搜索结果: 1-15 共查到“海洋物理学 Velocity”相关记录69条 . 查询时间(0.078 秒)
Using a linear array to estimate the velocity of underwater moving targets
underwater velocity measurement linear array direction of arrival (DOA) deterministic maximum likelihood signal phase matching
2011/9/13
A new method uses a linear array that takes advantage of underwater physical sound fields to estimate the velocity of an underwater moving target. The mathematical model was established by considering...
Lagrangian velocity statistics of directed launch strategies in a Gulf of Mexico model
Lagrangian velocity statistics directed launch strategies Gulf of Mexico model
2009/11/11
The spatial dependence of Lagrangian displacement and velocity statistics is studied in the context of a data assimilating numerical model of the Gulf Mexico. In the active eddy region of the Western ...
Bispectra and Cross-Bispectra of Temperature, Salinity, Sound Velocity and Density Fluctuations with Depth off Northeastern Japan
Temperature Salinity Sound Velocity Density Fluctuations
2009/4/2
Off northeastern Japan, depth profiles of temperature, salinity, sound velocity and density show considerable structure between 30 and 240 m. The structure is asymmetric with respect to the mean and t...
A free-fall oceanographic instrument capable of producing direct estimates of the local rate of energy dissipation has been developed. The velocity sensor in an adaptation of the two-component airfoil...
This paper is a theoretical and experimental investigation of the nature of oceanic velocity gradients. Starting with the equations of motion, equations governing the dynamic behavior of velocity grad...
Modal Decomposition of the Velocity Field near the Oregon Coast
Modal Decomposition Velocity Field Oregon Coast
2009/3/24
The low-frequency [ω<0.5 cycle per day (cpd)] current fluctuations at four depths in 100 m of water have been investigated for two stations on the continental shelf off the coast of Oregon. One statio...
On North Pacific Temperature, Salinity, Sound Velocity and Density Fronts and their Relation to the Wind and Energy Flux Fields
North Pacific Temperature Sound Velocity Salinity Density Fronts Energy Flux Fields
2009/3/24
The main oceanic fronts of the North Pacific are investigated and the principal frontogenetic processes described. Fronts are features of the upper ocean and occur near mass transport and energy flux ...
Internal Wave Reflection by a Velocity Shear and Density Anomaly
Internal Wave Velocity Shear Density Anomaly
2009/3/24
Numerical solutions are obtained for the reflection of upward propagating internal waves by simple pycnocline and current shear models. Results for a simple monotonic shear and a velocity jet, with an...
Determination of the Sea Surface Slope Distribution and Wind Velocity using Sun Glitter Viewed from a Synchronous Satellite
Wind Velocit Synchronous Satellite Sea Surface Slope Distribution
2009/3/9
This work demonstrates the feasibility of determining the east-west component of the sea surface slope distribution from a synchronous satellite, through quantitative analysis of the sun glitter.
T...
A Study of Velocity Profiles Through the Main Thermocline
Velocity Profiles Main Thermocline
2009/3/7
A time series of velocity profiles derived from three methods are used to describe the variations of current in time and in the vertical. Absolute velocity profiles were Obtained by acoustically track...
Velocity Observations in the West Passage of Narragansett Bay：A Partially Mixed Estuary
West Passage of Narragansett Bay A Partially Mixed Estuary
2009/3/7
Narragansett Bay is a weakly stratified estuary comprised of three connecting passages of varying depths. The vertical distribution of horizontal velocity was observed in the West Passage using moored...
Horizontal Divergence and Vorticity Estimates from Velocity and Temperature Measurements in the MODE Region
Horizontal Divergence MODE Region Vorticity Estimates
2009/3/7
Estimates of horizontal derivatives of velocity made by differencing velocity measurements are used to show that the observed velocity field due to low-frequency mesoscale motions during the prelimina...
A New Method for Measuring the Directional Wave Spectrum. Part II. Measurement of the Directional Spectrum and Phase Velocity of Laboratory Wind Waves
Directional Wave Spectrum Phase Velocity Directional Spectrum Laboratory Wind Waves
2009/2/23
A new method for measuring the directional spectrum, introduced in the preceding paper (Rikiishi, 1978), has been applied to actual wind waves in a large experimental tank 70 m × 8 m with the water 3 ...
Absolute Geostrophic Velocity Determination from Historical Hydrographic Data in the Western North Atlantic
Western North Atlantic Geostrophic Velocity Historical Hydrographic Data
2009/2/18
Beta-spiral calculations are presented using averaged western North Atlantic hydrographic data from the period 1914–73. Profiles of long-term mean geostrophic flow relative to ISM db along 70°W from 2...
The Depth Variability of Meridional Gradients of Temperature, Salinity and Sound Velocity in the Western North Pacific
Meridional Gradients Temperature Salinity Sound Velocity
2009/2/13
In the western North Pacific, meridional gradients of temperature, salinity and sound velocity show considerable variation with depth. Gradients of frontal intensity (more than three times the rms val...