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Satellite Observations of the Wind Jets off the Pacific Coast of Central America. Part I: Case Studies and Statistical Characteristics

Creator:: Chelton, Dudley B., Freilich, Michael H., and Esbensen, Steven K.
Abstract:: Measurements of near-surface winds by the NASA scatterometer (NSCAT) from October 1996 through June 1997 are analyzed to investigate the three major wind jets along the Pacific coast of Central America that blow over the Gulfs of Tehuantepec, Papagayo, and Panama. Each jet is easily identifiable as locally intense offshore...
Resource Type:: Article
Full Text:: observations in this region, there have been no detailed studies of the Papagayo jet. An analysis of two weeks

Effects of stencil width on surface ocean geostrophic velocity and vorticity estimation from gridded satellite altimeter data

Creator:: Arbic, Brian K., Scott, Robert B., Chelton, Dudley B., Richman, James G., and Shriver, Jay F.
Abstract:: This paper examines the effect of “stencil width” on surface ocean geostrophic velocity and vorticity estimated from differentiating gridded satellite altimeter sea surface height products. In oceanographic applications, the value of the first derivative at a central grid point is generally obtained by differencing the sea surface heights at adjacent...
Resource Type:: Article
Full Text:: ”, this ratio is small in midlatitudes [e.g., Pedlosky, 1987; Vallis, 2006]. [4] Here we examine the

Eddy properties in the California Current System

Creator:: Kurian, Jaison, Colas, Francois, Capet, Xavier, McWilliams, James C., and Chelton, Dudley B.
Abstract:: Eddy detection and tracking algorithms are applied to both satellite altimetry and a high‐resolution (dx = 5 km) climatological model solution of the U.S. West Coast to study the properties of surface and undercurrent eddies in the California Current System. Eddy properties show remarkable similarity in space and time, and...
Resource Type:: Article
Full Text:: . Most of the eddies have radii in the range of 25–100 km, sea level anomaly amplitudes of 1–4 cm, and

Coupling between Sea Surface Temperature and Low-Level Winds in Mesoscale Numerical Models

Creator:: Song, Qingtao, Chelton, Dudley B., Esbensen, Steven K., Thum, Nicolai, and O'Neill, Larry W.
Abstract:: This study evaluates the impacts of sea surface temperature (SST) specification and grid resolution on numerical simulations of air–sea coupling near oceanic fronts through analyses of surface winds from the European Centre for Medium-Range Weather Forecasts (ECMWF) model. The 9 May 2001 change of the boundary condition from the Reynolds...
Resource Type:: Article
Full Text:: abrupt increase in mesoscale variability of surface winds over mountainous regions on land but had no

Regional variations in the influence of mesoscale eddies on near-surface chlorophyll

Creator:: Gaube, Peter, McGillicuddy, Dennis J., Jr., Chelton, Dudley B., Behrenfeld, Michael J., and Strutton, Peter G.
Abstract:: Eddies can influence biogeochemical cycles through a variety of mechanisms, including the excitation of vertical velocities and the horizontal advection of nutrients and ecosystems, both around the eddy periphery by rotational currents and by the trapping of fluid and subsequent transport by the eddy. In this study, we present an...
Resource Type:: Article
Full Text:: trapping of fluid and subsequent transport by the eddy. In this study, we present an analysis of the

SST–Wind Interaction in Coastal Upwelling: Oceanic Simulation with Empirical Coupling

Creator:: Jin, Xin, Dong, Changming, Kurian, Jaison, McWilliams, James C., Chelton, Dudley B., and Li, Zhijin
Abstract:: Observations, primarily from satellites, have shown a statistical relationship between the surface wind stress and underlying sea surface temperature (SST) on intermediate space and time scales, in many regions inclusive of eastern boundary upwelling current systems. In this paper, this empirical SST–wind stress relationship is utilized to provide a simple...
Resource Type:: Article
Full Text:: confirmed by a recent study in the upwelling frontal zone along the U.S. West Coast (Chelton et al. 2007a

Objective Determination of Feature Resolution in Two Sea Surface Temperature Analyses

Creator:: Reynolds, Richard W., Chelton, Dudley B., Roberts-Jones, Jonah, Martin, Matthew J., Menemenlis, Dimitris, and Merchant, Christopher John
Abstract:: Considerable effort is presently being devoted to producing high-resolution sea surface temperature (SST) analyses with a goal of spatial grid resolutions as low as 1 km. Because grid resolution is not the same as feature resolution, a method is needed to objectively determine the resolution capability and accuracy of SST...
Resource Type:: Article
Full Text:: capability and accuracy of SST analysis products. Ocean model SST fields are used in this study as simulated

Observations of Coupling between Surface Wind Stress and Sea Surface Temperature in the Eastern Tropical Pacific

Creator:: Chelton, Dudley B., Esbensen, Steven K., Schlax, Michael G., Thum, Nicolai, Freilich, Michael H., Wentz, Frank J., Gentemann, Chelle L., McPhaden, Michael J., and Schopf, Paul S.
Abstract:: Satellite measurements of surface wind stress from the QuikSCAT scatterometer and sea surface temperature (SST) from the Tropical Rainfall Measuring Mission Microwave Imager are analyzed for the three-month period 21 July–20 October 1999 to investigate ocean–atmosphere coupling in the eastern tropical Pacific. Oceanic tropical instability waves (TIWs) with periods of...
Resource Type:: Article
Full Text:: underlying SST field described qualita- tively above from the case study shown in Fig. 4 are quantitatively

Eddy dynamics from satellite altimetry

Creator:: Fu, Lee-Lueng, Chelton, Dudley B., Le Traon, Pierre-Yves, and Morrow, Rosemary
Abstract:: Most of the kinetic energy of ocean circulation is contained in ubiquitous mesoscale eddies. Their prominent signatures in sea surface height have rendered satellite altimetry highly effective in observing global ocean eddies. Our knowledge of ocean eddy dynamics has grown by leaps and bounds since the advent of satellite altimetry...
Resource Type:: Article
Full Text:: published in Oceanography, Volume 23, Number 4, a quarterly journal of The Oceanography Society. Copyright

Comment on "seasonal variation in wind speed and sea state from global satellite measurements"

Creator:: Chelton, Dudley B.
Abstract:: In a recent paper, Sandwell and Agreen [1984; hereafter SA] presented figures of global seasonal wind speed and sea state as measured by the GEOS 3 satellite altimeter. Since that time, Chelton and McCabe [1985; hereafter CM] have found that problems exist in the algorithms used to retrieve wind speed...
Resource Type:: Article
Full Text:: GEOPHYSICAL RESEARCH, VOL. 90, NO. C3, PAGES 5001-5008, MAY 20, 1985 Comment on "Seasonal Variation in Wind

ScholarsArchive@OSU

Satellite Observations of the Wind Jets off the Pacific Coast of Central America. Part I: Case Studies and Statistical Characteristics

Effects of stencil width on surface ocean geostrophic velocity and vorticity estimation from gridded satellite altimeter data

Eddy properties in the California Current System

Coupling between Sea Surface Temperature and Low-Level Winds in Mesoscale Numerical Models

Regional variations in the influence of mesoscale eddies on near-surface chlorophyll

SST–Wind Interaction in Coastal Upwelling: Oceanic Simulation with Empirical Coupling

Objective Determination of Feature Resolution in Two Sea Surface Temperature Analyses

Observations of Coupling between Surface Wind Stress and Sea Surface Temperature in the Eastern Tropical Pacific

Eddy dynamics from satellite altimetry

Comment on "seasonal variation in wind speed and sea state from global satellite measurements"

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