Mike Kosro


Office: 541-737-3079

Burt Hall

Burt Hall 296

2651 SW Orchard Avenue

2651 SW Orchard Avenue
Corvallis, OR 97331

Profile Field Tabs

Brief Research Interests: 

Coastal oceanography, shelf/deep-sea exchange processes, remote sensing, ocean acoustics, ocean circulation


Research Interests

Coastal oceanography; shelf/deep-sea exchange processes; eastern boundary currents; California and Peru/Chile Undercurrent; remote sensing; ocean acoustics; ocean circulation.

Current Research

Measurements of ocean currents and water properties on frontal and larger scales, using a coastal-circulation radio-mapping technique, drifters and moored current meters, and shipborne/towed profilers; properties of coastal eddies and their effect on cross-shelf exchange; study of poleward undercurrents along the continental slope.


BA, University of California, Santa Cruz (Physics), 1973
PhD, Scripps Institution of Oceanography, 1985


Pasmans, I., A. L. Kurapov, J. A. Barth, P. M. Kosro, R.K. Shearman (2020).  Ensemble of 4DVARs (En4DVar) data assimilation in a coastal ocean circulation model, Part II: Implementation offshore Oregon-Washington, USA, Ocean Modelling, Accepted.

Risien, C. M., J. A. Newton, T. Tanner, P. M. Kosro, E. Mayorga, R. Wold, J. C. Allan, and C. Seaton (2020), The NANOOS Visualization System (NVS): A Decade of Development and Progress Addressing Stakeholder Needs, Oceans 2019/IEEE, Seattle, 27-31 Oct 2019.

Barth, J.A., S. Allen, E.P. Dever, R. Dewey, W. Evans, R.A. Feely, J. Fisher, J.P. Fram, B. Hales, D. Ianson, J. Jackson, K. Juniper, O. Kawka, D. Kelly, J.M. Klymak, J. Konovsky, P.M. Kosro, A. Kurapov, E. Mayorga, P. McCready, J. Newton, I. Perry, C.M. Risien, M. Robert, T. Ross, R.K. Shearman, J. Schumacker, S. Siedliecki, V.L. Trainer S. Waterman, C.E. Wingard,  2019. “Better Regional Ocean Observing through Cross-Nation Cooperation: A case study from the Northeast Pacific”, Frontiers in Marine Science, doi://10.3389/fmars.2019.00093.

Pasmans, Ivo, Alexander Kurapov, John Barth, Alexander Ignatov, Michael Kosro, R. Kipp Shearman (2019). Why gliders appreciate good company: Glider assimilation in the Oregon-Washington coastal ocean 4DVAR system with and without surface observations.  Journal of Geophysical Research, 124(1): 750-772, 10.1029/2018JC014230.

Soh, Hyun Sup, Sung Yong Kim, P. Michael Kosro, and Alexander Kurapov (2018). Do nonorthogonally and irregularly sampled scalar velocities contain sufficient information to reconstruct an orthogonal vector current field? Journal of Atmospheric and Oceanic Technology, 35(4): 763-795. 10.1175/JTECH-D-17-0062.1.

Yoo, Jang Gon, Kim, Sung Yong, Cornuelle, Bruce D., Kosro, P. Michael, & Kurapov, Alexander L. (2017). A Noninterpolated Estimate of Horizontal Spatial Covariance from Nonorthogonally and Irregularly Sampled Scalar Velocities. Journal of Atmospheric and Oceanic Technology, 34(11), 2407–2430. http://doi.org/10.1175/JTECH-D-17-0100.1

Hickey, B., S. Geier, N. Kachel, S. Ramp, P.M. Kosro, T. Connolly, 2016.  Alongcoast structure and interannual variability of seasonal midshelf water properties and velocity in the Northern California Current system.  J. Geophys. Res., 121 (C10), 7408-7430.  doi:10.1002/2015JC011424.

Sherman, Kate, Jack Barth, Flaxen Conway, Craig Risien, Mike Kosro, 2016.  The Oregon Nearshore Research Inventory project: the importance of science and the scientific community as stakeholders in marine spatial planning.  Ocean & Coastal Management, 130:290-298, doi: 10.1016/j.ocecoaman.2016.04.003.

