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Oceanography

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Articles 151 - 180 of 308

Full-Text Articles in Oceanography and Atmospheric Sciences and Meteorology

Fall 2001, Nsu Oceanographic Center Oct 2001

Fall 2001, Nsu Oceanographic Center

Currents

No abstract provided.


Circulation, Vol. 8, No. 2, Center For Coastal Physical Oceanography, Old Dominion University, Larry P. Atkinson Jul 2001

Circulation, Vol. 8, No. 2, Center For Coastal Physical Oceanography, Old Dominion University, Larry P. Atkinson

CCPO Circulation

Summer 2001 issue of CCPO Circulation featuring article "Oceanographic Research in the Antarctic" by Larry Atkinson


Spring/Summer 2001, Nsu Oceanographic Center May 2001

Spring/Summer 2001, Nsu Oceanographic Center

Currents

No abstract provided.


Circulation, Vol. 8, No. 1, Center For Coastal Physical Oceanography, Old Dominion University, Ann E. Gargett Apr 2001

Circulation, Vol. 8, No. 1, Center For Coastal Physical Oceanography, Old Dominion University, Ann E. Gargett

CCPO Circulation

Spring 2001 issue of CCPO Circulation featuring article "Remarks from a New Arrival: Dr. Ann Gargett"


Reconstructing Basin-Scale Eulerian Velocity Fields From Simulated Drifter Data, M. Toner, A. C. Poje, A. D. Kirwan, C. K. R. T. Jones, B. L. Lipphardt, C. E. Grosch Jan 2001

Reconstructing Basin-Scale Eulerian Velocity Fields From Simulated Drifter Data, M. Toner, A. C. Poje, A. D. Kirwan, C. K. R. T. Jones, B. L. Lipphardt, C. E. Grosch

CCPO Publications

A single-layer, reduced-gravity, double-gyre primitive equation model in a 2000 km x 2000 km square domain is used to test the accuracy and sensitivity of time-dependent Eulerian velocity fields reconstructed from numerically generated drifter trajectories and climatology. The goal is to determine how much Lagrangian data is needed to capture the Eulerian velocity field within a specified accuracy. The Eulerian fields are found by projecting, on an analytic set of divergence-free basis functions, drifter data launched in the active western half of the basin supplemented by climatology in the eastern domain. The time-dependent coefficients are evaluated by least squares minimization …


Future Research Vessels, Larry P. Atkinson Jan 2001

Future Research Vessels, Larry P. Atkinson

CCPO Publications

The academic research vessel fleet in the United States is embarking on a great experiment. By 2004 we will know if SWATH vessels such as the Mlo Moana and the possible built Woods Hole Oceanographic Institution coastal SWATH have such great advantages that all future vessels will be of SWATH design. Or, we will find that the two hull forms have distinct niches and the fleet will evolve with a strategic mix. Regardless of the Mure hull form research vessels will grow in size to accommodate advanced technology and the people to run and maintain it. The research vessel will …


Circulation, Vol. 7, No. 3, Center For Coastal Physical Oceanography, Old Dominion University Oct 2000

Circulation, Vol. 7, No. 3, Center For Coastal Physical Oceanography, Old Dominion University

CCPO Circulation

Fall 2000 issue of CCPO Circulation featuring article "Worldwide Coastal Ocean Research at CCPO"


Fall 2000, Nsu Oceanographic Center Oct 2000

Fall 2000, Nsu Oceanographic Center

Currents

No abstract provided.


Spring 2000, Nsu Oceanographic Center Apr 2000

Spring 2000, Nsu Oceanographic Center

Currents

No abstract provided.


Soapbox: The Academic Research Fleet: An Exciting Time For Renewal, Larry Atkinson Jan 2000

Soapbox: The Academic Research Fleet: An Exciting Time For Renewal, Larry Atkinson

CCPO Publications

(First Paragraph) Academic research ships in the United States are the envy of many scientists around the world. A great strength of our system is the diversity of ships and operators: users have a choice, the system can change. A weakness of the system is that very diversity: sometimes it is hard for us to act together. Nevertheless, we now must act together. The vitality of the academic fleet in the coming decades is at stake. The reason is simply because many of our ships, especially in the intermediate size range, will soon reach the end of their useful life.


Measurements Of Salinity In The Coastal Ocean: A Review Of Requirements And Technologies, Catherine Woody, Eddie Shih, Jerry Miller, Thomas Royer, Larry P. Atkinson, Richard S. Moody Jan 2000

Measurements Of Salinity In The Coastal Ocean: A Review Of Requirements And Technologies, Catherine Woody, Eddie Shih, Jerry Miller, Thomas Royer, Larry P. Atkinson, Richard S. Moody

CCPO Publications

Salinity, a measure of the dissolved salts in seawater, is a fundamental property of seawater and basic to understanding biological and physical processes in coastal waters. In the open ocean long term salinity measurements are identified as necessary to understand global climate studies, hydrological cycle, and circulation. In the coastal oceans, information on salinity is critical to understanding biological effects on ecosystem function such as disease, nursery grounds, or harmful algal blooms and on physical processes such as freshwater runoff estuarine mixing, and coastal currents. While the importance of salinity is recognized, little attention has been given to making routine …


Fall 1999, Nsu Oceanographic Center Oct 1999

Fall 1999, Nsu Oceanographic Center

Currents

No abstract provided.


Summer 1999, Nsu Oceanographic Center Aug 1999

Summer 1999, Nsu Oceanographic Center

Currents

No abstract provided.


