Refereed Publications


Shanks AL, SG Morgan, JH MacMahan, AJHM Reniers, M Jarvis, J Brown*, A Fujimura, L Ziccarelli, and CD Griesemer (2017) Persistent differences in horizontal gradients in phytoplankton concentration maintained by surf zone hydrodynamics. Estuaries and Coasts, doi:10.1007/s12237-017-0278-2. 

Fujimura, A.G., A.J.H.M Reniers, C.B. Paris, A.L. Shanks, J.H. MacMahan, S.G. Morgan (2017) Numiercal simulation of onshore transport of larvae and detritus to a steep pocket beach, Marine Ecology Progress Series, 582, 33-43.

Colosi, J.A., N. Kumar, A. Suanda, T. Freismut, J. MacMahan (2017) Statistics of internal tidal bores and internal solitary waves observed on the inner continental shelf north of Pt. Conception, CA, J. Phys. OC doi:10.1175/JPO-D_17_0045.1

MacMahan, J. (2017) Increased aerodynamic roughness owing to surfzone foam, J. of Physical Oceanography doi:10.1175/JPO-D-17-0054.1.  

Morgan, S.G., A.L. Shanks, J. MacMahan, A.J.H.M Reniers, F. Feddersen (2017) Zooplankton and recruitment limitation on a reflective shore, accepted for Annual Review in Marine Science.

Slivinski, L.C., Pratt, L.J, Rypina I.I, Orescanin, M.M., Raubenheimer, B., MacMahan, J., Elgar, S. (2017) Assimilating Lagrangian data for parameter estimation in a multiple-inlet system, Ocean Modeling.

Shanks AL, MacMahan JH, Morgan SG, Reniers AJHM. 2017. Alongshore variation in rocky shore communities is determined by surfzone hydrodynamics. Ecol. Monogr.

Morgan, SG, Shanks AL, MacMahan JH, Reniers AJHM, Griesemer CD, Jarvis M, Fujimura A, Brown* JA. (2017). Surf zones regulate larval supply and zooplankton subsidies to nearshore communities. Limnol. Oceanogr.

Benbow C.*, J. MacMahan, E.B. Thornton (2017) A temporal and spatial analysis of wave generated foam patterns in the surf zone, J. Coastal Res., doi: 10.2112/JCOASTRES-D-16-00010.1

Roth, M.*, J. MacMahan, A. Reniers, K. Woodall, T. Ozgokmen, and B. Haus (2017) Observations of surface material transport across the nearshore in the Northern Gulf of Mexico, Continental Shelf Res, doi:10.1016/j.csr.2016.12.017


Radermacher M., M. A. de Schipper, C. Swinkels, J. H. MacMahan, and A.J.H.M. Reniers (2016) Tidal flow separation at protruding beach nourishments, J. Geophys. Res. Oceans, 122, doi:10.1002/2016JC011942

MacMahan J. (2016) Observations of oceanic-forced subtidal elevations in a convergent estuary, Estuarine, Coasts, and Shelf Sciences, doi:10.1026/j.ecss.2016.09.002.

Gough, M., A. Reniers, J. Olascoaga, B. Haus, J. MacMahan, J. Paduan, and C. Halle (2016) Lagrangian Coherent Structures in a Coastal Upwelling Environment, Continental Shelf Research, 10.1016/j.csr.2016.09.007.

Shanks A., S.G. Morgan, J. MacMahan, A. J.H.M Reniers, R. Kudela, M. Jarvis, J. Brown*, A. Fujimura, L. Ziccarelli and C. Griesemer (2016) Variation in the abundance of Pseudo-nitzschia and domoic acid with surf zone type, Harmful Algae, doi: 10.1016/j.hal.2016.03.004.

Morgan, S.G., A.L. Shanks, A.G. Fujimura, A. J. H. M. Reniers, J. MacMahan, C. D. Griesemer, M. Jarvis, and J. Brown (2016), Surfzone hydrodynamics as a key determinant of spatial variation in rocky intertidal communities. Royal Society of London, Proc. B, RSPB-2016-1017.R2.

Park, J., MacMahan, J., Sweet, W. V., and Kotun, K. (2016) Continuous seiche in bays and harbors, Ocean Sci. Discuss., 12, 2361-2394, doi:10.5194/osd-12-2361-2015.

