John Warner, PhD
John Warner is a research oceanographer with the Woods Hole Coastal and Marine Science Center Coastal and Estuarine Dynamics Group in the US Geological Survey. He has worked for the USGS for over 20 years and focuses on coastal ocean processes with an emphasis on sediment transport using field observations and numerical modeling. He is the lead developer of an open-source and community developed Coupled-Ocean-Atmosphere-Wave-Sediment Transport (COAWST) numerical modeling system, which has evolved over two decades to combine publicly developed ocean, wave, atmosphere, and sediment models.
I have been working in the field of numerical modeling for estuarine, coastal, and sediment transport processes for over 25 years. I specialize in the development of coupled modeling systems that allow interaction between individual earth system model components. These advancements have led to greater understanding of physical connections between the ocean, waves, and the atmosphere.
Professional Experience
US Geological Survey, Woods Hole, MA Research Oceanographer 2003-present
US Geological Survey, Woods Hole, MA Postdoctoral Scholar 2001-2003
University of California, Davis, CA Graduate Research Assistant 1996 – 2000
Education and Certifications
Ph.D., Civil & Environmental Engineering, Minor in Numerical Methods, December 2000
University of California, Davis
Dissertation: Barotropic and Baroclinic Convergence Zones in Tidal Channels
Comm
Science and Products
Implementation of the vortex force formalism in the coupled ocean-atmosphere-wave-sediment transport (COAWST) modeling system for inner shelf and surf zone applications
Modeling transport and deposition of the Mekong River sediment
Ocean-atmosphere dynamics during Hurricane Ida and Nor'Ida: An application of the coupled ocean-;atmosphere–wave–sediment transport (COAWST) modeling system
Ocean-atmosphere dynamics during Hurricane Ida and Nor'Ida: An application of the coupled ocean-atmosphere-wave-sediment transport (COAWST) modeling system
Wave-current interaction in Willapa Bay
Methodology for prediction of rip currents using a three-dimensional numerical, coupled, wave current model
A nearshore processes field experiment at Cape Hatteras, North Carolina, U.S.A.
Implementation and modification of a three-dimensional radiation stress formulation for surf zone and rip-current applications
Wave-current interaction in Willapa Bay
Carolinas Coastal Change Processes Project data report for observations near Diamond Shoals, North Carolina, January-May 2009
Oligocene and Miocene arc volcanism in northeastern California: evidence for post-Eocene segmentation of the subducting Farallon plate
2-D inner-shelf current observations from a single VHF WEllen RAdar (WERA) station
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Implementation of the vortex force formalism in the coupled ocean-atmosphere-wave-sediment transport (COAWST) modeling system for inner shelf and surf zone applications
The coupled ocean-atmosphere-wave-sediment transport modeling system (COAWST) enables simulations that integrate oceanic, atmospheric, wave and morphological processes in the coastal ocean. Within the modeling system, the three-dimensional ocean circulation module (ROMS) is coupled with the wave generation and propagation model (SWAN) to allow full integration of the effect of waves on circulationAuthorsNirnimesh Kumar, George Voulgaris, John C. Warner, Maitane OlabarrietaModeling transport and deposition of the Mekong River sediment
A Coupled Wave–Ocean–SedimentTransport Model was used to hindcast coastal circulation and fine sedimenttransport on the Mekong shelf in southeastern Asian in 2005. Comparisons with limited observations showed that the model simulation captured the regional patterns and temporal variability of surface wave, sea level, and suspended sediment concentration reasonably well. Significant seasonality inAuthorsZuo Xue, Ruoying He, J. Paul Liu, John C. WarnerOcean-atmosphere dynamics during Hurricane Ida and Nor'Ida: An application of the coupled ocean-;atmosphere–wave–sediment transport (COAWST) modeling system
The coupled ocean–atmosphere–wave–sediment transport (COAWST) modeling system was used to investigate atmosphere–ocean–wave interactions in November 2009 during Hurricane Ida and its subsequent evolution to Nor'Ida, which was one of the most costly storm systems of the past two decades. One interesting aspect of this event is that it included two unique atmospheric extreme conditions, a hurricaneAuthorsMaitane Olabarrieta, John C. Warner, Brandy N. Armstrong, Joseph B. Zambon, Ruoying HeOcean-atmosphere dynamics during Hurricane Ida and Nor'Ida: An application of the coupled ocean-atmosphere-wave-sediment transport (COAWST) modeling system
The coupled ocean–atmosphere–wave–sediment transport (COAWST) modeling system was used to investigate atmosphere–ocean–wave interactions in November 2009 during Hurricane Ida and its subsequent evolution to Nor’Ida, which was one of the most costly storm systems of the past two decades. One interesting aspect of this event is that it included two unique atmospheric extreme conditions, a hurricaneAuthorsMaitane Olabarrieta, John C. Warner, Brandy N. Armstrong, Joseph B. Zambon, Ruoying HeWave-current interaction in Willapa Bay
This paper describes the importance of wave-current interaction in an inlet-estuary system. The three-dimensional, fully coupled, Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system was applied in Willapa Bay (Washington State) from 22 to 29 October 1998 that included a large storm event. To represent the interaction between waves and currents, the vortex-force method was useAuthorsMaitane Olabarrieta, John C. Warner, Nirnimesh KumarMethodology for prediction of rip currents using a three-dimensional numerical, coupled, wave current model
Rip current currents constitute one of the most common hazards in the nearshore that threaten the lives of the unaware public that makes recreational use of the coastal zone. Society responds to this danger through a number of measures that include: (a) the deployment of trained lifeguards; (b) public education related to the hidden hazards of the nearshore; and (c) establishment of warning systemAuthorsGeorge Voulgaris, Nirnimesh Kumar, John C. WarnerA nearshore processes field experiment at Cape Hatteras, North Carolina, U.S.A.
