Alexander E. Hay

Professor
Killam Professor in Oceanography 2013-2018

Email: alex.hay@dal.ca

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Recent Submissions

  • Physical forcing of space-time variation in the copepod prey-field of right whales in Roseway Basin at diel and tidal scales 

    Davies, K. T., D. J. Schillinger, A. E. Hay, and C. T. Taggart. "Physical forcing of space-time variation in the copepod prey-field of right whales in Roseway Basin at diel and tidal scales." Canadian Meteorological and Oceanographic Society, McDonald Building 150 Louis Pasteur, Ste 112 Ottawa, ON, K1N 6N5 Canada. [np]. CMOS Congress 2009 - Sea and Sky Come to Life, Halifax, Nova Scotia (Canada), 31 May - 4 June 2009.
    Defining the critical feeding habitat for endangered species is the goal of many marine science initiatives. In the pelagic zone, habitat boundaries are difficult to define statically in space because the prey-field is ...
  • Automatic tuning of a velocity estimator for pulse-to-pulse coherent Doppler sonar 

    Dillon, J., L. Zedel, and A. E. Hay. 2011. "Automatic tuning of a velocity estimator for pulse-to-pulse coherent Doppler sonar." 2011 IEEE/OES 10th Current, Waves and Turbulence Measurements (CWTM): 230-6.
    Pulse-to-pulse coherent Doppler sonar is capable of measuring simultaneous profiles of veloctiy and sediment concentration in turbulent suspensions. However, the presence of measurement noise introduces biases when turbulence ...
  • Flow in a tidal channel: Limiting larger-scale predictability? 

    Hay, A. E., J. C. Mullarney, and A. J. Bowen. 2006. "Flow in a tidal channel: Limiting larger-scale predictability?." EOS, Transactions, American Geophysical Union.
    Lunenburg Bay is a coastal embayment on the South Eastern Coast of Nova Scotia, Canada. It is characterized by complex bathymetry. In particular, the Bay is linked to two shallow coves through a relatively narrow channel ...
  • Space-time variability of sediment suspension in the nearshore zone 

    Hay, A. E., and A. J. Bowen. 1994. "Space-time variability of sediment suspension in the nearshore zone." Coastal dynamics '94; international conference on The role of the large scale experiments in coastal research.
    No abstract available.
  • Remote acoustic observations from a real-time observing system of the response of a shallow coastal embayment to hurricane forcing 

    Schillinger, D. J., and A. E. Hay. 2005. "Remote acoustic observations from a real-time observing system of the response of a shallow coastal embayment to hurricane forcing." Journal of the Acoustical Society of America 117(4): 2472.
    Results are presented from the acoustic remote sensing component of Dalhousie University's interdisciplinary Coastal Ocean Observatory in Lunenburg Bay, Nova Scotia, operational since June 2002 (www.cmep.ca/bay). Remote ...
  • Studies of the Internal Tide in the Lower Bay of Fundy 

    Colbo, K., D. Greenberg, and A. Hay. "Studies of the Internal Tide in the Lower Bay of Fundy." Canadian Meteorological and Oceanographic Society, McDonald Building 150 Louis Pasteur, Ste 112 Ottawa, ON, K1N 6N5 Canada. [np]. CMOS Congress 2007 - Air, Ocean, Earth and Ice on the Rock, St. Johns, Newfoundland and Labrador, May 28 - June 1, 2007.
    Observations from the lower Bay of Fundy in 2002 show the presence of energetic high-frequency internal wave packets that are phase-locked to the tidal cycle. An analysis of the observations provides the direction of ...
  • Long Wavelength Ripples in the Nearshore 

    Alcinov, T., and A. E. Hay. 2007. "Long Wavelength Ripples in the Nearshore." Proceedings of the American Geophysical Union 2008 Fall Meeting.
    Sediment bedforms are ubiquitous in the nearshore environment, and their characteristics and evolution have a direct effect on the hydrodynamics and the rate of sediment transport. The focus of this study is long wavelength ...
  • Waves and Flows Over a Bedrock Shoal 

    Mulligan, R. P., A. J. Bowen, and A. E. Hay. 2006. "Waves and Flows Over a Bedrock Shoal." EOS, Transactions, American Geophysical Union.
    Wave forcing and response over a rough rocky shoal are investigated through analysis of field data and numerical simulation. The field site, Lunenburg Bay, is a coastal embayment on the southern shore of Nova Scotia ...
  • Time and space scales of bedform evolution in sandy nearshore and inner shelf environments 

    Hay, A. E.. 2003. "Time and space scales of bedform evolution in sandy nearshore and inner shelf environments." Journal of the Acoustical Society of America 113(4): 2299.
    Recent experiments in wave-forced nearshore and inner shelf environments have demonstrated through acoustic and optical imaging techniques a remarkable range of bedform patterns in mobile sandy sediments at sub-10 m ...
  • OBSERVATIONS AND MODELLING OF THE VELOCITY STRUCTURE OF A TIDAL JET 

    Mullarney, J. C., A. E. Hay, and A. J. Bowen. 2008. "OBSERVATIONS AND MODELLING OF THE VELOCITY STRUCTURE OF A TIDAL JET." 2008 Ocean Sciences Meeting: From the Watershed to the Global Ocean, Orlando, FL (USA), 2-7 Mar 2008.
    Lunenburg Bay, on the south eastern coast of Nova Scotia, is the site of an interdisciplinary coastal observatory. During the ebb phase of the tide a strong jet exits two coves along a narrow channel and enters the main ...
  • WAVE-DRIVEN CIRCULATION AND FLUSHING OF A COASTAL BAY 