Kim, Sung Yong, Alexander L. Kurapov, and P. Michael Kosro, 2015.  Influence of varying upper ocean stratification on coastal near-inertial currents.  Journal of Geophysical Research, 120(C12):8504-8527, doi:10.1002/2015JC011153.

Mazzini, Piero L. F., Craig M. Risien, John A. Barth, Stephen D. Pierce, Anatoli Erofeev, Edward P. Dever, P. Michael Kosro, Murray D. Levine, R. Kipp Shearman, Michael Vardaro, 2015.  Anomalous near-surface low-salinity pulses off the central Oregon coast.  Nature Scientific Reports, 5 (17145).  doi:10.1038/srep17145.

Durski, S.M., A.L. Kurapov, J.S. Allen, P.M. Kosro, G.D. Egbert, R.K. Shearman, John A. Barth, 2015.  Coastal ocean variability in the U.S. Pacific Northwest region: seasonal patterns, winter circulation and the influence of the 2009-2010 El Niño. Ocean Dynamics, 65:1643-1663, doi: 10.1007/s10236-015-0891-1.

Yamada, Sylvia Behrens, William T. Peterson, and P. Michael Kosro, 2015.  Biological and physical ocean indicators predict the success of an invasive crab, Carcinus maenas, in the northern California Current.  Marine Ecology Progress Series. 537: 175-189. doi: 10.3354/meps11431.

Kim, Sung Yong, P. Michael Kosro and Alexander L. Kurapov, 2014.  Evaluation of directly wind-coherent near-inertial currents off Oregon using a statistical parameterization and analytical and numerical models.   J. Geophys. Res.,  119(10):6631-6654, doi: 10.1002/2014JC010115.

Osborne, J. J., A. L. Kurapov, G. D. Egbert, P. M. Kosro, 2014. Intensified diurnal tides along the Oregon coast”.  J. Phys. Oceanogr., 44(7): 1689-1703, doi:10.1175/JPO-D-13-0247.1.

Kim, Sung Yong, Eric J. Terrill, Bruce D. Cornuelle, Burt Jones, Libe Washburn, Mark Moline, Jeffrey D. Paduan, Newell Garfield, John L. Largier, Greg Crawford, and P. Michael Kosro.  Poleward propagating subinertial alongshore surface currents off the U.S. West Coast. Journal of Geophysical Research, 118: 6791-6806, doi:10.1002/jgrc.20400.

Kim, Sung Yong, and P. Michael Kosro, 2013.  Observations of near-inertial surface currents off Oregon: decorrelation time and length scales. Journal of Geophysical Research, 118, doi: 10.1002/jgrc.20235.

Hickey, Barbara M., Vera L. Trainer, P. Michael Kosro, Nicolaus G. Adams, Thomas P. Connolly, Nancy B. Kachel, Susan L. Geier, 2013. A springtime source of toxic Pseudo-nitzschia cells on razor clam beaches in the Pacific Northwest.  Harmful Algae, 25: 1-14. doi:10.1016/j.hal.2013.01.006.

Yu, P., A.L. Kurapov, G.D. Egbert, J.S. Allen, P.M. Kosro, 2012. Variational assimilation of HF radar surface currents in a coastal ocean model off Oregon. Ocean Modelling, v49-50, 86-104. doi:1016/j.ocemod.2012.03.001.

Osborne, J.J., A.L. Kurapov, G.D. Egbert, P.M. Kosro, 2011. Spatial and temporal variability of the M2 internal tide generation and propagation on the Oregon shelf. Journal of Physical Oceanography, 41(11): 2037-2062.  doi: 10.1175/JPO-D-11-02.1

Kim, S.Y., E. Terrill, B. Cornuelle, B. Jones, L. Washburn, M. Moline, J. Paduan, N. Garfield, J.L. Largier, G. Crawford, P.M. Kosro, 2011. Mapping the U.S. West Coast surface circulation: A multiyear analysis of high-frequency radar observations. Journal of Geophysical Research, 116, doi:10.1029/2010JC006669.