Gough, M.K., A.J.H.H Reniers, J. MacMahan, S. Howden (2016) Resonant near-surface inertial oscillations in the northeastern Gulf of Mexico, J. Geophys. Res. Oceans, doi: 10.1002/2015JC011372

Rynne, P., A. Reniers, J. Van de Kreeke, J. MacMahan (2016) The Effect of Tidal Exchange on Residence Time, Estuarine, Coasts, and Shelf Sciences doi:10.1016/j.ecss.2016.02.001

Huguenard, K., D. Bogucki, T. Özgökmen, B. Haus, A. Reniers, J. MacMahan, J. Hargrove, N. Laxague (2016) On the nature of the frontal zone of the Choctawhatchee Bay plume in the Gulf of Mexico, J. of Geophysical Res.. doi:10.1002/2015JC010988


Brown*, J.A., J. MacMahan, A. Reniers, E. Thornton (2015) Field observations of surfzone-inner shelf exchange on a rip channeled beach, J. Physical Oceanography, doi: 10.1175/JPO-D-14_0118.1. 

Shanks A., J. MacMahan, S.G. Morgan, A. J.H.M Reniers, M. Jarvis, J. Brown*, A. Fujimura, and C. Griesemer (2015) Transport of Larvae and Detritus Across the Surf Zone of a Steep Reflective Pocket Beach, Marine Ecology Progress Series, doi:10.3354/meps11223

Valle-Levinson, A., K. Huguenard, L. Ross, J. Branyon, J. MacMahan, A. Reniers (2015) Tidal and nontidal exchange at Destin Inlet, Northwest Florida, Estuarine, Coasts, and Shelf Sciences. doi:10.1016/j.ecss.2015.01.020

MacMahan. J. (2015) Low frequency seiche in a Large Bay. J. of Physical Oceanography. Doi:10.1175/JPO-D_14-0169.1


Swick* W., J. MacMahan, A. Reniers, Thornton (2014) Observations and modeling of transverse mixing in a natural gravel-bed river, Journal of River Engineering, Vol. 2, Issue 9.

Brouwer, R.L., M.A. de Schipper. P.F. Rynne, F.J. Graham, A. Reniers, J. MacMahan (2014) Surfzone monitoring using rotary wing unmanned aerial vehicles, J. Atmospheric & Oceanic Tech. doi: 10.1175/JTECH-D-14-00122.1

Bradstreet, A., R.W. Brander, J.R. McCarroll, B. Brighton, D.D. Howes, D. Drozdzewski, S. Sherker, I. Turner, A. Roberts, and J. MacMahan (2014) Rip current survival principles: toward consistency, J. Coastal Res. 72, 85-92 DOI: 10.2112/SI72-016.1

Castelle, B., A. Reniers, J. MacMahan (2014) Numerical modeling of surfzone retention on open rip channeled beaches exposed to shore-normal incident waves: impact of nearshore bathymetry, Ocean Dynamic. Doi:10.1007/s10236-014-0747-0

Fujimura, A., A.J.H.M. Reniers, C.B. Paris, A.L. Shanks, J. MacMahan, and S.G. Morgan, (2014) Numerical simulations of larval transport into a rip-channeled surf zone, Limnology and Oceanography, doi:10.4319/lo.2014.59.4.1434.

Spydell, M.S., F. Feddersen, R.T. Guza, J. MacMahan (2014) Relating Lagrangian and Eulerian horizontal eddy statistics in the surf zone, J. Geophys. Res. DOI: 10.1002/2013JC009415

MacMahan, J., J. van de Kreeke, A.J.H.M. Reniers, S. Elgar, B. Raubenheimer, E. Thornton, M. Weltmer*, P. Rynne, J.A. Brown* (2014) Fortnightly tides and subtidal motions in a choked inlet, Estuarine, Coasts and Shelf Sciences. doi: 10.1016/j.ecss.2014.03.025.

Shanks, A.L., S.G. Morgan, J. MacMahan, A.J.H.M. Reniers, M. Jarvis, J.A. Brown*, A. Fujimura, and C. Griesemer (2014) Onshore transport of plankton by internal tides and upwelling-relaxation events. Marine Ecology Progress Series. doi:10.3354/meps10717.