    Mulligan, R. P., A. J. Bowen, and A. E. Hay. 2008. "WAVE-DRIVEN CIRCULATION AND FLUSHING OF A COASTAL BAY." 2008 Ocean Sciences Meeting: From the Watershed to the Global Ocean, Orlando, FL (USA), 2-7 Mar 2008.
    A coupled numerical model is used to simulate the waves andcurrents in a coastal bay during the landfall of a hurricane withoffshore significant wave heights of up to 9.1 m. Extensive wavebreaking along the shoreline and ...
  • A WORM based data logger for ocean environment use 

    McLean, S. D., D. G. Hazen, A. E. Hay, and A. J. Bowen. 1989. "A WORM based data logger for ocean environment use." OCEANS '89 OCEANS '89: 1642-1645.
    A reliable, high capacity in situ data logger system is required to store the large volume of data produced by new high speed data acquisition systems. The system will have to function at low temperatures, use minimal ...
  • Real-time forecasting of wave conditions in a coastal bay 

    Mulligan, R., A. Hay, and T. Bowen. "Real-time forecasting of wave conditions in a coastal bay." Canadian Meteorological and Oceanographic Society, McDonald Building 150 Louis Pasteur, Ste 112 Ottawa, ON, K1N 6N5 Canada. [np]. CMOS Congress 2007 - Air, Ocean, Earth and Ice on the Rock, St. Johns, Newfoundland and Labrador, May 28 - June 1, 2007.
    Numerical simulations of wave conditions in a coastal bay using the nearshore wave model SWAN are presented. The field site is Lunenburg Bay, a coastal embayment on the southern shore of Nova Scotia approximately 8 km long ...
  • On Turbulence Intensity Statistics and Bottom Friction in the Outer Surf Zone Under (Mainly) Flat Bed Conditions 

    Newgard, J. P., and A. E. Hay. 2006. "On Turbulence Intensity Statistics and Bottom Friction in the Outer Surf Zone Under (Mainly) Flat Bed Conditions." EOS, Transactions, American Geophysical Union.
    The statistical distribution of nearbed turbulence in the nearshore wave bottom boundary layer, and the variation of the wave friction factor with wave energy, are investigated for the flat-bed and sheet-flow range of the ...
  • Resonant Modulation of a Tidal Jet 

    Mullarney, J., A. Hay, and T. Bowen. "Resonant Modulation of a Tidal Jet." Canadian Meteorological and Oceanographic Society, McDonald Building 150 Louis Pasteur, Ste 112 Ottawa, ON, K1N 6N5 Canada. [np]. CMOS Congress 2007 - Air, Ocean, Earth and Ice on the Rock, St. Johns, Newfoundland and Labrador, May 28 - June 1, 2007.
    Lunenburg Bay, on the south eastern coast of Nova Scotia, is the site of an interdisciplinary coastal observatory with permanent moorings recording hydrodynamic, atmospheric and biological data. During the ebb phase of the ...
  • Benthic Dynamics in Barkley Canyon: Preliminary Results Using the NEPTUNE Canada Cabled Undersea Observatory 

    Schillinger, D. J., P. Archambault, A. E. Hay, K. Juniper, et al. 2010. "Benthic Dynamics in Barkley Canyon: Preliminary Results Using the NEPTUNE Canada Cabled Undersea Observatory." Proceedings from the 2010 AGU Ocean Sciences Meeting.
    Barkley Canyon is a deep (~1200 m) canyon at the continental shelf break located off the southern coast of Vancouver Island. Four instrumentation platforms were deployed as part of the NEPTUNE Canada project at sites in ...
  • Turbulence measurements in a jet: Comparing the Vectrino and VectrinoII 

    Zedel, L., and A. Hay. 2011. "Turbulence measurements in a jet: Comparing the Vectrino and VectrinoII." 2011 IEEE/OES 10th Current, Waves and Turbulence Measurements (CWTM): 173-8.
    Results are reported from an experiment carried out with the newly developed Nortek VectrinoII and the standard Nortek Vectrino in a turbulent axisymmetric jet at a Reynolds number of 5000. The mechanical and acoustic ...
  • Field measurements of the vertical structure of suspended sediment 

    van Hardenberg, B., A. E. Hay, Y. Sheng, and Anthony J. Bowen. 1991. "Field measurements of the vertical structure of suspended sediment." Specialty conference on Quantitative approaches to coastal sediment processes.
    No abstract available.
  • Geoacoustic Inversion of surficial gassy sediment 

    Matthews, M-NR, A. E. Hay, F. Desharnais, and J. Osier. "Geoacoustic Inversion of surficial gassy sediment." Canadian Meteorological and Oceanographic Society, McDonald Building 150 Louis Pasteur, Ste 112 Ottawa, ON, K1N 6N5 Canada. [np]. CMOS Congress 2009 - Sea and Sky Come to Life, Halifax, Nova Scotia (Canada), 31 May - 4 June 2009.
    Geoacoustic parameters of the seafloor in a coastal environment characterized by a surficial gassy sediment layer are estimated using a geoacoustic inversion method. The analysis combines the inversion algorithm called ...
  • Design considerations for RASTRAN-system 2 

    Hazen, D. G., A. E. Hay, and A. J. Bowen. 1988. "Design considerations for RASTRAN-system 2." Proceedings of OCEANS '88 - A Partnership of Marine Interests: 419-22.
    An autonomous, multibeam, multifrequency acoustic backscatter suspended sediment profiler that builds on knowledge gained in deploying a shore-tethered version is discussed. This system allows direct measurement of sediment ...

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