Richard P Signell, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 90
Implementing the National Integrated Ocean Observing System (IOOS): from the federal agency perspective Implementing the National Integrated Ocean Observing System (IOOS): from the federal agency perspective
The national Integrated Ocean Observing System (IOOS??) is responsible for coordinating a network of people, resources, and technology to disseminate continuous data, information, models, products, and services made throughout our coastal waters, Great Lakes, and the oceans. There are many components of the IOOS-including government, academic, and private entities. This article will...
Authors
R. Bassett, R. Beard, W. Burnett, R. Crout, B. Griffith, R. Jensen, R. Signell
Building the IOOS data management subsystem Building the IOOS data management subsystem
We discuss progress to date and plans for the Integrated Ocean Observing System (IOOS??) Data Management and Communications (DMAC) subsystem. We begin by presenting a conceptual architecture of IOOS DMAC. We describe work done as part of a 3-year pilot project known as the Data Integration Framework and the subsequent assessment of lessons learned. We present work that has been...
Authors
J. de La Beaujardière, R. Mendelssohn, C. Ortiz, R. Signell
Ocean and coastal data management Ocean and coastal data management
We introduce data management concepts, including what we mean by "data" and its "management," sources of data, interoperability, and data geometry. We then discuss various components of a data management system. Finally, we summarize some existing ocean and coastal data management efforts. We make specific recommendations throughout the paper. We are generally optimistic that ocean and...
Authors
Jeff de La Beaujardiere, C Beegle-Krause, Luis Bermudez, Steven Hankin, Lisa Hazard, Eoin Howlett, Steven Le, Roger Proctor, Richard Signell, Derrick Snowden, Julie Thomas
NetCDF-CF-OPeNDAP: Standards for ocean data interoperability and object lessons for community data standards processes NetCDF-CF-OPeNDAP: Standards for ocean data interoperability and object lessons for community data standards processes
It is generally recognized that meeting society's emerging environmental science and management needs will require the marine data community to provide simpler, more effective and more interoperable access to its data. There is broad agreement, as well, that data standards are the bedrock upon which interoperability will be built. The path that would bring the marine data community to...
Authors
Steven Hankin, Jon Blower, Thierry Carval, Kenneth Casey, Craig Donlon, Olivier Lauret, Thomas Loubrieu, Ashwanth Srinivasan, Joaquin Trinanes, Oystein Godoy, Roy Mendelssohn, Richard Signell, Jeff de La Beaujardiere, Peter Cornillon, Frederique Blanc, Russ Rew, Jack Harlan
Connections Among the Spatial and Temporal Structures in Tidal Currents, Internal Bores, and Surficial Sediment Distributions Over the Shelf off Palos Verdes, California Connections Among the Spatial and Temporal Structures in Tidal Currents, Internal Bores, and Surficial Sediment Distributions Over the Shelf off Palos Verdes, California
The topography of the Continental Shelf in the central portion of the Southern California Bight has rapid variations over relatively small spatial scales. The width of the shelf off the Palos Verdes peninsula, just northwest of Los Angeles, California, is only 1 to 3 km. About 7 km southeast of the peninsula, the shelf within San Pedro Bay widens to about 20 km. In 2000, the Los Angeles...
Authors
Marlene Noble, Kurt J. Rosenberger, Jingping Xu, Richard Signell, Alex Steele
Deposition and flux of sediment from the Po River, Italy: An idealized and wintertime numerical modeling study Deposition and flux of sediment from the Po River, Italy: An idealized and wintertime numerical modeling study
Recent studies of sediment dynamics and clinoform development in the northern Adriatic Sea focused on winter 2002-2003 and provided the data and motivation for development of a detailed sediment-transport model for the area near the Po River delta. We used both idealized test cases and more realistic simulations to improve our understanding of seasonal sediment dynamics there. We also...
