Positions

Research Areas research areas

Overview

  • Dr. Anthony Lyons is currently a Research Professor in the Center for Coastal and Ocean Mapping and is the Associate Director for Research in the Center for Acoustics Research and Education. Anthony P. Lyons received the B.S. degree in Physics from Henderson State University, Arkadelphia, AR, in 1988. After receiving his PhD in Oceanography from Texas A&M University in 1995, Dr. Lyons worked in the Fine-Scale Acoustics and Oceanography Group at the SACLANT Undersea Research Centre, La Spezia, Italy, from 1995 to 2000 where he was involved in a variety of projects in the area of environmental acoustics. Previous to taking his position at the University of New Hampshire, Dr. Lyons was a Senior Scientist at the Applied Research Laboratory at Penn State and a Professor of Acoustics in Penn State’s Graduate Program in Acoustics. While on sabbatical, he worked in the Electrical and Computer Engineering Department at the University of Canterbury, Christchurch, New Zealand, in 2008. Dr. Lyons also worked for the US Office of Naval Research Global in 2008 and 2014. His research projects have included studies of shallow-water acoustic propagation, acoustic interaction with the seafloor, characterization of seafloor sediments and high-resolution oceanographic measurements. Dr. Lyons was awarded, with the recommendation of the Acoustical Society of America, the Institute of Acoustics' (U.K.) A.B. Wood Medal in 2003. He is a Fellow of the Acoustical Society of America (2007) and a member of the IEEE Oceanic Engineering Society.
  • Selected Publications

