搜索结果: 1-15 共查到“海洋物理学 Altimetry”相关记录18条 . 查询时间(0.109 秒)
Altimetry-observed semi-annual cycle in the South China Sea: Real signal or alias of K1 tidal error?
sea level semi-annual cycle satellite altimetry South China Sea
2009/11/17
There have been a number of applications of satellite altimetry to seasonal and interannual sea level variability in the South China Sea. However, these applications usually exclude shallow waters alo...
A fractal model for the sea state bias in radar altimetry
fractal model sea state bias radar altimetry
2009/11/13
The Kirchhoff approximation is used to determine the sea state bias in radar altimetry. A weakly nonlinear model of the sea waves is used to derive the joint moments of two different points separated ...
Temporal Variations in Regional Models of the Sargasso Sea from GEOS-3 Altimetry
sea surface height Regional Models Temporal Variations
2009/2/16
The dense coverage of short-pulse mode GEOS-3 altimeter data in the western North Atlantic provides a basis for studying time variations in sea surface height (SSH) in the Sargasso Sea. Two techniques...
A Study of the Variability of Ocean Currents in the Northwestern Atlantic Using Satellite Altimetry
Altimeter data Ocean Currents Satellite Altimetry Northwestern Atlantic
2009/2/5
Altimeter data obtained from GEOS-3 during the three year period 1975–78 for a region of the western North Atlantic which includes a portion of the Gulf Stream system and part of the open ocean area o...
Determining the Ocean Circulation and Improving the Geoid from Satellite Altimetry
Ocean Circulation Satellite Altimetry
2009/1/15
The combined problem of determining the ocean circulation and improving the geoid from satellite altimetry is formulated and studied. Minimum variance estimation is used to form optimum estimates of t...
Mesoscale Variability between New York and Bermuda from Repeated XBT Sections and Satellite Altimetry
Mesoscale Variability Satellite Altimetry Repeated XBT Sections
2009/1/15
Over a five-year period, 119 XBT sections were made along essentially the same tracks between New York and Bermuda. These data, consisting of 6300 observations, provide a detailed record of Gulf Strea...
Observation of Long Equatorial Waves in the Pacific Ocean by Seasat Altimetry
Long Equatorial Waves Pacific Ocean Seasat Altimetry
2009/1/9
Synoptic maps of the mesoscale dynamic topography in a band between 7.5°N and 7.5°S in the Pacific Ocean are drawn from Seasat altimeter data. They show a set of eddies 600 km in diameter and 15–20 cm...
Estimating the Basin-Scale Ocean Circulation from Satellite Altimetry. Part I Straightforward Spherical Harmonic Expansion
GEM-T1 Basin-Scale Ocean Circulation Spherical Harmonic Expansion
2009/1/6
Direct estimation of the absolute dynamic topography from satellite altimetry has been confined to the largest scales (basically the basin scale) owing to the fact that the signal-to-noise ratio i mor...
Variability of the Somali Current as Observed from Seasat Altimetry
Somali Current Seasat Altimetry
2009/1/5
Three methods of extraction of mesoscale variability from altimetry are compared in the Somali current area: crossover residuals after minimization to reduce orbit errors, along-track variability usin...
Eddy Variability in the Kuroshio Extension as Revealed by Geosat Altimetry：Energy Propagation Away from the Jet, Reynolds Stress, and Seasonal Cycle
Exact Repeat Mission Eddy Variability Seasonal Cycle Reynolds Stress
2008/12/30
Altimetric sea level data around the Kuroshio Extension, collected during the first year of the Geosat Exact Repeat Mission (ERM) (starting in November 1986), have been analyzed for energy propagation...
Estimating the Surface Transport of Meandering Oceanic Jet Streams from Satellite Altimetry：Surface Transport Estimates for the Gulf Stream and Kuroshio Extension
Surface Transport Estimates Kuroshio Extension Gulf Stream Oceanic Jet Streams
2008/12/27
A method has been developed to detect the location, width maximum velocity, and suffice transport of a meandering oceanic jet stream from satellite altimetry. Ale method is based on a nonlinear least ...
Equilibrium Wave Spectrum and Sea State Bias in Satellite Altimetry
Equilibrium Wave Spectrum Sea State Bias Satellite Altimetry
2008/12/24
For a well-developed sea at equilibrium with a constant wind, the energy-containing range of the wavenumber spectrum for wind-generated gravity waves is approximated by a generalized power law β(U2/g)...
Mesoscale Variability in the Atlantic Ocean from Geosat Altimetry and WOCE High-Resolution Numerical Modeling
Mesoscale Variability Atlantic Ocean WOCE High-Resolution Numerical Modeling
2008/12/22
Characteristic of the mesoscale variability in the Atlantic Ocean are investigated by analyzing the Geosat altimeter signal between 60°S and 60°N. The rms sea-surface variability for various frequency...
The Iceland–Faroe Front：A Synergistic Study of Hydrography and Altimetry
Iceland–Faroe Front hydrographic surveys
2008/12/17
Two triangular hydrographic surveys were conducted in the Iceland-Faroes region with sampling corresponding to the ERS-1 3-day commissioning-phase orbit. The CTD, XBT, and ADCP data show a very active...
Surface Eddy Momentum Flux and Velocity Variances in the Southern Ocean from Geosat Altimetry
Surface Eddy Momentum Flux Southern Ocean Velocity Variances Geosat Altimetry
2008/12/16
Satellite altimetry has previously been used to map the magnitude of the surface eddy variability of the global oceans, but the direction of the time-variable velocities have been more difficult to de...