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Full-Text Articles in Marine Biology
Large-Scale Estimation Of Transport From The Pacific To The Indian Ocean, James T. Potemra, Roger Lukas, Gary T. Mitchum
Large-Scale Estimation Of Transport From The Pacific To The Indian Ocean, James T. Potemra, Roger Lukas, Gary T. Mitchum
Marine Science Faculty Publications
The objective of this model-data intercomparison is to determine the feasibility of deriving an useful index for fluctuations in the Pacific to Indian Ocean throughflow volume transport. Due to insufficient direct observations and the present limitations in numerical models, accurate estimation of variations in the throughflow transport on seasonal to interannual timescales is not yet possible; however, an index based on weighted, monthly mean sea level anomalies in different regions of the western Pacific and eastern Indian Oceans is presented. Numerical model results and sea level from the TQPEX/POSEIDON altimeter show that the large-scale pressure gradient forcing of the throughflow …
Evidence For A Volcanic Cooling Signal In A 335-Year Coral Record From New Caledonia, Thomas J. Crowley, Terrence M. Quinn, Frederick W. Taylor, Christian Henin, Pascale Joannot
Evidence For A Volcanic Cooling Signal In A 335-Year Coral Record From New Caledonia, Thomas J. Crowley, Terrence M. Quinn, Frederick W. Taylor, Christian Henin, Pascale Joannot
Marine Science Faculty Publications
Although volcanic cooling events have been detected in tree ring records, their occurrence in marine records has received much less attention, Herein we report results from a 335-year oxygen isotope record (1657-1992) from a New Caredonia coral indicating that as many as 16 interannual-scale cooling events occur within 1 year of a volcanic eruption as determined by ice core records, There are also pentadal/decadal-scale cooling events beginning in 1675, 1813, and 1903 that immediately postdate volcanic eruptions. However, the interannual correspondences are complicated by the fact that some of the cooling events also coincide with El Ninos, which cause cooling …
The Zonal Momentum Balance Of The Equatorial Undercurrent In The Central Pacific, L. Qiao, Robert H. Weisberg
The Zonal Momentum Balance Of The Equatorial Undercurrent In The Central Pacific, L. Qiao, Robert H. Weisberg
Marine Science Faculty Publications
Current velocity data from an array of subsurface moorings deployed during the Tropical Instability Wave Experiment from May 1990 to June 1991 are used to diagnose the upper-ocean zonal momentum balance at 08, 1408W. The flow field and associated zonal momentum flux divergence are fully three-dimensional over the upper 250 m, consistent with the earliest descriptions and theoretical ideas of the Equatorial Undercurrent (EUC). Estimates of the vertical stress divergence show dynamical flow regimes that change between the surface and the base of the EUC, being essentially linear (modified by nonlinearity) near the surface, weakly nonlinear at the EUC core, …
Analysis Of Ribulose Bisphosphate Carboxylase Gene Expression In Natural Phytoplankton Communities By Group-Specific Gene Probing, S. L. Pichard, L. Campbell, Kendall L. Carder, J. B. Kang, J. Patch, F. Robert Tabita, John H. Paul
Analysis Of Ribulose Bisphosphate Carboxylase Gene Expression In Natural Phytoplankton Communities By Group-Specific Gene Probing, S. L. Pichard, L. Campbell, Kendall L. Carder, J. B. Kang, J. Patch, F. Robert Tabita, John H. Paul
Marine Science Faculty Publications
To understand the composition and photosynthetic carbon fixing activities of natural phytoplankton communities, we employed group-specific ribulose bisphosphate carboxylase (RubisCO) large subunit gene probes (rbcL) to examine RubisCO gene expression. The rbcL genes from Synechococcus PCC6301 (cyano) and from Cylindrotheca sp. (chrome) were used as probes at select stations to examine levels of rbcL mRNA in specific size fractions (>5 mu m, 1-5 mu m, m) in surface waters of the mouth of Tampa Bay (estuarine), West Florida Shelf (coastal), and from the offshore Gulf of Mexico. Using DNA purified from algal isolates, we demonstrated that the cyano probe …
Basin-Wide Zonal Wind Stress And Ocean Thermal Variations In The Equatorial Pacific Ocean, Y. J. Yang, T. Y. Tang, Robert H. Weisberg
Basin-Wide Zonal Wind Stress And Ocean Thermal Variations In The Equatorial Pacific Ocean, Y. J. Yang, T. Y. Tang, Robert H. Weisberg
Marine Science Faculty Publications
Wind data, obtained from the model results of the European Centre for Medium Range Weather Forecasts (ECMWF), for the equatorial Pacific Ocean from 1985 to 1992, were employed to study the basin-wide distributions for various constituents of zonal wind stress. Forcing the ocean by the individual constituent of zonal wind stress, the upper ocean thermal variation was investigated using a linear analytical ocean model. The interannual variation of zonal wind stress is largest in amplitude in the west-central part of the basin and is dominated by an eastwardly propagating wave. The upper layer thickness perturbation h shows an evolving eastward …