Physical Oceanography Analysis of Puerto Morelos Field Work

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Presentation transcript:

Physical Oceanography Analysis of Puerto Morelos Field Work Seasonal and fortnightly variations in submarine groundwater discharge

2. Seasonal and fortnightly variations in submarine groundwater discharge Power spectra of water surface elevation and vertical velocities Turbulent Kinetic Energy analysis to obtain dissipation rates Seasonal comparison of wet vs. dry periods

Motivation! Why do we care?? SGD impacts our groundwater supplies! (cue descriptive graphic) Some culprits: Sea Level Rise Over pumping Pollution Source: Dr. Valle-Levinson. Tidal variability of salinity and velocity fields related to intense point-source submarine groundwater discharges into the coastal ocean.

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Pressure (WSE), TKE, Vertical Velocity, Temperature

Pargos Pressure and Vertical Velocity (March) Water Surface PS Vertical Velocity PS

Dissipation Calculation from TKE

Variability of dissipation with respect to frequency

Boca Chica September 4-18, 2014 Nortek vector sampling at 64 Hz 10 min burst, every 30 min at Gorgos Nortek vector sampling at 8 Hz continuously at Pargos Pargos Gorgos Boca Chica

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Bernoulli dynamics: Cenote WSE varitation DO vs Salt: physical vs chemical Oxygen and salt mass balances compared with discharge values Cenote variation: hydraulic gradient, Bernoulli Confirm pargos data bad-bacteria covering it? Gorgos pulses, mass balance