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Research Thrusts

 

  1. Coastal Ocean Monitoring using Autonomous and Remote Sensing Instruments
  2. Ocean Acoustics
    • Canada Basin Acoustic Propagation Experiment
    • Coordinated Arctic Acoustic Thermometry Experiment
    • Cross-slope Acoustic Scattering & Transmission Experiment
  3. Expeditionary and Mine Warfare Applications in the Littoral Zone
  4. Observations and Predictions of Arctic Change
  5. Numerical Modeling

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Coordinated Arctic Acoustic Thermometry Experiment (CAATEx)


A joint U.S. - Norway acoustic propagation experiment across the Arctic ocean will be conducted summer 2019 to summer 2020.  First deployments will begin in August 2019, led by the Nansen Environmental and Remote Sensing Center (NERSC), let by Hanne Sagen aboard the K/V Svalbard, deploying 3 moorings in the Eurasian basin of the Arctic..  In September 2019, the USCGC HEALY will embark on a 47 day expedition to the Arctic, led by Scripps Institution of Oceanography (SIO) to deploy 3 moorings in the Canada basin to complete the trans-Arctic propagation array.   Naval Postgraduate School personel will be aboard both icebreakers to deploy oceanographic instrumentation and provide additional mooring deployment support and assistance.

Potential thesis oportunities:  Predictive modeling of the acosutic propagation arrival structures along the experiment path using existing oceanographic data;  Annual temperature variability ocross the Arctic ocean (Fall 2020, after recovery);  Contact Prof. John Colosi.

 

planned CAATEx mooring positions

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Canada Basin Acoustic Propagation Experiment (CANAPE)


Funded by the Office of Naval Research, the Naval Postgraduate School teamed with the Scripps Institution of Oceanography and the Woods Hole Oceanographic Institution in a field experiment abord the USCGC Healy to deploy deep-water moorings in the Beaufort Sea.

With changes in the Arctic Ocean structure and ice cover, the Canada Basin Acoustic Propagation Experiment (CANAPE) deep water comoponent was designed to study the low frequency propagation and ambient noise in the seasonal conditions of open water, marginal ice zone / partial coverage, and complete ice coverage conditions throughout the one year study period.

Canada Basin Mooring locations

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Passive Acoustic Monitoring of Marine Mammals

The NPS Marine Mammal Monitoring program recently deployed 3 moorings within the Monterey Bay Naitonal Marine Sanctuary.   Long term underwater recordings will provide baseline data on marine mammal vocalizations, allowing researchers to quantify marine mammal species present along the California coastline and help track their migration path/times.

Thesis topics availabel.  Contact John Joseph

Map showing monitoring locations near Monterey Bay

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NPS Autonomous Ocean Flux Bouy Program


bouyThe Autonomous Ocean Flux Buoy program is being conducted to monitor and better understand the delicate balance between the upper ocean, sea ice cover, and incoming solar radiation that sustains the perenial ice cover in the Arctic Ocean. A highly specialized observation system has been developed underNational Science Foundation, Arctic Observing Network sponsorship to meet this goal. Explore the links on the left to learn more about the program.

 

Link to data sets from the Flux Bouy Program