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Water flows in the natural environment

Water flows in the natural environment. Stephen M. Henderson. Waves. Currents. Sediment Transport. Motivation: $, safety, habitat, pollution etc. Field experiments. Field experiments. Field Instrumentation: velocity/temperature. Field Instrumentation: velocity/temperature.

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Water flows in the natural environment

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  1. Water flows in the natural environment Stephen M. Henderson

  2. Waves Currents Sediment Transport

  3. Motivation: $, safety, habitat, pollution etc

  4. Field experiments

  5. Field experiments

  6. Field Instrumentation:velocity/temperature

  7. Field Instrumentation:velocity/temperature Temperature/Salinity/Depth: 7 instruments, 1Hz sampling, 10-3C accuracy 25 instruments, 4 min sampling, 10-1C accuracy Temperature Velocity: 9 instruments, 8Hz sampling, 10-3m/s accuracy, 2m range, 1.5cm bins, 5cm/s max velocity or 1 min sampling, 5cm/s accuracy, 6m range, 0.3m bins, any velocity or 10 min sampling, 1cm/s accuracy, 20m range, 0.7m bins, any velocity or 2 instruments 64Hz sampling, 10-3m/s accuracy, single measurement in cm3 bin + eddy correlation heat flux East North Vertical

  8. Field Instrumentation:other • 2 weather stations: • Air temperature, relative humidity, velocity, net radiation • GPSs

  9. Pen & paper theory • Water is not created of destroyed, and F=Ma… • Leads to pdes for water motion, sometimes can be solved with standard applied math techniques.

  10. Computer simulations

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