Download or read book Coupling a finite element storm surge model of the North Carolina sounds with operational ocean and weather prediction models written by Yuji Funakoshi and published by . This book was released on 2010 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Assessment of Storm Surge Modeling written by and published by . This book was released on 1980 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Numerical Storm Surge Models written by United States. Army. Corps of Engineers. Committee on Tidal Hydraulics and published by . This book was released on 1980 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Wind Analyses and Storm surge Effects of Hurricane Emily on the Outer Banks of North Carolina written by Andrew W. Garcia and published by . This book was released on 1995 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coastal Flooding Storm Surge Model Methodology written by and published by . This book was released on 1981 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis Implementation and Verification of a Discontinuous Galerkin Method for Prediction of Storm Surges and Coastal Deformation written by Christopher Michael Mirabito and published by . This book was released on 2011 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Storm surge, the pileup of seawater occurring as a result of high surface stresses and strong currents generated by extreme storm events such as hurricanes, is known to cause greater loss of life than these storms' associated winds. For example, inland flooding from the storm surge along the Gulf Coast during Hurricane Katrina killed hundreds of people. Previous storms produced even larger death tolls. Simultaneously, dune, barrier island, and channel erosion taking place during a hurricane leads to the removal of major flow controls, which significantly affects inland inundation. Also, excessive sea bed scouring around pilings can compromise the structural integrity of bridges, levees, piers, and buildings. Modeling these processes requires tightly coupling a bed morphology equation to the shallow water equations (SWE). Discontinuous Galerkin finite element methods (DGFEMs) are a natural choice for modeling this coupled system, given the need to solve these problems on large, complicated, unstructured computational meshes, as well as the desire to implement hp-adaptivity for capturing the dynamic features of the solution. Comprehensive modeling of these processes in the coastal zone presents several challenges and open questions. Most existing hydrodynamic models use a fixed-bed approach; the bottom is not allowed to evolve in response to the fluid motion. With respect to movable-bed models, there is no single, generally accepted mathematical model in use. Numerical challenges include coupling models of processes that exhibit disparate time scales during fair weather, but possibly similar time scales during intense storms. The main goals of this dissertation include implementing a robust, efficient, tightly-coupled morphological model using the local discontinuous Galerkin (LDG) method within the existing Advanced Circulation (ADCIRC) modeling framework, performing systematic code and model verification (using test cases with known solutions, proven convergence rates, or well-documented physical behavior), analyzing the stability and accuracy of the implemented numerical scheme by way of a priori error estimates, and ultimately laying some of the necessary groundwork needed to simultaneously model storm surges and bed morphodynamics during extreme storm events.

Download or read book ADCIRC An Advanced Three Dimensional Circulation Model for Shelves Coasts and Estuaries Report 4 Hurricane Storm Surge Modeling Using Large Domains written by and published by . This book was released on 1994 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report investigates the use of large domains in modeling hurricane storm surge. The hydrodynamic model used in this study is the ADCJIRC-2DDI code, which is based on a two-dimensional, depth-integrated, finite element formulation. Hurricane wind stress and pressure forcing from Hurricane Kate are produced by the HURWIN code, a vertically averaged planetary boundary layer wind model. Storm surge predictions are conducted over three computational domains, which have varying sizes. The smallest domain covers the continental shelf, another domain includes the Gulf of Mexico, and the final domain is quite large and extends into the deep ocean. Domains over the continental shelf and the Gulf of Mexico are shown to be inadequate for modeling hurricane storm surge. On the contrary, a large domain, which includes the Western North Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico, is optimal for use with storm surge models. The influence of an inverted barometer condition applied at the open boundary is examined for each computational domain. Circulation model, Numerical model, Finite element method, Storm surge model, Hurricane surge model, Two-dimensional model, Hydrodynamic model.

Download or read book An Open coast Mathematical Storm Surge Model with Coastal Flooding for Louisiana written by John J. Wanstrath and published by . This book was released on 1978 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ADCIRC written by and published by . This book was released on 1994 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predictive Hurricane Storm Surge Modeling Through Use of a Large Scale Locally Refined Finite Element Model written by Jesse C. Feyen and published by . This book was released on 2005 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Storm Surge Measurements and Computations for Hurricane David written by Gary Lanier Howell and published by . This book was released on 1982 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Storm Surge Analysis written by United States. Army. Corps of Engineers and published by . This book was released on 1986 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Preliminary View of Storm Surges Before and After Storm Modifications for Alongshore moving Storms written by Chester P. Jelesnianski and published by . This book was released on 1975 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical means are used to compute storm surges (meteorological tides) in a standard basin of constant slope, bounded by a straightline coast. All storm tracks in this study are constrained to lie parallel to the coast; the storm can lie at any distance from the coast and travel with any speed, but once set, the distance and speed are invariant with time. Two driving forces, wind stress and atmospheric pressure gradient, are used to generate surges; they are derived from an analytic wind profile. The model storm is described with two invariant parameters, storm size and difference between ambient and central pressure of the storm.