McCarroll, R.J., R.W. Brander, J. MacMahan, I.L. Turner, A.J.H.M. Reniers, J.A. Brown*, A. Bradstreet, and S. Sherker (2014) Evaluation of swimmer-based rip current escape strategies, Natural Hazards doi10.1007/s11069-013-0979-1

Landon, K.C., G.W. Wilson, H.T. Okzan-Haller, and J. MacMahan (2014) Bathymetry estimation using drifter-base velocity measurements on the Kootenai River, ID, USA, JTECH, doi:10.1175/JTECH-D-13-00123.1.

Coco, G. N. Senechal, A. Rejas, K.R. Bryan, S. Capo, J.P. Parisot, J. Brown*, J.H.M. MacMahan (2014), Beach response to a sequence of extreme storms, Geomorphology, DOI: 10.1016/j.geomorph.2013.08.028.


Reniers, A.J.H.M., E.L. Gallagher, J.H. MacMahan, J.A. Brown*, A.R. van Rooijen, J.S.M. van Thiel de Vries, and B. van Prooijen (2013) Observations and modeling of steep-beach grain-size variability, J. Geophysical Res. DOI: 10.1029/2012JC008073


Fiorentino, L.A., M.J. Olascoaga, A. Reniers, Z. Feng, F.J. Beron-Vera, J.H. MacMahan (2012), Using Lagrangian Coherent Structures in tidal flows to understand coastal water quality, Continental Shelf Res. doi 10.1016/j.csr.2012.07.009.

MacMahan, J., A. Reniers, W. Ashley*, E. Thornton (2012) Frequency-Wavenumber Velocity Spectra, Taylor’s Hypothesis and Length-Scales in a Natural Gravel-Bed River, Water Resources Research doi:10.1029/2011WR011709

Herbers, T., P.F. Jessen, T.T. Janssen, D.B. Colbert, J.H. MacMahan (2012) Observing ocean surface waves with GPS-tracked buoys, Journal of Atmospheric and Oceanic Technology, doi 10.1175/JTECH-D-11-00128.1.

MacMahan, J., R. Vennell, R. Beatson, J. Brown*, A. Reniers (2012), Divergence-Free Spatial Velocity Flow Field Interpolator for Improving Measurements from ADCP-equipped Small Unmanned Underwater Vehicles, J. of Atmospheric & Oceanic Technology, doi 10.1175/JTECH-D-11-00084.1.


Brander, R., A. Bradstreet, S. Sherker, J. MacMahan (2011). The behavioral responses of swimmers caught in rip currents: new perspectives on mitigating the global rip current hazard. International Journal of Aquatic Research and Education, 5, 476-482

Brown, J.*, C. Tuggle*, J. MacMahan, A. Reniers (2011), The use of autonomous vehicles for spatially measuring mean velocity profiles in rivers and estuaries, Intelligent Service Robotics. doi: 10.1007/s11370-011-0095-6

Orzech, M*, A.J.H.M. Reniers, E.B. Thornton, and J. MacMahan (2011), Megacusps on Rip Channel Bathymetry: Observations and Modeling, Coastal Eng. doi:10.1016/j.coastaleng.2011.05.001

MacMahan, J., A. Reniers, J. Brown*, R. Brander, E. Thornton, T. Stanton, J. Brown*, and W. Carey (2011), An introduction to rip currents based on field observations, Editorial, J. of Coastal Research. doi: 10.2112/JCOASTRES-D-11-00024.1

Senechal, N., S. Abadie, E. Gallagher, J.H.M. MacMahan, G. Masselink, H. Michallet, A. J.H.M. Reniers, B.G. Ruessink, P.E. Russell, D. Sous, I.L. Turner, F. Ardhuin, P. Bonneton, S. Bujan, S. Capo, R. Certain, T. Garlan, R. Pedreros (2011), The ECORS-Truc Vert'08 nearshore field experiment: Presentation of a three-dimensional morphologic system in a macro-tidal environment during consecutive extreme storm conditions, Ocean Dynamics doi: 10.1007/s10236-011-0472-x.

