Arthur J. Mariano

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An ocean surface current radar (OSCR) in the very high frequency (VHF) mode was deployed in South Florida Ocean Measurement Center (SFOMC) during the summer of 1999. During this period, a 29-d continuous time series of vector surface currents was acquired starting on 9 July 1999 and ending 7 August 1999. Over a 20-min sample interval, the VHF radar mapped(More)
A model/data comparison was performed between simulated drifters from a high resolution numerical simulation of the North Atlantic and a data set from in-situ surface drifters. The comparison makes use of pseudo-Eulerian statistics such as mean velocity and eddy kinetic energy, and Lagrangian statistics such as integral time scales. The space and time(More)
[1] In light of the increasing number of drifting buoys in the ocean and recent advances in the realism of ocean general circulation models toward oceanic forecasting, the problem of assimilation of Lagrangian observations data in Eulerian models is investigated. A new and general rigorous approach is developed based on optimal interpolation (OI) methods,(More)
Upper-ocean heat and mass budgets are examined from three snapshots of data acquired during and after the passage of Hurricane Gilbert in the western Gulf of Mexico. Measurements prior to storm passage indicated a warm core eddy in the region with velocities of O(1) m s21. Based upon conservation of heat and mass, the threedimensional mixed layer processes(More)
[1] Surface and subsurface currents and stratification were observed on and near the narrow shelf off Fort Lauderdale, Florida, in June–August 1999. The Florida Current flowed past, occasionally on the shelf, with speeds at times exceeding 2 m s 1 only 8 km offshore. The typical vorticity associated with the lateral shear of the Florida Current was 4f,(More)
Predictability of particle motion in the ocean over a timescale of one week is studied using three clusters of buoys consisting of 5–10 drifters deployed in the tropical Pacific Ocean. The analysis is conducted by using three techniques with increasing complexity: the center of mass of the cluster, advection by climatological currents, and a new technique(More)
The three-dimensional hurricane-induced ocean response is determined from velocity and temperature profiles acquired in the western Gulf of Mexico between 14 and 19 September 1988 during the passage of Hurricane Gilbert. The asymmetric wind structure of Gilbert indicated a wind stress of 4.2 N m22 at a radius of maximum winds (Rmax) of 60 km. Using observed(More)
An hierarchy of ocean models is used to investigate the dynamics of the eastward surface jets that develop along the Indian Ocean equator during the spring and fall, the Wyrtki jets (WJs). The models vary in dynamical complexity from 21⁄2-layer to 41⁄2-layer systems, the latter including active thermodynamics, mixed layer physics, and salinity. To help(More)
In this paper, the statistical properties of the mean ow reconstruction using Lagrangian data are studied, considering the classical \binning" approach based on space-time averaging of nite di erence velocity estimates. The work is performed numerically, using as the test ow a solution from a high resolution MICOM simulation of the North Atlantic. A set of(More)