    Academic Article

    Year Title
    2025 Overview of the Atlantic Deepwater Ecosystem Observatory NetworkOceanography2025
    2024 An experimental test of endfire synthetic aperture sonar for sediment characterisationIET Radar, Sonar and Navigation .  18:2057-2065. 2024
    2024 Measurements of temporal variability of acoustic scattering from the seafloor in shallow-water sandy sites.Journal of the Acoustical Society of America.  156:2727-2742. 2024
    2022 Modeling the effect of random roughness on synthetic aperture sonar image statistics.Journal of the Acoustical Society of America.  152:1363. 2022
    2022 Development and Experimental Validation of Endfire Synthetic Aperture Sonar for Sediment Acoustics StudiesIEEE Journal of Oceanic Engineering.  47:472-482. 2022
    2021 Quantitative Soundscape Analysis to Understand Multidimensional FeaturesFrontiers in Marine Science.  8. 2021
    2021 Measuring shallow-water bathymetric signal strength in lidar point attribute data using machine learningInternational Journal of Geographical Information Science.  35:1592-1610. 2021
    2021 Resolution dependence of rough surface scattering using a power law roughness spectrum.Journal of the Acoustical Society of America.  149:28. 2021
    2020 Direct inference of first-year sea ice thickness using broadband acoustic backscattering.Journal of the Acoustical Society of America.  147:824. 2020
    2019 Scattering statistics of rock outcrops: Model-data comparisons and Bayesian inference using mixture distributions.Journal of the Acoustical Society of America.  145:761. 2019
    2018 An Empirical Mode Decomposition-based detection and classification approach for marine mammal vocal signals.Journal of the Acoustical Society of America.  144:3181. 2018
    2018 Measurements of two-dimensional spatial coherence of normal-incidence seafloor scattering.Journal of the Acoustical Society of America.  144:2095. 2018
    2018 Matched-Filter Loss From Time-Varying Rough-Surface Reflection With a Small Effective Ensonified AreaIEEE Journal of Oceanic Engineering.  43:506-522. 2018
    2017 A metric for characterization of two-dimensional spatial coherence.Journal of the Acoustical Society of America.  142:EL313. 2017
    2016 Measurements of high-frequency acoustic scattering from glacially eroded rock outcrops.Journal of the Acoustical Society of America.  139:1833. 2016
    2015 The Effect of Internal Wave-Related Features on Synthetic Aperture SonarIEEE Journal of Oceanic Engineering.  40:621-631. 2015
    2013 The Impact of the Temporal Variability of Seafloor Roughness on Synthetic Aperture Sonar Repeat-Pass InterferometryIEEE Journal of Oceanic Engineering.  38:91-97. 2013
    2011 Consistency in statistical moments as a test for bubble cloud clustering.Journal of the Acoustical Society of America.  130:3396-3405. 2011
    2010 Measurement and Modeling of Seabed Particle Motion Using Buried Vector SensorsIEEE Journal of Oceanic Engineering.  35:516-537. 2010
    2010 Editorial: Non-Rayleigh Reverberation and ClutterIEEE Journal of Oceanic Engineering.  35:147-151. 2010
    2010 Modeling the Effect of Seafloor Ripples on Synthetic Aperture Sonar Speckle StatisticsIEEE Journal of Oceanic Engineering.  35:242-249. 2010
    2010 Reliable Methods for Estimating the K-Distribution Shape ParameterIEEE Journal of Oceanic Engineering.  35:288-302. 2010
    2009 Acoustic Observation of the Time Dependence of the Roughness of Sandy SeafloorsIEEE Journal of Oceanic Engineering.  34:407-422. 2009
    2009 Comparison of Seafloor Roughness and Scattered Acoustic Temporal DecorrelationIEEE Journal of Oceanic Engineering.  34:423-430. 2009
    2009 High-Frequency Scattered Envelope Statistics of Patchy SeafloorsIEEE Journal of Oceanic Engineering.  34:451-458. 2009
    2009 The Impact of Multipath on High-Resolution SAS Image StatisticsIEEE Journal of Oceanic Engineering.  34:476-484. 2009
    2009 Corrections to Fluid-Filled Passive Sonar Calibration Spheres: Design, Modeling, and Measurement [Jan 09 93-100]IEEE Journal of Oceanic Engineering.  34:202-202. 2009
    2009 Fluid-Filled Passive Sonar Calibration Spheres: Design, Modeling, and MeasurementIEEE Journal of Oceanic Engineering.  34:93-100. 2009
    2008 Observations of clustering inside oceanic bubble clouds and the effect on short-range acoustic propagation.Journal of the Acoustical Society of America.  124:2783-2792. 2008
    2008 Special issue on Non-Rayleigh reverberation and clutterIEEE Journal of Oceanic Engineering.  33:356-356. 2008
    2008 Special issue on Non-Rayleigh reverberation and clutterIEEE Journal of Oceanic Engineering.  33:232-232. 2008
    2007 Acoustic propagation through clustered bubble cloudsIEEE Journal of Oceanic Engineering.  32:513-523. 2007
    2006 Modeling the effect of multipath on high-resolution synthetic aperture sonar image statisticsJournal of the Acoustical Society of America.  120:3142-3142. 2006
    2006 Shallow seabed methane gas could pose coastal hazardEos.  87:213-217. 2006
    2005 The potential impact of shell fragment distributions on high-frequency seafloor backscatterIEEE Journal of Oceanic Engineering.  30:843-851. 2005
    2005 An estimate of the gas transfer rate from oceanic bubbles derived from multibeam sonar observations of a ship wakeJournal of Geophysical Research: Oceans.  110:1-11. 2005
    2004 Advances in high-resolution seafloor characterization in support of high-frequency underwater acoustics studies: Techniques and examplesMeasurement Science and Technology.  15:R59-R72. 2004
    2004 Non-Rayleigh reverberation and clutterIEEE Journal of Oceanic Engineering.  29:193-196. 2004
    2004 Simulation of non-Rayleigh reverberation and clutterIEEE Journal of Oceanic Engineering.  29:347-362. 2004
    2004 Reverberation envelope statistics and their dependence on sonar bandwidth and scattering patch sizeIEEE Journal of Oceanic Engineering.  29:126-137. 2004
    2003 High-frequency seafloor studies using buried directional receiversJournal of the Acoustical Society of America.  113:2318-2318. 2003
    2002 Normal incidence reflection loss from a sandy sediment.Journal of the Acoustical Society of America.  112:1831-1841. 2002
    2002 Novel physical interpretations of K-distributed reverberationIEEE Journal of Oceanic Engineering.  27:800-813. 2002
    2002 Backscattering from bioturbated sediments at very high frequencyIEEE Journal of Oceanic Engineering.  27:388-402. 2002
    2002 Characterization of the two-dimensional roughness of wave-rippled sea floors using digital photogrammetryIEEE Journal of Oceanic Engineering.  27:515-524. 2002
    2001 Overview of SAX99: Environmental considerationsIEEE Journal of Oceanic Engineering.  26:26-53. 2001
    2000 Penetration of acoustic waves into rippled sandy seafloors.Journal of the Acoustical Society of America.  108:2071-2081. 2000
    1999 Statistical characterization of high-frequency shallow-water seafloor backscatterJournal of the Acoustical Society of America.  106:1307-1315. 1999
    1998 Bubble populations and acoustic interaction with the gassy floor of Eckernforde BayContinental Shelf Research.  18:1807-1838. 1998
    1998 The effect of a layer of varying density on high-frequency reflection, forward loss, and backscatterIEEE Journal of Oceanic Engineering.  23:411-422. 1998
    1996 On the relative importance of refractive index fluctuations and sea surface roughness to amplitude variability in a multipath environmentJournal of the Acoustical Society of America.  100:2702-2702. 1996
    1996 X-ray tomographic analysis of sediment macrostructure in Eckernforde Bay, western Baltic SeaGeo-Marine Letters: an international journal of marine geology.  16:232-239. 1996
    1996 Predictions of the acoustic scattering response of free-methane bubbles in muddy sedimentsJournal of the Acoustical Society of America.  99:163-172. 1996
    1994 ACOUSTIC SCATTERING FROM THE SEA-FLOOR - MODELING AND DATA COMPARISONJournal of the Acoustical Society of America.  95:2441-2451. 1994