Raphael M. Kudela, Alexander R. Horner‐Devine, Neil S. Banas, Barbara M. Hickey, Tawnya D. Peterson, Ryan M. McCabe, Evelyn J. Lessard, Elizabeth Frame, Kenneth W. Bruland, David A. Jay, Jay O. Peterson, William T. Peterson, P. Michael Kosro, Sherry L. Palacios, Maeve C. Lohan, and Edward P. Dever, 2010. Multiple trophic levels fueled by recirculation in the Columbia River plume. Geophys. Res. Letts, 37(L18607) 1-7, doi:10.1029/2010GL044342.

Yamada, Sylvia Behrens, and P. Michael Kosro, 2010. Can ocean conditions predict recruitment strength of the invasive Eropean green crab, Carcinus maenas? Biological Invasions, 12(6):1791-1804, doi:10.1007/s10530-009-9589-y.

Hickey, B.M, R.M. Kudela, J.D. Nash, K.W. Bruland, W.T. Peterson, P. MacCready, E.J. Lessard, D.A. Jay, N.S. Banas, A.M. Baptista, E.P. Dever, P.M. Kosro, L.K. Kilcher, A.R. Horner-Devine, E.D. Zaron, R.M. McCabe, J.O. Peterson, P.M. Orton, J. Pan and M.C. Lohan, 2010. River Influences on Shelf Ecosystems: Introduction and Synthesis. Journal of Geophysical Research, 115, C00B17, doi:10.1029/2009JC005452.

Liu, Yonggang, Parker MacCready, Barbara M. Hickey, Edward P. Dever, P. Michael Kosro, and Neil S. Banas, 2009. Evaluation of a Coastal Ocean Circulation Model for the Columbia River Plume in Summer 2004. Journal of Geophysical Research, 114 C00B04, doi:10.1029/2008JC004929.

Saraceno, M., P. T. Strub, and P. M. Kosro, 2008. "Estimates of sea surface height and near surface alongshore coastal currents from combinations of altimeters and tide gauges", Journal of Geophysical Research, 113, C11013, doi:10.1029/2008JC004756.

Huyer, A, P.A. Wheeler, Strub, P.T., R.L. Smith, R. Letelier, P.M. Kosro, 2007. "The Newport Line off Oregon - studies in the north east Pacific", Progress in Oceanography,75, 126-160, doi:10.1016/j.pocean.2007.08.003.

Perlin, A., J.N. Moum, J.M. Klymak, M.D. Levine, T. Boyd, P.M. Kosro, 2007. "Organization of stratification, turbulence, and veering in bottom Ekman layers." J. Geophys. Res. 112: C05S90, doi:10.1029/2004JC00241.

Kosro, P.M., W.T. Peterson, B.M. Hickey, R.K. Shearman and S.D. Pierce, 2006. "The physical vs. the biological spring transition: 2005", Geophysical Research Letters, 33, L22S03, doi:10.1029/2006GL027027.

Huyer, A., J.H. Fleischbein, J. Keister, P.M. Kosro, N. Perlin, R.L. Smith, and P.A. Wheeler, 2005. "Two coastal upwelling domains in the northern California Current System", Journal of Marine Research, 63, 901-929.

Perlin, A., J. N. Moum, J. M. Klymak, M. D. Levine, T. Boyd, and P. M. Kosro (2005), A modified law-of-the-wall applied to oceanic bottom boundary layers, J. Geophys. Res., 110, C10S10, doi:10.1029/2004JC002310.

Kurapov, A. L., J. S. Allen, G. D. Egbert, R. N. Miller, P.M. Kosro, M. D. Levine, T. Boyd, and J. A. Barth (2005), Assimilation of moored velocity data in a model of coastal wind-driven circulation off Oregon: Multivariate capabilities, J. Geophys. Res., 110, C10S08, doi:10.1029/2004JC002493

Bane, J. M., M. D. Levine, R. M. Samelson, S. M. Haines, M. F. Meaux, N. Perlin, P. M. Kosro, and T. Boyd, 2005. "Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling season". J. Geophys. Res., 110, C10S02, doi:10.1029/2004JC002653.