Download or read book Optimization of an Unstructured Finite Element Mesh for Tide and Storm Surge Modeling Applications in the Western North Atlantic Ocean written by Satoshi Kojima and published by . This book was released on 2005 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The error analysis establishes the 53K finite element mesh as optimal when compared to the 333K, 95K, and 60K meshes. However, its required time step of less than ten seconds constrains its application. Therefore, the 53K mesh is manually edited to uphold accurate simulation results and to produce a more computationally efficient mesh, by increasing its time step, so that it can be applied to forecast tide and storm surge in the Western North Atlantic Ocean on a real-time basis.

Download or read book Development of Large scale Unstructured Grid Storm Surge and Sub grid Inundation Models for Coastal Applications written by Zhuo Liu and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Storm surge and inundation induced by hurricanes and nor'easters pose a profound threat to coastal communities and ecosystems. These storm events with powerful winds, heavy precipitation, and strong wind waves can lead to major flooding for cities along U.S. Coasts. Recent examples of Hurricane Irene (2011) in North Carolina and Virginia and Hurricane Sandy (2012) in New York City not only demonstrated the immense destructive power by the storms, but also revealed the obvious, crucial need for improved forecasting of storm tide and inundation. In part I, a large-scale unstructured-grid 3-D barotropic storm tide model SCHISM (Semi-implicit Cross-scale Hydroscience Integrated System Model) is developed with open ocean boundary aligning along the 60-degree West longitude to catch most Atlantic hurricanes that may make landfall along U.S. East and Gulf Coasts. The model, driven by high-resolution NAM (North America Mesoscale) and ECMWF (European Centre for Medium-Range Weather Forecasts) atmospheric fields, was coupled with Wind Wave Model (WWMIII) to account for wave effects, and used to simulate storm surge in 3-D barotropic mode rather than the traditional 2-D vertical average mode. For Hurricane Sandy, the fully coupled wave-current interaction 3-D model using ECMWF atmospheric forcing performs the best. The storm tide results match well with observation at all nine NOAA tidal gauges along the East Coast. The maximum total water level in New York City, is accurately simulated with absolute error of amplitude less than 8 cm, and timing difference within 10 minutes. The scenarios of "2-D" versus "3-D" and "with" versus "without" wind wave model were compared and discussed in details. Overall, the wave contribution amounts to 5-10% of surge elevation during the event. Also, the large-scale model with similar setup is applied to hindcasting storm tide during Hurricane Irene and the results are excellent when compared with observed water level along Southeast Coast and inside Chesapeake Bay. in part II, a high-resolution sub-grid inundation model ELCIRC-sub (Eulerian-Lagrangian CIRCulation) was developed from the original finite-volume-based ELCIRC model. It utilized the sub-grid method for imbedding high-resolution topography/bathymetry data into the traditional model grid and delivering the inundation simulation on the street level scale. The ELCIRC-sub contains an efficient non-linear solver to increase the accuracy and was executed in the MPI (Message Passing Interface) parallel computing platform to vastly enlarge the water shed coverage, and to expand the numbers of sub-grids allowed. The ELCIRC-sub is first validated with a wetting/drying analytic solution and then applied in New York City for Hurricane Sandy (2012). Temporal comparisons with NOAA and USGS water level gauges showed excellent performance with an average error on the order of 10 cm. It accurately captured the highest surge (during Hurricane Sandy) at Kings Point on both maximum surge height and the explosive surge profile. Spatial comparisons of the modeled peak water level at 80 locations around New York City showed an average error less than 13 cm. The modeled maximum modeled inundation extent also matched well with 80% of the FEMA flooding map. in terms of robustness and efficiency for practical application, ELCIRC-sub surpasses the prototype model UnTRIM2.

Download or read book Coupling of Wave and Circulation Models for Predicting Storm induced Waves Surges and Coastal Inundation written by Yunfeng Chen and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study is to apply coupled systems for wave-current interaction for use in simulating and predicting storm-induced surges, waves and coastal inundation. Two coupled systems are used. One includes model components: ROMS (a three-dimensional ocean model) and SWAN (a third-generation numerical wave model). The other system is NearCoM (a nearshore community model) which couples SWAN and SHORECIRC (a quasi-3D nearshore circulation model). A coupled model system including ROMS and SWAN is based on MCT implementation. It is applied to Delaware Bay for wave and current simulation. The computational domain is a regional ocean scale domain covering the entire Delaware Bay and adjacent shelf region. Numerical results from the coupled system are compared with available wave and current data obtained from Delaware Bay Observing System (DBOS). Comparisons show good agreement between model results and observations. Strong tidal modulations of surface waves are identified in both model results and measured data. A nearshore community model system NearCoM couples SWAN and SHORECIRC models based on the Master Program implementation. The system is used in a series of numerical experiments that are carried out in an idealized, alongshore uniform domain, which includes a planar beach, land and shelf with constant slopes, in order to explore the response of storm-induced inundation, storm surges as well as waves to wave forcing and to different cyclone parameters through atmospheric forcing. Four sets of experiments are conducted to investigate four factors, radium of maximum wind, track of tropical cyclone, maximum wind speed as well as translation speed, respectively, in affecting storm surges and coastal inundation. Each experiment is conducted twice (with and without wave effect in the model system) to examine the wave setup effect. Coastal inundation, storm surge and wave are sensitive to all four factors. Wave setup always results in larger storm surge and inundation area.