    Conference Paper

    Year Title
    2016 Matched-filter loss from time-varying rough-surface reflection with a small ensonified areaOCEANS 2016 MTS/IEEE MONTEREY. 1-7. 2016
    2015 Moment-based method to statistically categorize rock outcrops based on their topographical featuresOCEANS 2015 - MTS/IEEE Washington. 1-5. 2015
    2015 Scale-model scattering experiments using 3D printed representations of ocean bottom featuresOCEANS 2015 - MTS/IEEE Washington. 1-7. 2015
    2013 Seafloor measurements using synthetic aperture sonarProceedings of Meetings on Acoustics. 070002-070002. 2013
    2013 The impact of finite ensonified area on the scattering cross sectionProceedings of Meetings on Acoustics. 070012-070012. 2013
    2006 Bootstrapped K-distribution parameter estimationOceans Conference Record (IEEE). 71-+. 2006
    2006 Roughness spectra and acoustic response from a diver-manipulated sea floorOceans Conference Record (IEEE). 113-+. 2006
    2004 Use of X-ray computed tomography for the estimation of parameters relevant to the modeling of acoustic scattering from the seafloorNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 491-497. 2004
    2001 Exponential scattering and K-distributed reverberationOCEANS 2001 MTS/IEEE: AN OCEAN ODYSSEY, VOLS 1-4, CONFERENCE PROCEEDINGS. 1622-1628. 2001
    1998 Measurement of seafloor roughness with close range digital photogrammetryOCEANS'98 - CONFERENCE PROCEEDINGS, VOLS 1-3. 129-133. 1998
    1996 Normal incidence seafloor classification using a parametric arrayOCEANS '96 MTS/IEEE, CONFERENCE PROCEEDINGS, VOLS 1-3 / SUPPLEMENTARY PROCEEDINGS. 1052-1057. 1996

    Principal Investigator On

  • Measuring and Modeling Internal Wave Properties and Their Effects on High Frequency Imaging Sonar  awarded by Office of Naval Research 2021 - 2024
  • Multi-Look SAS Techniques  awarded by Office of Naval Research 2020 - 2024
  • Temporal Changes Seafloor  awarded by Office of Naval Research 2019 - 2023
  • Continuing studies of multi-Look SAS techniques for target detection and classification  awarded by Office of Naval Research 2020 - 2023
  • Acoustic Scattering from Biologically Active Fine-Grained Sediments  awarded by US DOD, Navy 2020 - 2022
  • Arctic Ice Experiments  awarded by Massachusetts Institute of Technology 2021 - 2022
  • Measuring and Modeling Temporal Changes in the Seafloor Scatter and its Relationship with Environmental Variability  awarded by Office of Naval Research 2019 - 2022
  • DURIP  awarded by Office of Naval Research 2020 - 2022
  • DURIP-DEPSCoR Proposal (ONR Ocean Acoustics Program)  awarded by Office of Naval Research 2020 - 2022
  • Experimental Measurements of High-Frequency Scattering from Sea Ice Over Annual Cycles  awarded by US DOD, Navy 2017 - 2021
  • High-Frequency Scattering  awarded by US DOD, Navy 2017 - 2021
  • Multi-Look SAS Analysis for Separation of Coherent and Non-Coherent Scattering Mechanisms  awarded by US DOD, Navy 2016 - 2020
  • Scattering Mechanisms  awarded by US DOD, Navy 2016 - 2020
  • Imaging SAS Performance Estimation  awarded by US DOD, Navy 2016 - 2020
  • SAS Performance Estimation  awarded by US DOD, Navy 2016 - 2020
  • Quantitative 3D Measurements of Shoaling and Breaking Internals Waves Using SAS Imagery  awarded by US DOD, Navy 2016 - 2017
  • Education And Training

  • B.S., Henderson State University
  • M.S. Oceanography(Chem.&Physical), Texas A & M University
  • PHD Oceanography(Chem.&Physical), Texas A & M University
  • Full Name

  • Anthony Lyons
  • Mailing Address

  • University of New Hampshire

    Center for Coastal and Ocean Mapping

    24 Colovos Road

    Durham, New Hamphshire  03824

    United States