Spring 1999, Nsu Oceanographic Center Apr 1999

Spring 1999, Nsu Oceanographic Center

Currents

No abstract provided.


Winter 1999, Nsu Oceanographic Center Jan 1999

Winter 1999, Nsu Oceanographic Center

Currents

No abstract provided.


Resource Allocation And Sucrose Mobilization In Light Limited Eelgrass Zostera Marina, Teresa Alcoverro, Richard C. Zimmerman, Donald G. Kohrs, Randall S. Alberte Jan 1999

Resource Allocation And Sucrose Mobilization In Light Limited Eelgrass Zostera Marina, Teresa Alcoverro, Richard C. Zimmerman, Donald G. Kohrs, Randall S. Alberte

OES Faculty Publications

This study evaluated the ability of Zostera marina L. (eelgrass) to balance the daily photosynthetic deficit by mobilization of carbon reserves stored in below-ground tissues during a period of extreme winter light limitation. A quantitative understanding of the mobilization process and its limitations is essential to the development of robust models predicting minimum light levels required to maintain healthy seagrass populations. Plants were grown in running seawater tanks under 2 light regimes. One treatment was provided with 2 h irradiance-saturated photosynthesis (Hsat) to produce severe Light Limitation, while control plants were grown under 7 h Hsat, …


Robust Course-Boundary Extraction Algorithms For Autonomous Vehicles, Chris Roman, Charles Reinholtz Nov 1998

Robust Course-Boundary Extraction Algorithms For Autonomous Vehicles, Chris Roman, Charles Reinholtz

Graduate School of Oceanography Faculty Publications

Practical autonomous robotic vehicles require dependable methods for accurately identifying course or roadway boundaries. The authors have developed a method to reliably extract the boundary line using simple dynamic thresholding, noise filtering, and blob removal. This article describes their efforts to apply this procedure in developing an autonomous vehicle.


Circulation, Vol. 5, No. 3, Center For Coastal Physical Oceanography, Old Dominion University, Louis Codispoti, Steve Gaurin Apr 1998

Circulation, Vol. 5, No. 3, Center For Coastal Physical Oceanography, Old Dominion University, Louis Codispoti, Steve Gaurin

CCPO Circulation

Spring 1998 issue of CCPO Circulation CCPO Circulation featuring article "Steve and Lou's Excellent Antarctic Adventure: Anectodal Observations of Birds, Ocean, and Human Zaniness at the Polar Front"


Spring 1998, Nsu Oceanographic Center Apr 1998

Spring 1998, Nsu Oceanographic Center

Currents

No abstract provided.


Fall 1998, Nsu Oceanographic Center Jan 1998

Fall 1998, Nsu Oceanographic Center

Currents

No abstract provided.


Winter 1998, Nsu Oceanographic Center Jan 1998

Winter 1998, Nsu Oceanographic Center

Currents

No abstract provided.


Fall 1998, Nsu Oceanographic Center Jan 1998

Fall 1998, Nsu Oceanographic Center

Currents

No abstract provided.


Circulation, Vol. 4, No. 4, Center For Coastal Physical Oceanography, Old Dominion University Jul 1997

Circulation, Vol. 4, No. 4, Center For Coastal Physical Oceanography, Old Dominion University

CCPO Circulation

Summer 1997 issue of CCPO Circulation featuring article "HF Radar: Is It Ready for Prime Time"


Fall 1997, Nsu Oceanographic Center Jan 1997

Fall 1997, Nsu Oceanographic Center

Currents

No abstract provided.


Winter 1997, Nsu Oceanographic Center Jan 1997

Winter 1997, Nsu Oceanographic Center

Currents

No abstract provided.


Summer 1997, Nsu Oceanographic Center Jan 1997

Summer 1997, Nsu Oceanographic Center

Currents

No abstract provided.


Spring 1997, Nsu Oceanographic Center Jan 1997

Spring 1997, Nsu Oceanographic Center

Currents

No abstract provided.


Circulation, Fall 1996, Center For Coastal Physical Oceanography, Old Dominion University Oct 1996

Circulation, Fall 1996, Center For Coastal Physical Oceanography, Old Dominion University

CCPO Circulation

Fall 1996 issue of CCPO Circulation featuring article "Antarctic Continental Shelves Are Strange And Unique"


Modeling Nutrient And Plankton Processes In The California Coastal Transition Zone: 3. Lagrangian Drifters, J. R. Moisan, Eileen E. Hofmann Oct 1996

Modeling Nutrient And Plankton Processes In The California Coastal Transition Zone: 3. Lagrangian Drifters, J. R. Moisan, Eileen E. Hofmann

CCPO Publications

Two types of numerical Lagrangian drifter experiments were conducted, using a set of increasingly complex and sophisticated models, to investigate the processes associated with the plankton distributions in the California coastal transition zone (CTZ). The first experiment used a one-dimensional (1-D; vertical) time-dependent physical-bio-optical model, which contained a nine-component food web. Vertical velocities, along the track of simulated Lagrangian drifters, derived from a three-dimensional (3-D), primitive equation circulation model developed to simulate the flow observed within the CTZ; were used to parameterize the upwelling and downwelling processes. The second experiment used 880 simulated Lagrangian drifters from a 3-D primitive equation …


Circulation, Winter 1996, Center For Coastal Physical Oceanography, Old Dominion University Jan 1996

Circulation, Winter 1996, Center For Coastal Physical Oceanography, Old Dominion University

CCPO Circulation

Winter 1996 issue of CCPO Circulation featuring article "The Ocean Mesoscale"