Michael G. Schlax
Oregon State University
OceanographyGeologyGeodesySea surface temperatureSea-surface heightRossby waveMeteorologyAltimeterEddyOcean currentSatelliteObservational errorGeographyMesoscale meteorologyClimatologyBaroclinityRemote sensingSea levelGeophysicsAtmospheric sciences
47Publications
28H-index
9,224Citations
Publications 45
Newest
#1Roger M. Samelson (OSU: Oregon State University)H-Index: 37
#2Dudley B. Chelton (OSU: Oregon State University)H-Index: 69
Last. Michael G. Schlax (OSU: Oregon State University)H-Index: 28
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AbstractA statistical-equilibrium, geostrophic-turbulence regime of the stochastically forced, one-layer, reduced-gravity, quasigeostrophic model is identified in which the numerical solutions are ...
3 CitationsSource
#1Dudley B. Chelton (OSU: Oregon State University)H-Index: 69
#2Michael G. Schlax (OSU: Oregon State University)H-Index: 28
Last. Jonathan Gula ('IFREMER': IFREMER)H-Index: 21
view all 7 authors...
Abstract Recent technological developments have resulted in two techniques for estimating surface velocity with higher resolution than can be achieved from presently available nadir altimeter data: (1) Geostrophically computed estimates from high-resolution sea surface height (SSH) measured interferometrically by the wide-swath altimeter on the Surface Water and Ocean Topography (SWOT) Mission with a planned launch in 2021; and (2) Measurements of ocean surface velocity from a Doppler scatterome...
30 CitationsSource
#1Antoine DelepoulleH-Index: 1
#2Dudley CheltonH-Index: 1
Last. Gérald DibarboureH-Index: 17
view all 5 authors...
AbstractA semiempirical model of midlatitude sea surface height (SSH) variability is formulated and tested against two decades of weekly global fields of merged altimeter data. The model is constrained to match approximately the observed SSH wavenumber power spectrum, but it predicts the spatiotemporal SSH field structure as a propagating, damped, linear response to a stochastic forcing field. An objective, coherent-eddy identification and tracking procedure is applied to the model and altimeter...
6 CitationsSource
#1Peter Gaube (OSU: Oregon State University)H-Index: 14
#2Dudley B. Chelton (OSU: Oregon State University)H-Index: 69
Last. Larry W. O'Neill (OSU: Oregon State University)H-Index: 17
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AbstractThree 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 arises from the interaction of the surface stress with the surface current vorticity gradient, resulting in dipoles of Ekman upwelling and do...
174 CitationsSource
#1Roger M. Samelson (OSU: Oregon State University)H-Index: 37
#2Michael G. Schlax (OSU: Oregon State University)H-Index: 28
Last. Dudley B. Chelton (OSU: Oregon State University)H-Index: 69
view all 3 authors...
AbstractIt is shown that the life cycles of nonlinear mesoscale eddies, a major component of low-frequency ocean physical variability, have a characteristic structure that differs fundamentally from that which would be expected on the basis of classical interpretations of ocean eddy evolution in terms of mean flow instability and equilibration followed by frictional, radiative, or barotropic decay, or of vortex merger dynamics in quasigeostrophic turbulent cascades. Further, it is found that the...
43 CitationsSource
#1Romain EscudierH-Index: 11
#2Dudley B. CheltonH-Index: 69
Last. Karine BérangerH-Index: 24
view all 9 authors...
Trabajo presentado en la EGU General Assemby 2013, celebrada del 7 al 12 de abril de 2013 en Viena (Austria)
#1Romain EscudierH-Index: 11
#2Ananda PascualH-Index: 34
Last. Joaquín TintoréH-Index: 61
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Trabajo presentado en el 20 years of progress in Radar Altimetry, celebrado en Venecia, Italia, del 24 al 29 de septiembre de 2012
#1Dudley B. Chelton (OSU: Oregon State University)H-Index: 69
#2Peter Gaube (OSU: Oregon State University)H-Index: 14
Last. Roger M. Samelson (OSU: Oregon State University)H-Index: 37
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Oceanic Rossby waves have been widely invoked as a mechanism for large-scale variability of chlorophyll (CHL) observed from satellites. High-resolution satellite altimeter measurements have recently revealed that sea-surface height (SSH) features previously interpreted as linear Rossby waves are nonlinear mesoscale coherent structures (referred to here as eddies). We analyze 10 years of measurements of these SSH fields and concurrent satellite measurements of upper-ocean CHL to show that these e...
334 CitationsSource
#1Dudley B. Chelton (OSU: Oregon State University)H-Index: 69
#2Michael G. Schlax (OSU: Oregon State University)H-Index: 28
Last. Roger M. Samelson (OSU: Oregon State University)H-Index: 37
view all 3 authors...
Abstract Sixteen years of sea-surface height (SSH) fields constructed by merging the measurements from two simultaneously operating altimeters are analyzed to investigate mesoscale variability in the global ocean. The prevalence of coherent mesoscale features (referred to here as “eddies”) with radius scales of O(100 km) is readily apparent in these high-resolution SSH fields. An automated procedure for identifying and tracking mesoscale features based on their SSH signatures yields 35,891 eddie...
1,231 CitationsSource