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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
Full Text:: Response to Mesoscale Sea Surface Temperature Perturbations Perlin, N., de Szoeke, S. P., Chelton, D. B

The Effects of Wind Forcing and Background Mean Currents on the Latitudinal Structure of Equatorial Rossby Waves

Creator:: Perez, Renellys C., Chelton, Dudley B., and Miller, Robert N.
Abstract:: The latitudinal structure of annual equatorial Rossby waves in the tropical Pacific Ocean based on sea surface height (SSH) and thermocline depth observations is equatorially asymmetric, which differs from the structure of the linear waves of classical theory that are often presumed to dominate the variability. The nature of this...
Resource Type:: Article
Full Text:: waves along these latitudes are 55.0 � 14.2 and 43.3 � 6.8 cm s�1, respectively (see section 2c for

The Speed of Observed and Theoretical Long Extratropical Planetary Waves

Creator:: Killworth, Peter D., Chelton, Dudley B., and de Szoeke, Roland A.
Abstract:: Planetary or Rossby waves are the predominant way in which the ocean adjusts on long (year to decade) timescales. The motion of long planetary waves is westward, at speeds ≥1 cm s⁻¹ . Until recently, very few experimental investigations of such waves were possible because of scarce data. The advent...
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Full Text:: R 1 R1R 1RR1 2 1 2c cR 1 1952 VOLUME 27J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y

Sampling Errors in Wind Fields Constructed from Single and Tandem Scatterometer Datasets

Creator:: Schlax, Michael G., Chelton, Dudley B., and Freilich, Michael H.
Abstract:: Sampling patterns and sampling errors from various scatterometer datasets are examined. Four single and two tandem scatterometer mission scenarios are considered. The single scatterometer missions are ERS (with a single, narrow swath), NSCAT and ASCAT (dual swaths), and QuikSCAT (a single, broad swath obtained from the SeaWinds instrument). The two...
Resource Type:: Article
Full Text:: atot_18_509.1014_1036.tp 1014 VOLUME 18J O U R N A L O F A T M O S P H

Observations of SST-Induced Perturbations of the Wind Stress Field over the Southern Ocean on Seasonal Timescales

Creator:: O'Neill, Larry W., Chelton, Dudley B., and Esbensen, Steven K.
Abstract:: The surface wind stress response to sea surface temperature (SST) over the latitude range 30°–60°S in the Southern Ocean is described from the National Aeronautics and Space Administration's QuikSCAT scatterometer observations of wind stress and Reynolds analyses of SST during the 2-yr period August 1999 to July 2001. While ocean–atmosphere...
Resource Type:: Article
Full Text:: measured from QuikSCAT over the 2-yr pe- riod is overlaid on the 2-yr average Reynolds SST in Fig. 2c. The

The Modification of Long Planetary Waves by Homogeneous Potential Vorticity Layers

Creator:: de Szoeke, Roland A. and Chelton, Dudley B.
Abstract:: A mechanism by which long planetary waves in the ocean may propagate significantly faster than the classical long baroclinic Rossby waves is investigated. The mechanism depends on the poleward thickening of intermediate density layers and the concomitant thinning of near-surface and deep layers. These features of the mass distribution are...
Resource Type:: Article
Full Text:: the continuous case (Killworth et al. 1997). The result is c 5 B 1 S 1 V, (4.1a) where 2 21 2B 5 2c

The Accuracies of Crossover and Parallel-Track Estimates of Geostrophic Velocity from TOPEX/Poseidon and Jason Altimeter Data

Creator:: Schlax, Michael G. and Chelton, Dudley B.
Abstract:: Mean-squared errors of surface geostrophic velocity estimates from the crossover and parallel-track methods are calculated for altimeters in the Ocean Topography Experiment (TOPEX)/Poseidon and Jason orbits. As part of the crossover method analysis, the filtering properties and errors of cross-track speed estimates are examined. Velocity estimates from both the crossover...
Resource Type:: Article
Full Text:: locations2s h (x, y, t) and (xi, yi, ti) given by 2 2\r\ t hh 2C (x 1 r, t 1 t) 5 s exp 2 2 , (2)h 2 21 2s ss

Dynamical Analysis of the Boundary Layer and Surface Wind Responses to Mesoscale SST Perturbations

Creator:: O'Neill, Larry W., Esbensen, Steven K., Thum, Nicolai, Samelson, Roger M., and Chelton, Dudley B.
Abstract:: The dynamical response of the marine atmospheric boundary layer (MABL) to mesoscale sea surface temperature (SST) perturbations is investigated over the Agulhas Return Current during winter from a 1-month, high-resolution, three-dimensional simulation using the Weather Research and Forecasting (WRF) mesoscale model. A steady lower boundary condition for July 2002 is...
Resource Type:: Article
Full Text:: of cool SST perturbations (Fig. 2c). The range of these SST-induced surface pressure perturbations

Geographical Variability of the First Baroclinic Rossby Radius of Deformation

Creator:: Chelton, Dudley B., deSzoeke, Roland A., Schlax, Michael G., El Naggar, Karim, and Siwertz, Nicolas
Abstract:: Global 1° × 1° climatologies of the first baroclinic gravity-wave phase speed c¹ and the Rossby radius of deformation λ1 are computed from climatological average temperature and salinity profiles. These new atlases are compared with previously published 5° × 5° coarse resolution maps of λ₁ for the Northern Hemisphere and...
Resource Type:: Article
Full Text:: similar discrepancy between observed and 434 VOLUME 28J O U R N A L O F P H Y S I C A L O C E A N O G R

Subseasonal SST Variability in the Tropical Eastern North Pacific during Boreal Summer

Creator:: Maloney, Eric D., Chelton, Dudley B., and Esbensen, Steven K.
Abstract:: Boreal summer intraseasonal (30–90-day time scale) sea surface temperature (SST) variability in the east Pacific warm pool is examined using Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) sea surface temperatures during 1998–2005. Intraseasonal SST variance maximizes at two locations in the warm pool: in the vicinity of 9°N, 92°W...
Resource Type:: Article
Full Text:: Fig. 2b. Reynolds and TAO intraseasonal temperature anomalies are compared in Fig. 2c. In- traseasonal

ScholarsArchive@OSU

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

The Effects of Wind Forcing and Background Mean Currents on the Latitudinal Structure of Equatorial Rossby Waves

The Speed of Observed and Theoretical Long Extratropical Planetary Waves

Sampling Errors in Wind Fields Constructed from Single and Tandem Scatterometer Datasets

Observations of SST-Induced Perturbations of the Wind Stress Field over the Southern Ocean on Seasonal Timescales

The Modification of Long Planetary Waves by Homogeneous Potential Vorticity Layers

The Accuracies of Crossover and Parallel-Track Estimates of Geostrophic Velocity from TOPEX/Poseidon and Jason Altimeter Data

Dynamical Analysis of the Boundary Layer and Surface Wind Responses to Mesoscale SST Perturbations

Geographical Variability of the First Baroclinic Rossby Radius of Deformation

Subseasonal SST Variability in the Tropical Eastern North Pacific during Boreal Summer

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