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Experimental Determination of the Eddy Diffusion Coefficient Over the Open Ocean from Atmospheric Electric Measurements
Experimental Determination Eddy Diffusion Coefficient Atmospheric Electric Measurements
2009/4/3
The method of determining the eddy diffusivity over the open ocean either from profiles of the average electric filed or from average values of space charge and electric field measured near the sea su...
Measurements of Momentum and Sensible Heat Fluxes Over the Open Ocean
Floating Instrument Platform Sensible Heat Fluxes Barbados Oceanographic and Meteorological Experiment
2009/4/2
Vertical fluxes of momentum and sensible heat have been measured above the sea surface by the direct dissipation method. Measurements were made over the open ocean from the Scripps Floating Instrument...
Baroclinic instability is examined in a two-layer, quasi-geostrophic model for linearized mesoscale waves (i.e., with periods of a few months and length scales near the internal deformation radius). T...
Pressure Fluctuations on the Open Ocean Floor Over a Broad Frequency Range：New Program and Early Results
Pressure Fluctuations Broad Frequency Range Open Ocean Floor
2009/2/19
A two-month ocean-floor pressure record obtained 330 km to the east of the main island of Hawaii by means of a Bourdon tube-type transducer with optical readout is discussed in detail. An approach to ...
Dynamical Forecast Experiments with a Barotropic Open Ocean Model
Dynamical Forecast Experiments Barotropic Open Ocean Model
2009/2/19
The initial/boundary value problem for the barotropic version of a quasi-geostrophic open ocean model which requires normal flow everywhere on the boundary and vorticity on the inflow is studied. Para...
Open Ocean Momentum Flux Measurements in Moderate to Strong Winds
Ocean Momentum Flux Measurements Strong Winds
2009/2/9
Measurements of the momentum flux were made by the Reynolds flux and dissipation methods on a deep water stable tower operated by the Bedford Institute of Oceanography, A modified Gill propeller-vane ...
Open Ocean Modeling as an Inverse Problem：Tidal Theory
Open Ocean Modeling Inverse Problem Tidal Theory
2009/2/8
Classical models of tides in open coastal regions employ ad hoc conditions on the open boundaries instead of reliable sea level data on the coastline in order to achieve a well-posed problem. A weight...
Estimation of Low-Frequency Wind Stress Fluctuations over the Open Ocean
Low-Frequency Wind Stress Fluctuations Open Ocean
2009/2/5
A simple, approximate formula for mean wind stress is given in terms of the mean and variance of the wind fluctuations over the averaging period. The formula is nonlinear with respect to the mean wind...
Pressure Fluctuations on the Open-Ocean Floor off the Gulf of California：Tides, Earthquakes, Tsunamis
Pressure Fluctuations Tides Earthquakes Tsunamis Open-Ocean Floor
2009/2/5
This paper supplements an initial article on sea-floor pressure observations conducted with a sensitive though not “perfectly” stable transducer. A variety of examples are used to demonstrate that a w...
Steady wind-drift currents in a deep viscous rotating ocean are studied theoretically. The analysis is based on the Lagrangian description of motion.
A mean wind-stress at the surface yields the tr...
Open Ocean Modeling as an Inverse Problem：M2 Tides in Bass Strait
Open Ocean Modeling Inverse Problem M2 Tides
2009/1/19
The solution of a linear model of barotropic M2 tides in Bass Strait is not consistent with new high quality tide gage and current meter data. This is attributed to the method used to estimate the for...
Toward the Application of the Kalman Filter to Regional Open Ocean Modeling
Kalman Filter Regional Open Ocean Modeling
2009/1/10
As ocean models improve, assimilation of data with the help of models becomes increasingly important. The Kalman filter provides a method for assimilation of data that are arbitrarily distributed in t...
Hindcasting and Forecasting of the POLYMODE Data Set with the Harvard Open–Ocean Model
POLYMODE Data Set Harvard Open–Ocean Model regional quasi-geostrophic model
2008/12/30
A regional quasi-geostrophic model has been used to hindcast and forecast the POLYMODE data set. After briefly discussing hindcast methodology, the hindcast fields are compared with the analyzed data ...
Data Assimilation in a Quasi-geostrophic Open-Ocean Model of the Gulf Stream Region Using the Adjoint Method
quasi-geostrophic Gulf Stream Region Quasi-geostrophic Open-Ocean Model
2008/12/23
The method of adjoint data assimilation is applied in a quasi-geostrophic (QG) open-ocean model of the Gulf Stream region. The results of data assimilation experiments are presented in which simulated...
A Study of Wind Stress and Heat Flux over the Open Ocean by the Inertial-Dissipation Method
Wind Stress Heat Flux Open Ocean Inertial-Dissipation Method
2008/12/19
A bow-mounted propeller anemometer and fast-response temperature sensors were operated during several cruises of CSS Dawson. Spectra of wind speed and temperature fluctuations were measured over the o...