A month-long field experiment focused on the nearshore hydrodynamics of Diamond Shoals adjacent to Cape Hatteras Point, North Carolina, was conducted in February 2010. The objectives of this multi-institutional experiment were to test hypotheses related to Diamond Shoals as a sink in the regional sediment budget and to provide data for evaluating numerical models. The experiment included in-situ iAuthorsJeffrey H. List, John C. Warner, E. Robert Thieler, Kevin Haas, George Voulgaris, Jesse E. McNinch, Katherine L. BrodieImplementation and modification of a three-dimensional radiation stress formulation for surf zone and rip-current applications
Regional Ocean Modeling System (ROMS v 3.0), a three-dimensional numerical ocean model, was previously enhanced for shallow water applications by including wave-induced radiation stress forcing provided through coupling to wave propagation models (SWAN, REF/DIF). This enhancement made it suitable for surf zone applications as demonstrated using examples of obliquely incident waves on a planar beacAuthorsN. Kumar, G. Voulgaris, John C. WarnerWave-current interaction in Willapa Bay
This paper describes the importance of wave-current interaction in an inlet-estuary system. The three-dimensional, fully coupled, Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system was applied in Willapa Bay (Washington State) from 22 to 29 October 1998 that included a large storm event. To represent the interaction between waves and currents, the vortex-force method was useAuthorsMaitane Olabarrieta, John C. Warner, Nirnimesh KumarCarolinas Coastal Change Processes Project data report for observations near Diamond Shoals, North Carolina, January-May 2009
This Open-File Report provides information collected for an oceanographic field study that occurred during January - May 2009 to investigate processes that control the sediment transport dynamics at Diamond Shoals, North Carolina. The objective of this report is to make the data available in digital form and to provide information to facilitate further analysis of the data. The report describes thAuthorsBrandy N. Armstrong, John C. Warner, George Voulgaris, Jeffrey H. List, E. Robert Thieler, Marinna A. Martini, Ellyn T. MontgomeryOligocene and Miocene arc volcanism in northeastern California: evidence for post-Eocene segmentation of the subducting Farallon plate
The Warner Range in northeastern California exposes a section of Tertiary rocks over 3 km thick, offering a unique opportunity to study the long-term history of Cascade arc volcanism in an area otherwise covered by younger volcanic rocks. The oldest locally sourced volcanic rocks in the Warner Range are Oligocene (28–24 Ma) and include a sequence of basalt and basaltic andesite lava flows overlainAuthorsJ.P. Colgan, A.E. Egger, D. A. John, B. Cousens, R. J. Fleck, C.D. Henry2-D inner-shelf current observations from a single VHF WEllen RAdar (WERA) station
The majority of High Frequency (HF) radars used worldwide operate at medium to high frequencies (8 to 30 MHz) providing spatial resolutions ranging from 3 to 1.5 km and ranges from 150 to 50 km. This paper presents results from the deployment of a single Very High Frequency (VHF, 48 MHz) WEllen RAdar (WERA) radar with spatial resolution of 150 m and range 10-15 km, used in the nearshore off Cape HAuthorsG. Voulgaris, N. Kumar, K.-W. Gurgel, John C. Warner, Jeffrey H. List - Web Tools
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