 700 drifters deployed in the Arctic from 2000-2010.
In the last 10 years, there has been a drastic decrease in Arctic sea ice thickness and extent. By utilizing satellite-tracked drifter data from the International Arctic Buoy Project to calculate ice divergence and shear-strain rates, Jennifer Hutchings (OSU) and I examining the how the strength of Arctic ice pack changing. This work will also result in a new high-resolution data set of buoy trajectories that will be made available to the public.
Acrobat towed instrument platform
Sea Science's Acrobat Towed Instrument Platform.
Sea Science's Acrobat is a towed instrument platform which is able to make high-resolution observations of the upper ocean structure. While working at the University of Alaska, Fairbanks I designed and created an advanced data acquisition and processing system for the platform. This included a real-time data display, which is the most advanced created for this platform to date.
Internal waves at ocean boundaries
Bathymetric relief of the Oregon Continental Slope.
The bulk of tidal energy energy converted to internal waves propagates away from their generation region. Eventually these internal tides shoal onto abrupt topography such as continental slopes. Using data from a moored array placed across the Oregon continental slope, we showed that once they shoaled, the internal waves broke on the continental slope creating huge, turbulent upslope bores, similar to wave breaking at a beach.
Standing internal waves
The currents and vertical displacements caused by the passage of a single internal wave is easily described by a known set of equations. However, a random location in the ocean is rarely comprised of just a single wave. Instead it is often populated by a multi-directional wavefield, creating complex standing wave patterns which can be easily misinterpreted. I use internal wave dispersion and polarization relations to derive a set of characteristic equations for superposed waves, so that uni-directional wavefields can be distinguished from multi-directional ones and the direction of internal wave propagation can be determined.