Gallagher, E. L., J. MacMahan, A. Reniers, J. Brown* and E. Thornton (2011), Grain Size Variability on Rip-Channeled Beaches Measured with a Digital Imaging System, Marine Geology DOI:10.1016/j.margeo.2011.06.010.

Laudier, N*. E.B. Thornton and J.H. MacMahan (2011), Wave Overtopping of a Barrier Beach, Coastal Eng. doi:10.1016/j.coastaleng.2011.04.005

Geiman, J.D., J.T. Kirby, A.J.H.M. Reniers and J.H. MacMahan (2011), Effects of wave-averaging on estimates of fluid mixing in the surf zone, J. Geophys. Res. doi: 10.1029/2010JC006678


MacMahan, J. H., J. Brown*, J. Brown*, E. B. Thornton, A. J. H. M. Reniers, T. P. Stanton, M. Henriquez, E. Gallagher, J. Morrison*, M. Austin, T. Scott and N. Senechal (2010), Mean Lagrangian Flow Behavior on an Open Coast Rip-channeled Beaches: New Perspectives, Mar. Geol., doi: 10.1016/j.margeo.2009.09.011.

Dalrymple, R.A., J.H. MacMahan, A.J.H.M. Reniers and V. Nelko (2010), Rip Currents, Annul. Rev. Fluid Mech. doi:10.1146/annurev-fluid-122109-160733.

Orzech, M.*, E.B. Thornton, J.H. MacMahan, W.C. O'Reilly and T.P. Stanton (2010), Alongshore rip migration and sediment transport, Mar. Geol. doi: 10.1016 /j.margeo.2010.02.022.

Austin, M.J., T.M. Scott, J.W. Brown*, J.A. Brown*, J. MacMahan, G. Masselink and P.E. Russell (2010), Macro-tidal rip current dynamics. Continental Shelf Research, doi:10.1016/j.csr.2010.03.005.

Reniers, A.J.H.M., J.H. MacMahan, F.J. Beron-Vera and M.J. Olascoaga (2010), Rip-Current Pulses Tied to Lagrangian Coherent Structures, Geophys. Res. Letters, doi:10.1029/2009GL041443.

MacMahan, J. H., A. J. H. M. Reniers and E. B. Thornton (2010), Vortical surf zone velocity fluctuations with 0(10) min period, J. Geophys. Res., 115, C06007, doi:10.1029/2009JC005383.

Shanks, A., S. Morgan, J. MacMahan and A. Reniers (2010), Surfzone hydrodynamics as a determinant of temporal and spatial variation in larval recruitment, Journal of Experimental Marine Biology and Ecology, doi:10.1016/j.jembe.2010.04.018.

Hampson, R., J. MacMahan and J. Kirby (2010), A Low-Cost Hydrographic Kayak Surveying System, J of Coastal Research, doi: 10.2112/jcoastres-d-09-00108.1.


Hendrickson, J. * and J. MacMahan (2009), Diurnal Sea Breeze Effects on Inner-shelf Cross-Shore Exchange, Continental Shelf Research, doi:10.1016/ j.csr.2009.08.011.

Austin, M.J., T. M. Scott, J.W. Brown*, J.A. Brown* and J. MacMahan (2009), Macrotidal rip current experiment: circulation and dynamics J. Coastal Res. SI 56. 

Reniers, A., J.H. MacMahan, E. B. Thornton, T. P. Stanton, Henriquez, M., J. Brown*, J. Brown* and E. Gallagher (2009), Surfzone Retention on a Rip Channeled Beach, J. Geophys. Res., 114, C10010,doi:10.1029/2008JC005153.

Brown, J.*, J.H. MacMahan, A. Reniers and E. Thornton (2009), Surfzone diffusivity on a Rip Channeled Beach, J. Geophys. Res., doi:10.1029/2008JC005158.

MacMahan, J., J. Brown* and E.B. Thornton (2009), Low-cost handheld Global Positioning Systems for measuring surf zone currents, J. Coastal Res, DOI: 10.2112/08-1000.1.


MacMahan, J. H., E.B. Thornton, A.J.H.M. Reniers, T.P. Stanton and G. Symonds (2008), Rip Currents Induced by Small Bathymetric Variations, Marine Geology, doi: 10.1016/j.margeo.2008.08.006.


