Index Catalog // ScholarsArchive@OSU

Spatial patterns and trends of summertime low cloudiness for the Pacific Northwest, 1996-2017

Creator:: Dye, Alex W., Rastogi, Bharat, Clemesha, Rachel E. S., Kim, John B., Samelson, Roger M., Still, Christopher J., and Williams, A. Park
Abstract:: Summertime low clouds are common in the Pacific Northwest (PNW), but spatiotemporal patterns have not been characterized. We show the first maps of low cloudiness for the western PNW and North Pacific Ocean using a 22‐year satellite‐derived record of monthly mean low cloudiness frequency for May through September and supplemented...
Resource Type:: Article

Coastally trapped wind reversals : progress toward understanding

Creator:: Nuss, Wendell A., Bane, John M., Thompson, William T., Holt, Teddy, Dorman, Clive E., Ralph, F. Martin, Rotunno, Richard, Klemp, Joseph B., Skamarock, William C., Samelson, Roger M., Rogerson, Audrey M., Reason, Chris, and Jackson, Peter
Abstract:: Coastally trapped wind reversals along the U.S. west coast, which are often accompanied by a northward surge of fog or stratus, are an important warm—season forecast problem due to their impact on coastal maritime activities and airport operations. Previous studies identified several possible dynamic mechanisms that could be responsible for...
Resource Type:: Article

Quasi-Geostrophic Topographically Generated Mean Flow over the Continental Margin

Creator:: Samelson, Roger M. and Allen, J. S.
Abstract:: Observations of oppositely directed, monthly mean alongshore currents and wind stress over the continental margin off the Pacific coast of North America motivate the theoretical examination of mean flow generation by topographic lee-wave drag. We formulate a barotropic model for wind-forced shelf-slope flow over variable topography. Our central objective is...
Resource Type:: Article

Summertime Coupling between Sea Surface Temperature and Wind Stress in the California Current System

Creator:: Chelton, Dudley B., Schlax, Michael G., and Samelson, Roger M.
Abstract:: Satellite observations of wind stress and sea surface temperature (SST) are analyzed to investigate ocean–atmosphere interaction in the California Current System (CCS). As in regions of strong SST fronts elsewhere in the World Ocean, SST in the CCS region is positively correlated with surface wind stress when SST fronts are...
Resource Type:: Article

The ventilated pool: a model of subtropical mode water

Creator:: Dewar, W. K., Samelson, Roger M., and Vallis, G. K.
Abstract:: An analytical model of subtropical mode water is presented, based on ventilated thermocline theory and on numerical solutions of a planetary geostrophic basin model. In ventilated thermocline theory, the western pool is a region bounded on the east by subsurface streamlines that outcrop at the western edge of the interior,...
Resource Type:: Article

Evidence for atmospheric control of sea-ice motion through Nares Strait

Creator:: Samelson, Roger M., Agnew, T., Melling, H., and Munchow, A.
Abstract:: Satellite observations of ice motion are combined with model estimates of low‐level winds and surface wind stress to provide evidence for atmospheric control of sea‐ice motion through Nares Strait, between Ellesmere Island and Greenland, during two periods in 2004. The results suggest that ice flux through the strait, and its...
Resource Type:: Article

Modeled ocean circulation in Nares Strait and its dependence on landfast-ice cover

Creator:: Shroyer, Emily L., Samelson, Roger M., Padman, Laurie, and Münchow, Andreas
Abstract:: Two simplified ocean simulations are used to study circulation and transport within Nares Strait. The simulations are similar, except that one included a coupled sea ice model that effectively established a landfast ice cover throughout the simulation year. Comparison between the ocean-only and ocean-ice simulations reveals a systematic change in...
Resource Type:: Article

The LatMix Summer Campaign: Submesoscale Stirring in the Upper Ocean

Creator:: Shcherbina, Andrey Y., Sundermeyer, Miles A., Kunze, Eric, D'Asaro, Eric, Badin, Gualtiero, Birch, Daniel, Brunner-Suzuki, Anne-Marie E. G., Callies, Jörn, Kuebel Cervantes, Brandy T., Claret, Mariona, Concannon, Brian, Early, Jeffrey, Ferrari, Raffaele, Goodman, Louis, Harcourt, Ramsey R., Klymak, Jody M., Lee, Craig M., Lelong, M.-Pascale, Levine, Murray D., Lien, Ren-Chieh, Mahadevan, Amala, McWilliams, James C., Molemaker, M. Jeroen, Mukherjee, Sonaljit, Nash, Jonathan D., Özgökmen, Tamay, Pierce, Stephen D., Ramachandran, Sanjiv, Samelson, Roger M., Sanford, Thomas B., Shearman, R. Kipp, Skyllingstad, Eric D., Smith, K. Shafer, Tandon, Amit, Taylor, John R., Terray, Eugene A., Thomas, Leif N., and Ledwell, James R.
Abstract:: Lateral stirring is a basic oceanographic phenomenon affecting the distribution of physical, chemical, and biological fields. Eddy stirring at scales on the order of 100 km (the mesoscale) is fairly well understood and explicitly represented in modern eddy-resolving numerical models of global ocean circulation. The same cannot be said for...
Resource Type:: Article

Satellite Observations of Mesoscale Eddy-Induced Ekman Pumping

Creator:: Gaube, Peter, Chelton, Dudley B., Samelson, Roger M., Schlax, Michael G., and O'Neill, Larry W.
Abstract:: Three mechanisms for self-induced Ekman pumping in the interiors of mesoscale ocean eddies are investigated. The first arises from the surface stress that occurs because of differences between surface wind and ocean velocities, resulting in Ekman upwelling and downwelling in the cores of anticyclones and cyclones, respectively. The second mechanism...
Resource Type:: Article

Modeling the Atmospheric Boundary Layer Wind Response to Mesoscale Sea Surface Temperature Perturbations

Creator:: Perlin, Natalie, de Szoeke, Simon P., Chelton, Dudley B., Samelson, Roger M., Skyllingstad, Eric D., and O'Neill, Larry W.
Abstract:: The wind speed response to mesoscale SST variability is investigated over the Agulhas Return Current region of the Southern Ocean using the Weather Research and Forecasting (WRF) Model and the U.S. Navy Coupled Ocean–Atmosphere Mesoscale Prediction System (COAMPS) atmospheric model. The SST-induced wind response is assessed from eight simulations with...
Resource Type:: Article

ScholarsArchive@OSU

Spatial patterns and trends of summertime low cloudiness for the Pacific Northwest, 1996-2017

Coastally trapped wind reversals : progress toward understanding

Quasi-Geostrophic Topographically Generated Mean Flow over the Continental Margin

Summertime Coupling between Sea Surface Temperature and Wind Stress in the California Current System

The ventilated pool: a model of subtropical mode water

Evidence for atmospheric control of sea-ice motion through Nares Strait

Modeled ocean circulation in Nares Strait and its dependence on landfast-ice cover

The LatMix Summer Campaign: Submesoscale Stirring in the Upper Ocean

Satellite Observations of Mesoscale Eddy-Induced Ekman Pumping

Modeling the Atmospheric Boundary Layer Wind Response to Mesoscale Sea Surface Temperature Perturbations

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