Index Catalog // ScholarsArchive@OSU

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

Creator:: Greenslade, Diana J. M., Chelton, Dudley B., and Schlax, Michael G.
Abstract:: A formalism recently developed for determining the effects of sampling errors on objectively smoothed fields constructed from an irregularly sampled dataset is applied to investigate the relative merits of single and multiple satellite altimeter missions. For small smoothing parameters, the expected squared error of smoothed fields of sea surface height...
Resource Type:: Article

Creator:: Chelton, Dudley B., Schlax, Michael G., Witter, Donna L., and Richman, James G.
Abstract:: The variability of sea level and surface geostrophic currents in the Southern Ocean is investigated from the first 26 months of unclassified Geosat altimeter data (November 1986 to December 1988). Because of problems unique to Geosat, it has been necessary to develop new techniques for analyzing the height data. These...
Resource Type:: Article

Creator:: Chelton, Dudley B. and Schlax, Michael G.
Abstract:: A mean reference surface and time-dependent orbit errors are estimated simultaneously for each exact-repeat ground track from the first two years of Geosat sea level estimates based on the Goddard Earth model (GEM)-T2 orbits. Motivated by orbit theory and empirical analysis of Geosat data, the time-dependent orbit errors are modeled...
Resource Type:: Article

Creator:: Matano, Ricardo P., Schlax, Michael G., and Chelton, Dudley B.
Abstract:: The circulation of the southwestern Atlantic Ocean is dominated by the Subtropical Gyre and the confluence of the Brazil and Malvinas currents. Observations indicate that the latitude of this confluence changes seasonally, lying farther north during the austral winter than during the summer. This phenomenon has important consequences for the...
Resource Type:: Article

Creator:: Schlax, Michael G. and Chelton, Dudley B.
Abstract:: Alias periods and wavelengths for the M2, S2, N2, K1, O1, and P1 tidal constituents are calculated for TOPEX/POSEIDON. Alias wavelengths calculated in previous studies are shown to be in error, and a correct method is presented. With the exception of the K1 constituent, all of these tidal aliases for...
Resource Type:: Article

Creator:: Schlax, Michael G. and Chelton, Dudley B.
Abstract:: A simple statistic is derived for quantifying the potential for the aliasing of tidal errors in a given linear estimate of sea surface height constructed from altimeter data. The existence of M2 tidal constituent errors in Geosat data processed in the traditional way (i.e., with orbit errors removed using least...
Resource Type:: Article

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