Index Catalog // ScholarsArchive@OSU

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:: Altimeter Data MICHAEL G. SCHLAX AND DUDLEY B. CHELTON College of Oceanic and Atmospheric Sciences, Oregon

Creator:: Chelton, Dudley B. and Schlax, Michael G.
Abstract:: A technique previously developed for assessing the effects of sampling errors on sea surface height (SSH) fields constructed from satellite altimeter data is extended to include measurement errors, thus providing estimates of the total mean-squared error of the SSH fields. The measurement error contribution becomes an important consideration with the...
Resource Type:: Article
Full Text:: B. CHELTON AND MICHAEL G. SCHLAX College of Oceanic and Atmospheric Sciences, Oregon State

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:: Chelton, Dudley B. and Schlax, Michael C.
Abstract:: A formalism is presented for quantifying the sampling error of an arbitrary linear estimate of a time-averaged quantity constructed from a time series of irregularly spaced observations at a fixed location. The method is applicable to any irregularly sampled time series; it is applied here to satellite observations of chlorophyll...
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Full Text:: of Chlorophyll Concentration DUDLEY B. CHELTON AND MICHAEL C. SCHLAX College of Oceanography

Creator:: Schlax, Michael G. and Chelton, Dudley B.
Resource Type:: Article
Full Text:: sea surface height data” by M. G. Schlax and D. B. Chelton JOURNAL OF GEOPHYSICAL RESEARCH

Creator:: Schlax, Michael G. and Chelton, Dudley B.
Abstract:: Westward propagating Gaussian eddies with statistical characteristics estimated from altimeter observations but with purely random starting locations and times produce striated features in time-averaged maps of zonal velocity. The striations in these simulations have magnitudes and meridional scales comparable to those reported from time-averaged altimeter observations and model output in...
Resource Type:: Article
Full Text:: of quasi-zonal jets in the ocean Michael G. Schlax1 and Dudley B. Chelton1 Received 15 September

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
Full Text:: Aliased tidal errors in TOPEX/POSEIDON sea surface height data Michael G. Schlax and Dudley B. Chelton

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
Full Text:: tidal errors in altimeter height measurements Michael G. Schlax and Dudley B. Chelton College of

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...
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Full Text:: Errors in Wind Fields Constructed from Single and Tandem Scatterometer Datasets MICHAEL G. SCHLAX

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
Full Text:: Satellite Altimeter Datasets DIANA J. M. GREENSLADE,D UDLEY B. CHELTON, AND MICHAEL G. SCHLAX College of

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