Thomas A. Rago

Naval Postgraduate School

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Curtis A. Collins

Liverpool John Moores University

Tetyana Margolina

Naval Postgraduate School

Newell Garfield

NOAA National Marine Fisheries Service Southwest Fisheries Science Center

Baldo Marinovic

University of California, Santa Cruz

Reiko Michisaki

Monterey Bay Aquarium Research Institute

Marguerite Blum

Oceanography Society

Katherine E. Whitaker

University of Copenhagen

Leonid M. Ivanov

Naval Postgraduate School

Carmen G. Castro

Instituto de Investigacións Mariñas

Rubén Castro

Universidad Autónoma de Baja California

Cooperative Institutions

Naval Postgraduate School

Woods Hole Oceanographic Institution

Scripps Institution of Oceanography

National Oceanic and Atmospheric Administration

Oregon State University

University of California, San Diego

University of Washington

Monterey Bay Aquarium Research Institute

NOAA Pacific Marine Environmental Laboratory

University of Hawaii System

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Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in October 2008

Thomas A. Rago Reiko Michisaki Baldo Marinovic Marguerite Blum Katherine E. Whitaker

10.21236/ada500297

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Citations (1)

Heat Transport into the North Atlantic Ocean North of 32°N Latitude

Journal of Physical Oceanography (1987)

Thomas A. Rago T. Rossby

Direct velocity and temperature measurements obtained on a bimonthly basis from September 1980 to May 1983 in the Gulf Stream at 73°W longitude were used in combination with historical hydrographic and current meter data across the remainder of the ocean to obtain an annual mean estimate, as well as seasonally averaged estimates, of poleward heat transport in the North Atlantic Ocean at 32°N latitude. The annual mean heat transport was found to be northward across 32°N with a magnitude of (1.38 ± 0.19) × 1015 W and with an annual cycle of abut 0.4 × 1015 W from its minimum in the first half of the year to its maximum in the second half. The main contribution to the annual cycle comes from the Gulf Stream. The heat transport at 32°N was also examined in terms of the mass transport of different temperature classes. This analysis shows that the heat transport into the North Atlantic basin is due to a diagonal cell in which a net amount of warm water flows northward in the upper layers in the western boundary current, and is balanced by a southward return flow at deeper levels in the central ocean. Our results are consistent with those of Hall and Bryden, who have estimated the mean meridional Atlantic heat transport at 24.5°N.

Current meter

Boundary current

Gulf Stream

Longitude

Annual cycle

Oceanic basin

10.1175/1520-0485(1987)017<0854:htitna>2.0.co;2

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Citations (42)

Observation and prediction of flotsam trajectories in the California Current System based on surface drift of RAFOS floats

Deep Sea Research Part II Topical Studies in Oceanography (2018)

Dallas Cody Gates Tetyana Margolina Curtis A. Collins Thomas A. Rago

Drifter

Drift current

Mixed layer

10.1016/j.dsr2.2018.04.003

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Citations (1)

Hydrographic data along the California coast from Pigeon Point to Cape San Martin May through July 1996

Thomas A. Rago

Cape

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Tracking the Evolution of a Hydrothermal Event Plume with a RAFOS Neutrally Buoyant Drifter

Science (1998)

J. E. Lupton Edward T. Baker Newell Garfield Gary J. Massoth Richard A. Feely

The migration and evolution of a deep ocean hydrothermal event plume were tracked with a neutrally buoyant RAFOS float. The float remained entrained in the plume for 60 days, and the plume vorticity was calculated directly from the anticyclonic motion of the float. Concentrations of suspended particles, particulate iron, and dissolved manganese in the plume did not decay significantly during the 60 days, which indicates that event plumes would be easily detectable a year after formation.

Drifter

Neutral buoyancy

Panache

Tracking (education)

Particle (ecology)

Anticyclone

10.1126/science.280.5366.1052

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Citations (36)

Physical Measurementsof Water Properties Across the Mouth of the Gulf of California during April 2013 (PESCAR24)

Ashley Wheeler Thomas A. Rago Marguerite Blum Rubén Castro Tetyana Margolina

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Ocean currents across the entrance to the Gulf of California

Journal of Geophysical Research Atmospheres (1997)

Curtis A. Collins Newell Garfield A. Mascarenhas Monty Graham. Spearman Thomas A. Rago

Observations of transport and currents in April, May, and December 1992 and January 1993 were made across the entrance to the Gulf of California with an acoustically tracked dropsonde. Flow was into the gulf along Sinaloa and out of the gulf along Baja California. The transports were 5–10 Sv and the currents were deep, with 10 cm s −1 flow extending to depths greater than 1000 m. The currents were intensified in the upper 300 m. Geostrophic flows compared well with observed currents when smoothed to 2–3 times the Rossby radius. Salinity in the upper 300 m was higher on the Baja California side of the gulf, indicating modification of Subtropical Subsurface waters within the Gulf as well as the presence of surface and near‐surface gulf waters. The salinity minimum associated with California Current waters at 50 m had narrow cores that can be resolved only with closely spaced conductivity‐temperature‐depth casts. Mass and heat fluxes for the upper 300 m were estimated as 280 t s −1 and −0.1×10 12 W in May and 170 t s −1 and 2.0×10 12 W in December.

Gulf Stream

Geostrophic current

Bathythermograph

Boundary current

Temperature salinity diagrams

10.1029/97jc01302

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Citations (48)

Changes in the hydrography of Central California waters associated with the 1997–98 El Niño

Progress In Oceanography (2002)

Curtis A. Collins Carmen G. Castro H. Asanuma Thomas A. Rago Sue Han

10.1016/s0079-6611(02)00046-0

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Citations (40)

Pegasus in the Sea of Cortes area (PESCAR) Pegasus data report for PESCAR cruises in April and December 1992

Curtis A. Collins Antonio Sanchez Devora Newell Garfield Thomas A. Rago A. Mascarenhas

Abstract : Results of direct ocean current measurements at the entrance of the Gulf of California (Sea of Cortes) are presented. Velocity measurements were made using an acoustically-tracked dropsonde called Pegasus at six sites across the entrance to the Gulf. 49 Pegasus deployments were completed over the course of two oceanographic cruises in April 1992 and December 1992/January 1993. During each cruise two complete velocity transections were obtained, providing four independent realizations of the current structure. The data herein are presented by Pegasus deployment site as six sets of mean and individual velocity profiles. (AN)

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Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in June 2008

Thomas A. Rago Reiko Michisaki Baldo Marinovic Marguerite Blum Katherine E. Whitaker

10.21236/ada495643

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