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Bay Hydrodynamics Study: Temperature, Velocity, and Particle Size Measurements

This project aims to provide crucial temperature and current velocity data for hydrodynamic modeling and quantify resuspension during spring by capturing size data of suspended particles. The methods include deploying various sensors and profilers at strategic locations in the bay throughout the year. The collected data from deployments in winter 2008-2010 are being quality controlled and archived for analysis. Next steps involve finalizing data quality control, retrieving missing moorings, examining hypoxia, and comprehensive data analysis.

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Bay Hydrodynamics Study: Temperature, Velocity, and Particle Size Measurements

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  1. Time series measurements Nathan Hawley

  2. Objectives: Provide temperature and current velocity data for hydrodynamic model Quantify resuspension during the spring Provide size data of suspended particles

  3. Methods • 1. Deploy acoustic Doppler velocity profilers and strings of temperature sensors at selected locations in the outer bay throughout the year, and in the inner bay between April and October • 2. Deploy tripods with transmissometers and pressure sensors in the inner bay during the spring • 3. Make observations with a LISST sensor to measure particle size of suspended sediment • 4. CTD casts

  4. Deployments Winter 2008-2009: currents and temps at stations 1-5, waves at station 2 2009: currents and temps at all 6 stations, waves at stations 2,4,5, and 6, attenuation at stations 4 and 6, LISST data at station 4 Winter 2009-2010: currents and temps at stations 1-3, and 5, waves at 2 and 5 2010: currents and temps at all stations, waves at 2 and 4-6, attenuations at 4 and 6

  5. Status of data 2008-2009 and 2009 temperatures have been quality controlled and archived 2008-2009 and 2009 currents have been provided to Dima but not quality controlled All other data has been downloaded but not quality controlled

  6. Yet to do: Do quality control and archive the data Attempt to retrieve the missing moorings Look for hypoxia? Analyze the data???

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