Kosro, P.M., 2005. "On the spatial structure of coastal circulation off Newport, Oregon, during spring and summer 2001, in a region of varying shelf width", J. Geophys. Res., 110, C10S06, doi:10.1029/2004JC002769.

Kurapov, A.L., J.S. Allen, G.D. Egbert, R.N. Miller, P.M. Kosro, M. Levine, T. Boyd, 2005. "Distant effect of assimilation of moored currents into a model of coastal wind-driven circulation off Oregon". J. Geophys. Res., 110, C02022, doi:10.1029/2003JC002195.

Swartzman, G., B. Hickey, P.M. Kosro, and C. Wilson, 2005. "Poleward and equatorward currents in the Pacific Eastern Boundary Current in summer 1995 and 1998 and their relationship to the distribution of euphausiids". Deep-Sea Research II, 52(1-2): 73-88, doi:10.1016/j.dsr2.2004.09.028.

Moum, J.N., A. Perlin, J.M. Klymak, M.D. Levine, T. Boyd, P.M. Kosro, 2004. "Convectively-driven mixing in the bottom boundary layer", J. Phys. Oceanography, 34(10): 2189-2202.

Paduan, J.D., P.M. Kosro and S.M. Glenn, 2004. "A national coastal ocean high frequency radar system for the United States". Marine Technology Society Journal 38(2): 76-82.

Kurapov, A.L., G.D. Egbert, J.S. Allen, R.N. Miller, S.Y. Erofeeva, and P.M. Kosro, 2003. M2 internal tide off Oregon: inferences from data assimilation. J. Physical Oceanography, 33(8), 1733-1757.

Erofeeva, L., G. Egbert and P.M. Kosro, 2003. "Tidal currents on the central Oregon shelf: models, data and assimilation", Journal of Geophysical Research, 108(C5): 10.1029/2002JC001615.

Kosro, P.M., 2003. "Enhanced southward flow over the Oregon shelf in 2002: a conduit for subarctic water", Geophysical Research Letters, 30(15), 10.1029/2003GL017436.

Schwing, F.B., S.J. Bograd, C.A. Collins, G. Gaxiola-Castro, J. Garcia, R. Goeericke, J. Gomez-Valdez, A. Huyer, K.D. Hyrenbach, P.M. Kosro, B.E. Lavaniegos, R.J. Lynn, A.W. Mantyla, M.D. Ohman, W.T. Peterson, R.L. Smith, W.J. Sydeman, E. Venrick, P.A. Wheeler, "The State of the California Current, 2001-2002: will the CCS keep its cool, or is El Nino looming" CalCOFI Rep., 43: 31-68, 2002.

Batchelder, H.P., J.A. Barth, P.M. Kosro, P.T. Strub, R.D. Brodeur, et al., 2002. The GLOBEC Northeast Pacific California Current System Program. Oceanography, 15(2): 36-47.

Chase, Z., A. van Geen, P.M. Kosro, J. Marra, P.A. Wheeler, 2002. "Iron, nutrient, and phytoplankton distributions in Oregon coastal waters". Journal of Geophysical Research, 107(C10). 10.1029/2001JC000987.

Oke, P., J.S. Allen, R.N. Miller, G.D. Egbert, P.M. Kosro, 2002. "Assimilation of surface velocity data into primitive equation coastal ocean models". Journal of Geophysical Research, 107(C9), 10.1029/2000JC000511.

Kosro, P.M., 2002. "A poleward jet and an equatorward undercurrent observed off Oregon and northern California during the 1997-98 El Ni¤o", Progress in Oceanography, 54(1-4): 343-360.

Oke, Peter R., J. S. Allen, R. N. Miller, G. D. Egbert, J. A. Austin, J. A. Barth, T. J. Boyd, P. M. Kosro, M. D. Levine, 2002. "A Modeling Study of the Three-Dimensional Continental Shelf Circulation off Oregon. Part I: Model-Data Comparisons". Journal of Physical Oceanography: Vol. 32, No. 5, pp. 1360-1382.

