Sea level difference between Key West and Miami, Florida

In a previous paper (Montgomery, 1938, p. 177) it was suggested that fluctuations in the drop in sea level from Key West to Miami might indicate fluctuations in strength of the Florida Current. Both stations are located on the left side of the Straits of Florida, Key West near the entrance and Miami 130 nautical miles down the shore at the most constricted section, where it is supposed that the Florida Current runs swiftest...

Comments on \u27Seasonal Variability of the Florida Current,\u27 by Niiler and Richardson

Niiler and Richardson (1973) have presented the results of direct measurements showing the seasonal variation of the volume flux of the Florida Current, from the average low of 25.4 × 106 m3/s in about November to the average high of 33.6 × 106 m3/s in about June. These excellent measurements give us, for the first time, reliable quantitative information about the seasonal variation of a major ocean current

The words naviface and oxyty

It is amazing that English-speaking scientists and seamen have muddled along without a noun for the all-important interface between atmosphere and ocean, sometimes designated with the phrase air-sea interface, more often with the vague phrase sea surface. For clarity and economy of expression, a single word is needed for this floor of the atmosphere and ceiling of the ocean...

Transport of the Florida Current off Habana

This report is an analysis of four Atlantis sections across the Florida Current in the locality between Key West and Habana. In particular the volume transport of the current is calculated from the mass distribution observed on these four sections. The assumptions for the calculations are critically discussed, making use of records of sea level at Key West

Oceanic leveling by a vessel crossing a current

When a current is crossed by a vessel on fixed course at fixed speed, the vessel is displaced downstream. The displacement, D, is proportional to the current speed integrated across the width of the current and is inversely proportional to the vessel\u27s speed...

Fluctuations in monthly sea level on eastern U.S. coast as related to dynamics of western North Atlantic Ocean

In the determination of the pressure and velocity distributions in the oceans, very little use has heretofore been made of the observations of sea level available from the many permanent tidal stations. Insofar as the tidal stations have been interconnected by accurate leveling surveys, such observations would aid in the determination of absolute pressure and velocity distributions...

Analysis of a Hugh M. Smith oceanographic section from Honolulu southward across the equator

Observations from a line of stations made in February-March 1950 ext.ending from 5° S to 21° N along meridian 158° W are analyzed, and the results are presented as distributions of sigma-t, salinity, oxygen, and phosphate in the vertical section. The method of analysis is partly new and is designed to achieve consistency among the several variables. This section is one of a number made in the central Pacific by the U. S. Fish and Wildlife Service

Velocity field distributions due to ideal line vortices

We evaluate numerically the velocity field distributions produced by a bounded, two-dimensional fluid model consisting of a collection of parallel ideal line vortices. We sample at many spatial points inside a rigid circular boundary. We focus on ``nearest neighbor'' contributions that result from vortices that fall (randomly) very close to the spatial points where the velocity is being sampled. We confirm that these events lead to a non-Gaussian high-velocity ``tail'' on an otherwise Gaussian distribution function for the Eulerian velocity field. We also investigate the behavior of distributions that do not have equilibrium mean-field probability distributions that are uniform inside the circle, but instead correspond to both higher and lower mean-field energies than those associated with the uniform vorticity distribution. We find substantial differences between these and the uniform case.Comment: 21 pages, 9 figures. To be published in Physical Review E (http://pre.aps.org/) in May 200

Contribution to the question of the equatorial counter current

The question of the dynamics of the equatorial counter currents of the several oceans was scarcely brought nearer solution by the research of recent years. The attempt of Sverdrup (1932), which Defant (1935) has further pursued, to explain the counter current as a result of the asymmetry about the equator of the westward-flowing north and south equatorial currents, does not suffice. This may be shown by the following short exposition

Viscous, resistive MHD stability computed by spectral techniques

Expansions in Chebyshev polynomials are used to study the linear stability of one dimensional magnetohydrodynamic (MHD) quasi-equilibria, in the presence of finite resistivity and viscosity. The method is modeled on the one used by Orszag in accurate computation of solutions of the Orr-Sommerfeld equation. Two Reynolds like numbers involving Alfven speeds, length scales, kinematic viscosity, and magnetic diffusivity govern the stability boundaries, which are determined by the geometric mean of the two Reynolds like numbers. Marginal stability curves, growth rates versus Reynolds like numbers, and growth rates versus parallel wave numbers are exhibited. A numerical result which appears general is that instability was found to be associated with inflection points in the current profile, though no general analytical proof has emerged. It is possible that nonlinear subcritical three dimensional instabilities may exist, similar to those in Poiseuille and Couette flow