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The Influence of Swell on the Atmospheric Boundary Layer under Nonneutral Conditions
Filetype[PDF-1.32 MB]


Details:
  • Personal Author:
  • Description:
    The anomalous phenomena induced by the prevailing swell at low wind speeds prevent a complete understanding of air-sea interaction processes. Many studies have considered this complex problem, but most have focused on near-neutral conditions. In this study, the influence of the swell on the atmospheric boundary under nonneutral conditions was addressed by extending the turbulent closure models of Makin and Kudryavtsev and the Monin-Obukhov similarity theory (MOST; Monin and Yaglom) to the existence of swell and nonneutral conditions. It was shown that wind profiles derived from these models were consistent with each other and both departed from the traditional MOST. At low wind speeds, a supergeostrophic jet appeared on the upper edge of the wave boundary layer, which was also reported in earlier studies. Under nonneutral conditions, the influence of buoyancy was significant. The slope of the wind profile increased under stable conditions and became smoother under unstable conditions. Considering the effects of buoyancy and swell, the wind stress derived from the model agreed quantitatively with the observations.
  • DOI:
    http://dx.doi.org/10.1175/jpo-d-17-0195.1
  • Document Type:
    Journal Article
  • Collection(s):
    Office of Oceanic and Atmospheric Research (OAR)
  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
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      Journal of Geophysical Research-Oceans, 123(5), 3259-3285.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
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      The Taylor Energy Site is located in the vicinity of the Mississippi Delta region over the Northern Gulf of Mexico (NGoM). Surface oil patches have been persistently observed within this site since 2004, when an oil rig was destroyed by Hurricane Iva...
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      Lee, S. K.; Lopez, H.; Chung, E. S.; DiNezio, P.; Yeh, S. W.; Wittenberg, A. T.;
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      2018
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      Geophysical Research Letters, 45(2), 907-915.
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      The failed influence of the 2015-2016 El Nino on California rainfall has renewed interest in the relationship between El Nino and U.S. rainfall variability. Here we perform statistical data analyses and simple model experiments to show that sufficien...
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    4. A Study of the HWRF Analysis and Forecast Impact of Realistically Simulated CYGNSS Observations Assimilated as Scalar Wind Speeds and as VAM Wind Vectors
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      Annane, B.; McNoldy, B.; Leidner, S. M.; Hoffman, R.; Atlas, R.; Majumdar, S. J.;
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      2018
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      Monthly Weather Review, 146(7), 2221-2236.
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      Beron-Vera, F. J.; Olascoaga, M. J.; Wang, Y.; Trinanes, J.; Perez-Brunius, P.;
      Published Date:
      2018
      Source:
      Scientific Reports, 8, 11275.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      Ocean flows are routinely inferred from low-resolution satellite altimetry measurements of sea surface height assuming a geostrophic balance. Recent nonlinear dynamical systems techniques have revealed that surface currents derived from altimetry can...
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    6. The Effect of Thinning and Superobservations in a Simple One-Dimensional Data Analysis with Mischaracterized Error
      Personal Author:
      Hoffman, R. N.
      Published Date:
      2018
      Source:
      Monthly Weather Review, 146(4), 1181-1195.
      Series:
      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
      Description:
      A one-dimensional (1D) analysis problem is defined and analyzed to explore the interaction of observation thinning or superobservation with observation errors that are correlated or systematic. The general formulation might be applied to a 1D analysi...
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    7. Azimuthal Distribution of Deep Convection, Environmental Factors, and Tropical Cyclone Rapid Intensification: A Perspective from HWRF Ensemble Forecasts of Hurricane Edouard (2014)
      Personal Author:
      Leighton, H.; Gopalakrishnan, S.; Zhang, J. A.; Rogers, R. F.; Zhang, Z.; Tallapragada, V.;
      Published Date:
      2018
      Source:
      Journal of the Atmospheric Sciences, 75(1), 275-295.
      Description:
      Forecasts from the operational Hurricane Weather Research and Forecasting (HWRF)-based ensemble prediction system for Hurricane Edouard (2014) are analyzed to study the differences in both the tropical cyclone inner-core structure and large-scale env...
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    8. Tropical Cyclone Boundary Layer Rolls in Synthetic Aperture Radar Imagery
      Personal Author:
      Huang, L. Q.; Li, X. F.; Liu, B.; Zhang, J. A.; Shen, D. L.; Zhang, Z. H.; Yu, W. X.;
      Published Date:
      2018
      Source:
      Journal of Geophysical Research-Oceans, 123(4), 2981-2996.
      Description:
      Marine atmospheric boundary layer (MABL) roll plays an important role in the turbulent exchange of momentum, sensible heat, and moisture throughout MABL of tropical cyclone (TC). Hence, rolls are believed to be closely related to TC's development, in...
      File Type:
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    9. Composite Impact of Global Hawk Unmanned Aircraft Dropwindsondes on Tropical Cyclone Analyses and Forecasts
      Personal Author:
      Christophersen, H.; Aksoy, A.; Dunion, J.; Aberson, S.;
      Published Date:
      2018
      Source:
      Monthly Weather Review, 146(7), 2297-2314.
      Description:
      The impacts of Global Hawk (GH) dropwindsondes on tropical cyclone (TC) analyses and forecasts are examined over a composite sample of missions flown during the NASA Hurricane and Severe Storm Sentinel (HS3) and the NOAA Sensing Hazards with Operatio...
      File Type:
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    10. Meridional Overturning Circulation Transport Variability at 34.5 degrees S During 2009-2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries
      Personal Author:
      Meinen, C. S.; Speich, S.; Piola, A. R.; Ansorge, I.; Campos, E.; Kersale, M.; Terre, T.; Chidichimo, M. P.; Lamont, T.; Sato, O. T.; Perez, R. C.; Valla, D.; van den Berg, M.; Le Henaff, M.; Dong, S. F.; Garzoli, S. L.;
      Published Date:
      2018
      Source:
      Geophysical Research Letters, 45(9), 4180-4188.
      Description:
      Six years of simultaneous moored observations near the western and eastern boundaries of the South Atlantic are combined with satellite winds to produce a daily time series of the basin-wide meridional overturning circulation (MOC) volume transport a...
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    11. Simulating transport pathways of pelagic Sargassum from the Equatorial Atlantic into the Caribbean Sea
      Personal Author:
      Putman, N. F.; Goni, G. J.; Gramer, L. J.; Hu, C. M.; Johns, E. M.; Trinanes, J.; Wang, M. Q.;
      Published Date:
      2018
      Source:
      Progress in Oceanography, 165, 205-214.
      Description:
      Since 2011, beach inundation of massive amounts of pelagic Sargassum algae has occurred around the Caribbean nations and islands. Previous studies have applied satellite ocean color to determine the origins of this phenomenon. These techniques, combi...
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