Authors
A.J. Bever, C. Harris, C. Sherwood, R. Signell
Variational analysis of drifter positions and model outputs for the reconstruction of surface currents in the central Adriatic during fall 2002 Variational analysis of drifter positions and model outputs for the reconstruction of surface currents in the central Adriatic during fall 2002
In this paper we present an application of a variational method for the reconstruction of the velocity field in a coastal flow in the central Adriatic Sea, using in situ data from surface drifters and outputs from the ROMS circulation model. The variational approach, previously developed and tested for mesoscale open ocean flows, has been improved and adapted to account for...
Authors
V. Taillandier, A. Griffa, P.-M. Poulain, R. Signell, J. Chiggiato, S. Carniel
Development of a three-dimensional, regional, coupled wave, current, and sediment-transport model Development of a three-dimensional, regional, coupled wave, current, and sediment-transport model
We are developing a three-dimensional numerical model that implements algorithms for sediment transport and evolution of bottom morphology in the coastal-circulation model Regional Ocean Modeling System (ROMS v3.0), and provides a two-way link between ROMS and the wave model Simulating Waves in the Nearshore (SWAN) via the Model-Coupling Toolkit. The coupled model is applicable for...
Authors
J.C. Warner, C. Sherwood, R. Signell, C. Harris, H.G. Arango
Collaboration tools and techniques for large model datasets Collaboration tools and techniques for large model datasets
In MREA and many other marine applications, it is common to have multiple models running with different grids, run by different institutions. Techniques and tools are described for low-bandwidth delivery of data from large multidimensional datasets, such as those from meteorological and oceanographic models, directly into generic analysis and visualization tools. Output is stored using...
Authors
R. Signell, S. Carniel, J. Chiggiato, I. Janekovic, J. Pullen, C. Sherwood
Sediment dispersal in the northwestern Adriatic Sea Sediment dispersal in the northwestern Adriatic Sea
Sediment dispersal in the Adriatic Sea was evaluated using coupled three-dimensional circulation and sediment transport models, representing conditions from autumn 2002 through spring 2003. The calculations accounted for fluvial sources, resuspension by waves and currents, and suspended transport. Sediment fluxes peaked during southwestward Bora wind conditions that produced energetic...
Authors
C. Harris, C. Sherwood, R. Signell, A.J. Bever, J.C. Warner
Ocean forecasting in terrain-following coordinates: Formulation and skill assessment of the Regional Ocean Modeling System Ocean forecasting in terrain-following coordinates: Formulation and skill assessment of the Regional Ocean Modeling System
Systematic improvements in algorithmic design of regional ocean circulation models have led to significant enhancement in simulation ability across a wide range of space/time scales and marine system types. As an example, we briefly review the Regional Ocean Modeling System, a member of a general class of three-dimensional, free-surface, terrain-following numerical models. Noteworthy...
Authors
D.B. Haidvogel, H. Arango, W.P. Budgell, B.D. Cornuelle, E. Curchitser, Lorenzo Di, K. Fennel, W.R. Geyer, A.J. Hermann, L. Lanerolle, J. Levin, J.C. McWilliams, A.J. Miller, A.M. Moore, T.M. Powell, A.F. Shchepetkin, C. Sherwood, R. Signell, J.C. Warner, J. Wilkin
Surface drift prediction in the Adriatic Sea using hyper-ensemble statistics on atmospheric, ocean and wave models: Uncertainties and probability distribution areas Surface drift prediction in the Adriatic Sea using hyper-ensemble statistics on atmospheric, ocean and wave models: Uncertainties and probability distribution areas
Despite numerous and regular improvements in underlying models, surface drift prediction in the ocean remains a challenging task because of our yet limited understanding of all processes involved. Hence, deterministic approaches to the problem are often limited by empirical assumptions on underlying physics. Multi-model hyper-ensemble forecasts, which exploit the power of an optimal...