Rehder, G., R.W. Collier, K. Heesschen, P.M. Kosro, J.A. Barth, and E. Seuss, 2002. "Enhanced marine CH4 emissions to the atmosphere off Oregon caused by coastal upwelling". Global Biogeochemical Cycles, 16(3), 10.1029/2000GB001391.

Barth, J.A., T.J. Cowles, P.M. Kosro, R.K. Shearman, A. Huyer and R.L. Smith, 2002. "Injection of carbon from the Shelf to Offshore Beneath the Euphotic Zone from the California Current", Journal of Geophysical Research, 107(C6), 10.1029/2001JC000956, 2002.

Samelson, R., P. Barbour, J. Barth, S. Bielli, T. Boyd, D. Chelton, P.M. Kosro, M. Levine, E. Skyllingstad, J. Wilczak, 2002. "Wind stress forcing of the Oregon coastal ocean during the 1999 Oregon upwelling season", J. Geophys. Res., 107 (C5), 10.1029/2001JC000900.

Stanton, B., D. Roemmich, and P.M. Kosro. 2001. "A shallow zonal jet south of Fiji", J. Physical Oceanography, 31(10): 3127-3130.

Chereskin, T.K., M.Y. Morris, P.P. Niiler, P.M. Kosro, R.L. Smith, S.R. Ramp, C.A. Collins, and D.L. Musgrave, 2000. "Spatial and temporal characteristics of the mesoscale circulation of the California Current from eddy-resolving moored measurements", J. Geophys. Res., 105(C1), 1245-1269.

Pierce, S.D., R.L. Smith, P.M. Kosro, J.A. Barth, C.D. Wilson, 2000. "Continuity of the poleward undercurrent along the eastern boundary of the mid-latitude North Pacific". Deep-Sea Research II, 47, 811-829.

Shearman, R. Kipp, J.A. Barth and P.M. Kosro, 1999. "Diagnosis of three-dimensional circulation associated with mesoscale motion in the California Current", Journal of Physical Oceanography , 29(4): 651-670.

Barth, J.A., D. Bogucki, S.D. Pierce and P.M. Kosro, 1998. "Secondary circulation associated with a shelfbreak front", Geophysical Research Letters, 25(15): 2761-2764.

Huyer, A., J. Barth, P.M. Kosro, R.K. Shearman, R.L. Smith, 1998. "Upper-ocean water mass characteristic of the California current, Summer 1993", Deep-Sea Research II, 45 , 1411-1442.

Kosro, P.M., J.A. Barth and P.T. Strub, 1997. "The coastal jet: Observations of surface currents along the Oregon Continental Shelf from HF radar", Oceanography, 10(2) , 53-56.

Huyer, A., P.M. Kosro, R. Lukas, P. Hacker, 1997. "Upper-Ocean Thermohaline Fields near 2 S, 156 E during TOGA-COARE, November 1992 to February 1993". J. Geophysical Research, 102(C6) , 12749-12784.

Wilson, T.C., J.A. Barth, S.D. Pierce, P.M. Kosro and B.W. Waldorf, 1996. "A Lagrangian drifter with inexpensive wide area differential GPS positioning". Oceans '96 MTS/IEEE Conference Proceedings, vol 2, pp. 851-856.

Trasvina, A., E.D. Barton, J. Brown, H.S. Velez, P.M. Kosro and R.L. Smith, 1995. "Offshore wind forcing in the Gulf of Tehuantepec, Mexico: the asymmetric circulation". Journal of Geophysical Research, 100(C10) , 20,649-20,663.

Washburn, L., M.S. Swenson, J.L. Largier, P.M. Kosro and S.R. Ramp, 1993. "Cross-shelf sediment transport by an anticyclonic eddy off northern California". Science, 261 , 1560-1564.

Barton, E.D., M.L. Argote, J. Brown, P.M. Kosro, M. Lavin, J. M. Robles, R.L. Smith, A. Trasvina, H.S. Velez, 1993. "Supersquirt: dynamics of the Gulf of Tehuantepec, Mexico". Oceanography, 6(1) , 23-30.

