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  • Small-Scale Sea Surface Temperature Structure

    Creator:
    Simpson, James J. and Paulson, Clayton A.
    Abstract:
    Observations of sea surface temperature and wave height were made from a large, manned spar buoy (R/P FLIP) ~100 km off the coast of Baja California. Surface temperature was measured with a radiation thermometer which viewed a disc on the surface 12 cm in diameter. The instrument responded to frequencies...
    Resource Type:
    Article

  • Irradiance Measurements in the Upper Ocean

    Creator:
    Paulson, Clayton A. and Simpson, James J.
    Abstract:
    Observations were made of downward solar radiation as a function of depth during an experiment in the North Pacific (35°N, 155°W). The irradiance meter employed was sensitive to solar radiation of wavelength 400–1000 nm arriving from above at a horizontal surface. Because of selective absorption of the short and long...
    Resource Type:
    Article

  • A numerical study of melt ponds

    Creator:
    Skyllingstad, Eric D. and Paulson, Clayton A.
    Abstract:
    High-resolution turbulence simulations are used to examine the importance of melt pond geometry in setting pond growth rates and albedo. Modeling the circulation of water in melt ponds using large-eddy simulation shows that both convective and windforced conditions generate well-mixed ponds, suggesting that stratification is not a significant factor in...
    Resource Type:
    Article
    Full Text:
    . Skyllingstad1 and Clayton A. Paulson1 Received 24 May 2006; revised 4 April 2007; accepted 26 April 2007

  • Towed thermister chain observations of fronts in the subtropical North Pacific

    Creator:
    Samelson, Roger M. and Paulson, Clayton A.
    Abstract:
    A thermistor chain was towed 1400 km through the eastern North Pacific subtropical frontal zone in January 1980. The observations resolve surface layer temperature features with horizontal wavelengths of 0.2-200 km and vertical scales of 10-70 m. The dominant features, which have horizontal wavelengths of 10-100 km, amplitudes of 0.2°-1.0°C,...
    Resource Type:
    Article
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    AND CLAYTON A. PAULSON College of Oceanography, Oregon State University, Corvallis A thermistor

  • Mixed layer observations during the NORPAX POLE experiment : a data report

    Creator:
    Simpson, James J. and Paulson, Clayton A.
    Abstract:
    This data report contains observations made from R/P FLIP as part of the first process-oriented NORPAX (North Pacific Experiment) experiment. The experiment was named POLE to indicate that the horizontal extent of sampling was small compared to the largest scale investigated in NORPAX. The part of the experiment reported here...
    Resource Type:
    Technical Report
    Full Text:
    Experiment: A data report by James J. Simpson and Clayton A. Paulson OREGON STATE UNIVERSITY Office of

  • Internal Waves in the Arctic Ocean: Comparison with Lower-Latitude Observations

    Creator:
    Levine, Murray D., Paulson, Clayton A., and Morison, James H.
    Abstract:
    A thermistor chain was moored below the pack ice from 50–150 m in the Arctic Ocean for five days in 1981. Oscillations in temperature are attributed to the vertical dispalcement of internal waves. The spectral shape of isotherm dispalcement is consistent with the Garrett-Munk model and other internal wave observations,...
    Resource Type:
    Article

  • Simulation of melt pond evolution on level ice

    Creator:
    Skyllingstad, Eric D., Paulson, Clayton A., and Perovich, Donald K.
    Abstract:
    A melt pond model is presented that predicts pond size and depth changes, given an initial ice thickness field and representative surface fluxes. The model is based on the assumption that as sea ice melts, fresh water builds up in the ice pore space and eventually saturates the ice. Under...
    Resource Type:
    Article
    Full Text:
    Eric D. Skyllingstad,1 Clayton A. Paulson,1 and Donald K. Perovich2 Received 6 March 2009; revised 31

  • Simulation of turbulent exchange processes in summertime leads

    Creator:
    Skyllingstad, Eric D., Paulson, Clayton A., and Pegau, W. Scott
    Abstract:
    Ice-ocean heat exchange in polar leads was examined using a large-eddy simulation model coupled to a slab ice model. Simulations were performed using an idealized square domain for a range of lead sizes, surface wind stress (0.05–0.1 N/m²), and lead temperature/salinity profiles. Particular emphasis was placed on understanding the role...
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    Article
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    summertime leads Eric D. Skyllingstad and Clayton A. Paulson College of Oceanic and Atmospheric Sciences

  • Mixing in the equatorial surface layer and thermocline

    Creator:
    Moum, James N., Caldwell, Douglas R., and Paulson, Clayton A.
    Abstract:
    Twelve days of microstructure measurements at the equator (140°W) in November 1984 showed a surprisingly strong effect of both daily cycle of solar heating and wind on mixing in the upper ocean. Because of limited variations in atmospheric forcing and currents during the experiment, processes in the daily mixing cycle...
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    Article
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    along ship track (m) 100 de pt h (m ) S P E C I A L I S S U E O N C O A S tA L O C E A N P r O

  • Observations of internal gravity waves under the Arctic pack ice

    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...
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    Article
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    of Internal Gravity Waves Under the Arctic Pack Ice MURRAY D. LEVINE AND CLAYTON A. PAULSON