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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...
Velocity Curve Studies of Spectroscopic Binary Stars V380 Cygni, V401 Cyg, V523 Cas, V373 Cas and V2388 Oph
Stars binaries eclipsing—stars binaries spectroscopic
2010/9/15
Using measured radial velocity data of five double lined spectroscopic binary systems V380 Cygni, V401 Cyg, V523 Cas, V373 Cas and V2388 Oph, we find corresponding orbital and spectroscopic elements v...
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...
Random heterogeneous model with bimodal velocity distribution for Methane Hydrate exploration
methane hydrate bimodal distribution random heterogeneous
2009/3/5
We have developed a random heterogeneous velocity model with bimodal distribution in methane hydrate-bearing zones. The P-wave well-log data have a von Karman type autocorrelation function and non-Gau...
Estimating the shear velocity profile of Quaternary silts using microtremor array (SPAC) measurements
microtremor method Rayleigh waves sediment thickness
2009/3/5
We have used the microtremor method, with arrays of up to 96 m diameter, to carry out non-invasive estimation of shear-wave velocity profiles to a depth of 30 to 50 m in unconsolidated Quaternary Yarr...
Fast calculation of the Jacobian of surface wave phase velocity
least-squares inversion Haskell method Jacobian
2009/3/5
Partial derivatives of surface wave phase velocity with respect to layer parameters, such as P-wave velocity and S-wave velocity, are the Jacobians of the linearlized least-squares scheme for the inve...
Meteoroid velocity distribution derived from head echo data collected at Arecibo during regular world day observations
Meteoroid velocity distribution head echo data Arecibo
2009/2/27
We report the observation and analysis of ionization flashes associated with the decay of meteoroids (so-called head echos) detected by the Arecibo 430 MHz radar during regular ionospheric observation...