Thornton, E.B., J. MacMahan and A.H. Sallenger (2007), Rip currents, cuspate shorelines and eroding dunes, Mar. Geol., 240 (1-4), 151-167.

Reniers, A., J. MacMahan, E. B. Thornton and T. P. Stanton (2007), Modeling of very low frequency motions during RIPEX, J. Geophys. Res., doi:10.1029/ 2005JC003122.


MacMahan, J. H., E.B. Thornton and A. J. H. M. Reniers (2006), Rip current overview. Coastal Eng., 53, 191-208.

Reniers, A.J.H.M, J. MacMahan, E. B. Thornton and T.P. Stanton (2006), Modelling infragravity motions on a rip-channeled beach, Coastal Eng., 53, 209-222.


MacMahan, T. Stanton, E.B. Thornton and A.J.H.M. Reniers (2005), RIPEX-Rip Currents on a shore-connected shoal beach, Mar. Geol., 218, 113-134.


MacMahan, J. H., A. J. H. M. Reniers, E. B. Thornton and T. P. Stanton (2004), Surf zone eddies coupled with rip current morphology, J. Geophys. Res., 109, C07004, doi:10.1029/2003JC002083.

MacMahan, J., A.J.H.M. Reniers, E.B. Thornton and T. Stanton (2004), Infragravity rip current pulsations, J. of Geophys. Res., 109, C01033, doi:10.1029/2003JC-002068.


MacMahan, J. (2001), Hydrographic surveying from a personal watercraft. J. Surveying, Engrg. 127 (1), 12-24.

Pending Publications

Brown*, J.A., J. MacMahan, A. Reniers, E. Thornton, A.L. Shanks, S.G. Morgan, and E. Gallagher, (2017) Mass Transport on a Steep Beach, in revision for Continental Shelf Research.

Thornton, E.B., J. MacMahan , C. Gon*, A. Reniers, S. Elgar (2017) Tidal wave reflection and distortion is Elkhorn Slough, CA., in revision to J. of Geophys. Res.

Morgan, S.G., A.L. Shanks, J. MacMahan, A.J.H.M Reniers, C.D. Griesemer, and M. Jarvis (2017) High zooplankton concentrations on a rip-channeled beach, submitted to Marine Ecology Progress Series.

Morgan, S.G., A.L. Shanks, J. MacMahan, A.J.H.M Reniers, C.D. Griesemer, M. Jarvis, A. Fujimura, and J. Brown (2017) Zooplankton and recruitment limitation on a reflective shore, submitted to Marine Ecology Progress Series.

Roth, M.*, D. Kuitenbrouwer, J. MacMahan, A. Reniers, and T. Ozgokmen (2017) Along-shelf Currents Forced by Cross-shore Winds in the Inner Shelf of the Northeastern Gulf of Mexico, in revision to J. Geophys. Res.

Roth, M.*, K. Huguenard, J. MacMahan (2017) Observations of small-scale river plume thickness modified by ambient inner shelf currents and winds, in revision for J. Physical Oceanography.

Colosi, J.A., T. Freismuth*, J. MacMahan, N. Kumar, and A. Suanda (2017) Statistics of Internal Tide Bores and Internal Solitary Waves Observed on the Inner Continental Shelf North of Pt. Conception CA, in revision to J. Phys. Oc.

Freismuth*, T., D. Cai, J.H. MacMahan, K.A. Haas, S. Suanda, J.A. Colosi, N. Kumar, E. Di Lorenzo, A. Miller, and C. Edwards (2017) Upwelling response to subtidal, alongshore inner shelf flow around a small-scale coastline promontory submitted to J. of Physical Oceanography.

Freismuth*, T., J. MacMahan, Colosi, J.A. (2017), Internal wave heat and energy flux, in preparation to J. Phys. Oc.

Kuitenbrouwer, D., A. Reniers, J. MacMahan, M. Roth* (2017), Coastal protection by a small scale river plume against oil spills in the Northern Gulf of Mexico, in preparation to Continental Shelf Research.

Hargrove, J.T., H.C. Graber, J. MacMahan, B. Haus, R. Romeiser, and A. Reniers (2017) Satellite observations of a tidal plume cycle in the Gulf of Mexico, in preparation for J. Physical Oceanography.

* Represents MacMahan’s Students