Dr. Morison’s main focus centers on the study of Arctic Ocean change. He has been the principal investigator for the NSF-supported North Pole Environmental Observatory since 2000. He is involved with using remote sensing, principally NASA’s Gravity Recovery and Climate Experiment (GRACE), to track changes in Arctic Ocean Circulation and freshwater distribution. He is also continuing a long-term interest in small-scale processes by studying interplay among Arctic change, internal waves and mixing.
We this project will compare in situ measurements of ocean bottom pressure and hydrography with GRACE estimates of time-varying ocean bottom pressure. Arctic Bottom Pressure Recorders have been deployed and extensive hydrographic measurements have been made under other projects. Comparisons with some of these measurements suggest that GRACE can provide sorely needed large-scale, continuous information on the changing Arctic Ocean circulation. Our North Pole in situ measurements are particularly useful for GRACE validation because the GRACE footprint passes over the North Pole more frequently than any other ocean location on earth, making comparisons there robust. GRACE appears to provide our…read more »
This project is motivated by recent findings showing the sensitivity of Arctic Ocean circulation to background deep-ocean diapycnal mixing. Mixing in the stratified ocean is related to internal wave energy, which tends to be low under the Arctic Ocean ice cover. Consequently, as ice cover declines background mixing may increase and, among other changes, bring more Atlantic Water heat to the surface to melt ice, a potentially important positive climate feedback. To understand the influence of background mixing and to improve models of the changing Arctic Ocean, we are taking advantage of the latest analysis techniques to examine existing internal…read more »
Morison, J., R. Kwok, C. Peralta-Ferriz, M. Alkire, I. Rigor, R. Andersen, and M. Steele, Changing Arctic Ocean Freshwater Pathways Measured With ICESat and GRACE, Nature, 481, 66-70, DOI: 10.1038/nature10705, 2012
Morison, J., R. Kwok, C. Peralta-Ferriz, M. Alkire, I. Rigor, R. Andersen, and M. Steele, Changing Arctic Ocean Freshwater Pathways Measured With ICESat and GRACE, Nature, Vol. 481, doi:10.1038/nature10705, 2012.
Morison, J., R. Kwok, C. Peralta-Ferriz, M. Alkire, I. Rigor, R. Andersen, M. Steele (2011), Changes in Arctic Ocean circulation and freshwater measure with ICESat altimetry, GRACE gravimetry, and in situ observations, Nature, 2011.
Morison, J., R. Kwok, C. Peralta-Ferriz, M. Alkire, I. Rigor, R. Andersen, M. Steele (2011), Changes in Arctic Ocean circulation and freshwater measure with ICESat altimetry, GRACE gravimetry, and in situ observations, Nature, accepted.
Alkire M., K. Falkner, J. Morison, R. Collier, C. Guay, R. Desiderio, I. Rigor, M. McPhee, “Sensor-based profiles of the NO parameter in the central Arctic and southern Canada Basin: New insights regarding the cold halocline”, Deep-Sea Research I, doi:10.1016/j.dsr.2010.07.011, 2010.
Peralta-Ferriz, C. and J. Morison, “Understanding the annual cycle of the Arctic Ocean bottom pressure”, Geophys. Res. Lett., 37, L10603, doi:10.1029/2010GL042827, 2010.
Proshutinsky, A., M.-L. Timmermans, I. Ashik, A. Beszczynska-Moeller, E. Carmack, I. Frolov, R. Krishfield, F. McLaughlin, J. Morison, I. Polyakov, K. Shimada, V. Sokolov, M. Steele, J. Toole, and R. Woodgate, The Arctic, c. Ocean [in “State of the Climate in 2009”], Bull. Amer. Meteor. Soc., 91 (6), S85-87, 2010.
Sirevaag, A., M.G. McPhee, J.H. Morison, W.J. Shaw, and T.P. Stanton, ‘Wintertime mixed layer measurements at Maud Rise, Weddell Sea‘, J. Geophys. Res., 115, doi:10.1029/2008JC005141, 2010.
Kwok, R., S. Farrell, R. Forsberg, K. Giles, S. Laxon, D. McAdoo, J. Morison, L. Padman, C. Peralta-Ferriz, A. Proshutinsky, and M. Steele,’ Combining satellite altimetry, time-variable gravity, and bottom pressure observations to understand the Arctic Ocean: A transformative opportunity’, Proceedings of the OceanObs09: Sustained Ocean Observations and Information for Society Conference, Venice, Italy, 21-25 September 2009, Hall, J., Harrison D.E. and Stammer, D., Eds., 2, ESA Publication WPP-30, 2010.
Alkire, M.B., K.K. Falkner, J. Morison, R.W. Collier, C.K.Guay, R.A. Desiderio, I.G. Rigor, M. McPhee (2010). Sensor-based profiles of the NO parameter in the central Arctic and southern Canada Basin: new insights regarding the cold halocline, Deep-Sea Research I 57: 1432-1443, 2010.
deSteur, L., M. Steele, J. Morison, I. G. Rigor, C. M. Lee, and E. Hansen, Recent changes in Arctic Ocean freshwater distribution, J. Climate, in review, 2010.