Brown, J., E.D. Barton, A. Trasvina, H.S. Velez, P.M. Kosro and R.L. Smith, 1992. "Estimation of surface winds from upward looking Acoustic Doppler Current Profilers". Journal of Geophysical Reseach, 97(C11), 17,925-17,930.

Washburn, L., D.C. Kadko, B.H. Jones, T. Hayward, P.M. Kosro, T. Stanton, S. Ramp, T. Cowles, 1991. "Water mass subduction and the transport of phytoplankton in a coastal upwelling system". Journal of Geophysical Research, 96(C8) , 14927-14945.

Walstad, L.J., J.S. Allen, P.M. Kosro and A. Huyer, 1991. "Dynamics of the coastal transition zone through data assimilation studies". J. Geophys. Res., 96(C8) , 14959-14977.

Chavez, F.P., R.T. Barber, P.M. Kosro, A. Huyer, T.P. Stanton, B.R. de Mendiola, 1991. "Horizontal transport of nutrients in the coastal transition zone off northern California: effects on primary production, phytoplankton biomass and species composition". Journal of Geophysical Research, 96(C8) , 14833-14848.

Strub, P.T., P.M. Kosro, A. Huyer, et al., 1991. "The nature of the cold filaments in the California Current system". Journal of Geophysical Research, 96(C8) , 14,743-14,768

Huyer, A., P.M. Kosro, J. Fleischbein, S.R. Ramp, T. Stanton, L. Washburn, F.P. Chavez, T.J. Cowles, S.D. Pierce, R.L. Smith, 1991. "Currents and water masses of the Coastal Transition Zone off northern California, June to August 1988". Journal of Geophysical Research, 96(C8) , 14,809-14831.

Kosro, P.M., A. Huyer, S.R. Ramp, R.L. Smith, F.P. Chavez, T.J. Cowles, M.R. Abbott, P.T. Strub, R.T. Barber, P. Jessen, L.F. Small, 1991. "The structure of the transition zone between coastal waters and the open ocean off northern California, winter and spring, 1987". Journal of Geophysical Research, 96(C8) : 14,707-14730.

Hood, R.R., M. R. Abbott, A. Huyer and P. M. Kosro, 1990. "Surface patterns in temperature, flow, phytoplankton biomass, and species composition in the coastal transition zone off northern California". Journal of Geophysical Research, 95(C10) : 18,081-18094.

Huyer, A., P.M. Kosro, S. Lentz and R.C. Beardsley, 1989. "Poleward flow in the California Current system", in Poleward Flows on Eastern Ocean Boundaries, ed. S.Neshyba et al., pp. 142-156, Springer-Verlag, New York.

Chelton, D.B., A. Bratkovich, R.L. Bernstein and P.M. Kosro, 1988. "Poleward flow off central California during the spring and summer of 1981 and 1984". Journal of Geophysical Research, 93(9) : 10,604-10,620.

Coastal Transition Zone Group, 1988. "The Coastal Transition Zone Program", EOS, Trans., Am. Geophys. Union, 69(27) : 698ff.  doi:10.1029/88EO01006.

Chelton, D.B., A. Bratkovich, R.L. Bernstein and P.M. Kosro, 1987. "The Central California Coastal Circulation Study", EOS, Trans. Amer. Geophys. Union, 68(1) : 1ff, doi:10.1029/EO068i001p00001.

Kosro, P.M., 1987. "Structure of the coastal current field off northern California during the Coastal Ocean Dynamics Experiment". Journal of Geophysical Research, 92 : 1637-1654.

Huyer, A. and P. M. Kosro, 1987. "Mesoscale surveys over the shelf and upper slope near Point Arena, California". Journal of Geophysical Research, 92 : 1655-1681.

Kosro, P.M., and A. Huyer, 1986. "CTD and velocity surveys of seaward jets off northern California, July 1981 and 1982". Journal of Geophysical Research, 91 : 7680-7690.

Kosro, P.M., 1985. "Shipboard acoustic current profiling during the Coastal Ocean Dynamics Experiment", Ph.D. dissertation, U.C. San Diego. SIO Ref 85-8, May 1985 (NTIS ADA1570407XSP), 120p. NB: 12MB.