Authors
M. Rixen, E. Ferreira-Coelho, R. Signell
Science and Products
Filter Total Items: 90
Implementing the National Integrated Ocean Observing System (IOOS): from the federal agency perspective Implementing the National Integrated Ocean Observing System (IOOS): from the federal agency perspective
The national Integrated Ocean Observing System (IOOS??) is responsible for coordinating a network of people, resources, and technology to disseminate continuous data, information, models, products, and services made throughout our coastal waters, Great Lakes, and the oceans. There are many components of the IOOS-including government, academic, and private entities. This article will...
Authors
R. Bassett, R. Beard, W. Burnett, R. Crout, B. Griffith, R. Jensen, R. Signell
Building the IOOS data management subsystem Building the IOOS data management subsystem
We discuss progress to date and plans for the Integrated Ocean Observing System (IOOS??) Data Management and Communications (DMAC) subsystem. We begin by presenting a conceptual architecture of IOOS DMAC. We describe work done as part of a 3-year pilot project known as the Data Integration Framework and the subsequent assessment of lessons learned. We present work that has been...
Authors
J. de La Beaujardière, R. Mendelssohn, C. Ortiz, R. Signell
Ocean and coastal data management Ocean and coastal data management
We introduce data management concepts, including what we mean by "data" and its "management," sources of data, interoperability, and data geometry. We then discuss various components of a data management system. Finally, we summarize some existing ocean and coastal data management efforts. We make specific recommendations throughout the paper. We are generally optimistic that ocean and...
Authors
Jeff de La Beaujardiere, C Beegle-Krause, Luis Bermudez, Steven Hankin, Lisa Hazard, Eoin Howlett, Steven Le, Roger Proctor, Richard Signell, Derrick Snowden, Julie Thomas
NetCDF-CF-OPeNDAP: Standards for ocean data interoperability and object lessons for community data standards processes NetCDF-CF-OPeNDAP: Standards for ocean data interoperability and object lessons for community data standards processes
It is generally recognized that meeting society's emerging environmental science and management needs will require the marine data community to provide simpler, more effective and more interoperable access to its data. There is broad agreement, as well, that data standards are the bedrock upon which interoperability will be built. The path that would bring the marine data community to...
Authors
Steven Hankin, Jon Blower, Thierry Carval, Kenneth Casey, Craig Donlon, Olivier Lauret, Thomas Loubrieu, Ashwanth Srinivasan, Joaquin Trinanes, Oystein Godoy, Roy Mendelssohn, Richard Signell, Jeff de La Beaujardiere, Peter Cornillon, Frederique Blanc, Russ Rew, Jack Harlan
Connections Among the Spatial and Temporal Structures in Tidal Currents, Internal Bores, and Surficial Sediment Distributions Over the Shelf off Palos Verdes, California Connections Among the Spatial and Temporal Structures in Tidal Currents, Internal Bores, and Surficial Sediment Distributions Over the Shelf off Palos Verdes, California
The topography of the Continental Shelf in the central portion of the Southern California Bight has rapid variations over relatively small spatial scales. The width of the shelf off the Palos Verdes peninsula, just northwest of Los Angeles, California, is only 1 to 3 km. About 7 km southeast of the peninsula, the shelf within San Pedro Bay widens to about 20 km. In 2000, the Los Angeles...
Authors
Marlene Noble, Kurt J. Rosenberger, Jingping Xu, Richard Signell, Alex Steele
Deposition and flux of sediment from the Po River, Italy: An idealized and wintertime numerical modeling study Deposition and flux of sediment from the Po River, Italy: An idealized and wintertime numerical modeling study
Recent studies of sediment dynamics and clinoform development in the northern Adriatic Sea focused on winter 2002-2003 and provided the data and motivation for development of a detailed sediment-transport model for the area near the Po River delta. We used both idealized test cases and more realistic simulations to improve our understanding of seasonal sediment dynamics there. We also...