- McPhee, M., A. Proshutinsky, J. Morison, M. Steele, and M. Alkire, "Rapid change in freshwater content of the Arctic Ocean", Geophys. Res. Lett., 36, L10602, doi:10.1029/2009GL037525, 2009.
Shaw, W.J., T.P. Stanton, M.G. McPhee, J.H. Morison, and D.G. Martinson,’ Role of the upper ocean in the energy budget of Arctic sea ice during SHEBA’, J. Geophys. Res., 114, doi:10.1029/2008JC004991, 2009.
Zhang J., M. Steele, R. Lindsay, A. Schweiger, J. Morison, “Ensemble 1-Year predictions of Arctic sea ice for the spring and summer of 2008″, Journal of Polar Science,submitted 2008.
Alkire, M. B., K. K. Falkner, I. Rigor, M. Steele, and J. H. Morison,’ The return of Pacific waters to the upper layers of the central Arctic Ocean’, Deep-Sea Res., Part I, 54, 1509-1529, 2007.
Morison, J., J. Wahr, R. Kwok, and C. Peralta-Ferriz,’ Recent trends in Arctic Ocean mass distribution revealed by GRACE’, Geophys. Res. Lett., 34, L07602, doi:10.1029/2006GL029016, 2007.
Richter-Menge, J., J. Overland, A. Proshutinsky, V. Romanovsky, L. Bengtsson, L. Brigham, M. Dyurgerov, J.C. Gascard, S. Gerland, R. Graversen, C. Haas, M. Karcher, P. Kuhry, J. Maslanik, H. Melling, W. Maslowski, J. Morison, D. Perovich, R. Przybylak, V. Rachold, I.G. Rigor, A. Shiklomanov, J. Stroeve, D. Walker, and J. Walsh,’ State of the Arctic‘, NOAA OAR Special Report, NOAA/OAR/PMEL, Seattle, WA, 36 pp, 2006.
Morison, J., M. Steele, T. Kikuchi, K. Falkner, and W. Smethie,’ The relaxation of Central Arctic Ocean hydrography toward pre-1990s climatology‘, Geophys. Res. Lett.,33, L17604, doi: 10.1029/2006GL026826, 2006.
Polyakov, I.V., Beszczynska, A., Carmack, E.C., Dmitrenko, I.A., Fahrbach, E., Frolov, I.E., Gerdes, R., Hansen, E., Holfort, J., Ivanov, V.V., Johnson, M.A., Karcher, M., Kauker, F., Morison, J., Orvik, K.A., Schauer, U., Simmons, H.L., Skagseth, Ø., Sokolov, V.T., Steele, M., Timokhov, L.A., Walsh, D., Walsh, J.E.,’ One more step toward a warmer Arctic’, Geophys. Res. Lett., 32, L17605, 10.1029/2005GL023740, 2005.
Falkner, K., M. Steele, R. Woodgate, J. Swift, K. Aagaard, and J. Morison, “Dissolved oxygen extrema in the Arctic Ocean halocline from the North Pole to the Lincoln Sea“, Deep-Sea Res., Volume 52, Issue 7, Pages 1138-1154, 2005.
Morison, J. H., K. Aagaard, K. K. Falkner, K, Hatakeyama, R. Moritz, J. E. Overland, D. Perovich, K. Shimada, M. Steele, T. Takizawa, R. Woodgate, Early results from the North Pole Environmental Observatory, EOS Trans., 83(33), pp. 357, 360-361, 2002.
Morison, J. H., K. Aagaard, and M. Steele, Recent environmental changes in the Arctic: A review, Arctic, 53, 359-371, 2000.
Perovich, D., E. L. Andreas, J. A. Curry, H. Eiken, C. W. Fairall, T. C. Grenfell, P. S. Guest, J. Intrieri, D. Kadko, R. W. Lindsay, M. G. McPhee, J. Morison, R. E. Moritz, C. A. Paulson, W. S. Pegau, P. O. G. Persson, R. Pinkel, J. A. Richter-Menge, T. Stanton, H. Stern, M. Sturm, W. B. Tucker III, and T. Uttal. “Year on ice gives climate insights.” EOS, Trans. Amer. Geophys. Union, 80 (41), 481-486, 1999.
Morison, J. H., M. Steele, and R. Andersen, Hydrography of the upper Arctic Ocean measured from the nuclear submarine USS Pargo, Deep Sea Res. I, 45, 15-38, 1998.
Steele, M., J. H. Morison, and T. Curtin, Halocline water formation in the Barents Sea, J. Geophys. Res., 100, 881-894, 1995.
Steele, M. and J. Morison, Hydrography and vertical fluxes of heat and salt northeast of Svalbard in autumn, J. Geophys. Res., 98, 10,013-10,024, 1993.
Steele, M. and J. H. Morison, Obtaining smooth hydrographic profiles from a buoy deployed in sea ice, J. Atmos. and Ocean. Technol., 9, 812-826, 1992.
Steele, M., J. H. Morison, and N. Untersteiner, The partition of air-ice-ocean momentum exchange as a function of ice concentration, floe size, and draft, J. Geophys. Res., 94, 12,739-12,750, 1989.