Index Catalog // ScholarsArchive@OSU

Creator:: Chelton, Dudley B., Schlax, Michael G., Witter, Donna L., and Richman, James G.
Abstract:: The variability of sea level and surface geostrophic currents in the Southern Ocean is investigated from the first 26 months of unclassified Geosat altimeter data (November 1986 to December 1988). Because of problems unique to Geosat, it has been necessary to develop new techniques for analyzing the height data. These...
Resource Type:: Article

Creator:: Moum, James N.
Abstract:: Estimates of heat flux from direct measurements of vertical velocity-temperature fluctuation correlations have been obtained from vertical profiles through turbulent patches in the main thermocline. These have been compared to more indirect flux estimates derived from dissipation rates of turbulent kinetic energy and temperature variance. Because record lengths are limited...
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Full Text:: d ß •g/• F < 0 #pts geo.mn median mode i 0.15 0.1 •:::::::. ::i;•4

Creator:: Avicola, G. S., Moum, James N., Perlin, A., and Levine, Murray D.
Abstract:: The upwelling-driven coastal jet off Oregon is in geostrophic balance to first order. The accompanying thermal wind shear is stable to shear instability. Yet enhanced turbulence is observed in the upwelling jet, typically as long, thin patches with horizontal to vertical aspect ratios of 10² to 10³ (median value ~300)....
Resource Type:: Article
Full Text:: internal gravity waves and a coastal upwelling jet G. S. Avicola,1,2 J. N. Moum,1 A. Perlin,1 and M. D

Creator:: McManus, James, Collier, Robert W., and Dymond, Jack
Abstract:: Subsurface hydrothermal activity dominates the heat and salt budgets of the deep water column in Crater Lake, Oregon. From a time series of conductivity-temperature-depth data and data from a thermistor chain mooring, we estimate that the net hydrothermal heat flow is ~1 W m⁻² and the corresponding salt flux is...
Resource Type:: Article
Full Text:: Lake, Oregon JAMES MCMANUS, 1 ROBERT W. COLLIER, AND JACK DYMOND College of Oceanography, Oregon

Creator:: Golombek, M. P., Anderson, R. C., Barnes, Jeffrey R., Bell III, J. R., Bridges, N. T., Britt, D. T., Brückner, J., Cook, R. A., Crisp, J. A., Economou, T., Folkner, W. M., Greely, R., Haberle, R. M., Hargraves, R. B., Harris, J. A., Haldemann, A. F. C., Herkenhoff, K. E., Hviid, S. F., Jaumann, R., Johnson, J. R., Kallemeyn, P. H., Keller, H. U., Kirk, R. L., Knudsen, J. M., Larsen, S., Lemmon, M. T., Madsen, M. B., Magalhães, J. A., Maki, J. N., Malin, M. C., Manning, R. M., Matijevic, J., McSween, H. Y., Moore, H. J., Murchie, S. L., Murphy, J. R., Parker, T. J., Reider, R., Rivellini, T. P., Schofield, J. T., Seiff, A., Singer, R. B., Smith, P. H., Soderblom, L. A., Spencer, D. A., Stoker, C. R., Sullivan, R., Thomas, N., Thurman, S. W., Tomasko, M. G., Vaughn, R. M., Wänke, H., and Wilson, G. R.
Abstract:: Mars Pathfinder successfully landed at Ares Vallis on July 4, 1997, deployed and navigated a small rover about l00 m clockwise around the lander, and collected data from three science instruments and ten technology experiments. The mission operated for three months and returned 2.3 Gbits of data, including over 16,500...
Resource Type:: Article

Creator:: Magill, James, Cox, Allan, and Duncan, Robert A.
Abstract:: Paleomagnetic directions from the Eocene Tillamook Volcanic Series of the Oregon Coast Range point 460 clockwise from the expected Eocene field direction. Potassium argon dating of six dikes and flows from this formation yields a mean age of 44.3 ± 0.6 m.y. These results establish that the Oregon coastal block...
Resource Type:: Article
Full Text:: Range JAMES MAGILL AND ALLAN Cox Department of Geophysics, Stanford University, Stanford, California

Creator:: Dewey, Richard K. and Moum, James N.
Abstract:: Microstructure observations near upwelled fronts indicate considerable variation in the structure of vertical mixing across the frontal region. Observations of cool filaments off northern California indicate that within the cool (dense) core of filaments the raised pycnocline inhibits the penetration to middepths of surface-generated mixing. The microstructure profiles are used...
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Full Text:: Mixing RICHARD K. DEWEY AND JAMES N. MOUM College of Oceanography, Oregon State University, Corvallis

Creator:: Pringle, James M. and Dever, Edward P.
Abstract:: In north and central California, equatorward winds drive equatorward flows and the upwelling of cold dense water over the shelf during the midspring and summer upwelling season. When the winds temporarily weaken, the upwelling flows between Point Reyes and Point Arena ‘‘relax,’’ becoming strongly poleward over the shelf. Analytical and...
Resource Type:: Article
Full Text:: between Monterey Bay and Point Arena: Local-, regional-, and gyre-scale controls James M. Pringle1 and

Creator:: Egbert, Gary D., Bennett, Andrew F., and Foreman, Michael G. G.
Abstract:: Altimetric data from the TOPEX/POSEIDON mission will be used for studies of global ocean circulation and marine geophysics. However, it is first necessary to remove the ocean tides, which are aliased in the raw data. The tides are constrained by two distinct types of information: the hydrodynamic equations which the...
Resource Type:: Article
Full Text:: conventional tide gauge. The levels h and h' are related via [e.g., Ray and Sanchez, 1989] h'= G r* h + ht

Creator:: Levine, Murray D., Paulson, Clayton A., and Morison, James H.
Abstract:: Internal gravity waves measured under the Arctic pack ice were strikingly different from measurements at lower latitudes. The total wave energy, integrated over the internal wave frequency band, was lower by a factor of 0.03-0.07, and the spectral slope at high frequency was nearly -1 in contrast to the -2...
Resource Type:: Article
Full Text:: College of Oceanography, Oregon State University, Corvallis JAMES H. MORISON Polar Science Center

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