Authors
A.J. Bever, C. Harris, C. Sherwood, R. Signell
Variational analysis of drifter positions and model outputs for the reconstruction of surface currents in the central Adriatic during fall 2002 Variational analysis of drifter positions and model outputs for the reconstruction of surface currents in the central Adriatic during fall 2002
In this paper we present an application of a variational method for the reconstruction of the velocity field in a coastal flow in the central Adriatic Sea, using in situ data from surface drifters and outputs from the ROMS circulation model. The variational approach, previously developed and tested for mesoscale open ocean flows, has been improved and adapted to account for...
Authors
V. Taillandier, A. Griffa, P.-M. Poulain, R. Signell, J. Chiggiato, S. Carniel
Development of a three-dimensional, regional, coupled wave, current, and sediment-transport model Development of a three-dimensional, regional, coupled wave, current, and sediment-transport model
We are developing a three-dimensional numerical model that implements algorithms for sediment transport and evolution of bottom morphology in the coastal-circulation model Regional Ocean Modeling System (ROMS v3.0), and provides a two-way link between ROMS and the wave model Simulating Waves in the Nearshore (SWAN) via the Model-Coupling Toolkit. The coupled model is applicable for...
Authors
J.C. Warner, C. Sherwood, R. Signell, C. Harris, H.G. Arango
Collaboration tools and techniques for large model datasets Collaboration tools and techniques for large model datasets
In MREA and many other marine applications, it is common to have multiple models running with different grids, run by different institutions. Techniques and tools are described for low-bandwidth delivery of data from large multidimensional datasets, such as those from meteorological and oceanographic models, directly into generic analysis and visualization tools. Output is stored using...
Authors
R. Signell, S. Carniel, J. Chiggiato, I. Janekovic, J. Pullen, C. Sherwood
Sediment dispersal in the northwestern Adriatic Sea Sediment dispersal in the northwestern Adriatic Sea
Sediment dispersal in the Adriatic Sea was evaluated using coupled three-dimensional circulation and sediment transport models, representing conditions from autumn 2002 through spring 2003. The calculations accounted for fluvial sources, resuspension by waves and currents, and suspended transport. Sediment fluxes peaked during southwestward Bora wind conditions that produced energetic...
Authors
C. Harris, C. Sherwood, R. Signell, A.J. Bever, J.C. Warner
Ocean forecasting in terrain-following coordinates: Formulation and skill assessment of the Regional Ocean Modeling System Ocean forecasting in terrain-following coordinates: Formulation and skill assessment of the Regional Ocean Modeling System
Systematic improvements in algorithmic design of regional ocean circulation models have led to significant enhancement in simulation ability across a wide range of space/time scales and marine system types. As an example, we briefly review the Regional Ocean Modeling System, a member of a general class of three-dimensional, free-surface, terrain-following numerical models. Noteworthy...
Authors
D.B. Haidvogel, H. Arango, W.P. Budgell, B.D. Cornuelle, E. Curchitser, Lorenzo Di, K. Fennel, W.R. Geyer, A.J. Hermann, L. Lanerolle, J. Levin, J.C. McWilliams, A.J. Miller, A.M. Moore, T.M. Powell, A.F. Shchepetkin, C. Sherwood, R. Signell, J.C. Warner, J. Wilkin
Surface drift prediction in the Adriatic Sea using hyper-ensemble statistics on atmospheric, ocean and wave models: Uncertainties and probability distribution areas Surface drift prediction in the Adriatic Sea using hyper-ensemble statistics on atmospheric, ocean and wave models: Uncertainties and probability distribution areas
Despite numerous and regular improvements in underlying models, surface drift prediction in the ocean remains a challenging task because of our yet limited understanding of all processes involved. Hence, deterministic approaches to the problem are often limited by empirical assumptions on underlying physics. Multi-model hyper-ensemble forecasts, which exploit the power of an optimal...
Authors
M. Rixen, E. Ferreira-Coelho, R. Signell