MODEL RESPONSE SENSITIVITY TO WAVES, NONLINEAR ADVECTION, AND BOTTOM FRICTION Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30, 2013 1 Patrick Corbitt.

Slides:

Advertisements

Similar presentations

INWAVE: THE INFRAGRAVITY WAVE DRIVER OF THE COAWST SYSTEM

Advertisements

Modeling to Revise Coastal Inundation and Flooding Estimates in Georgia and Northeast Florida Association of State Flood Plain Managers Conference May.

The Quasi-Geostrophic Omega Equation (without friction and diabatic terms) We will now develop the Trenberth (1978)* modification to the QG Omega equation.

Development and Implementation of Depth Dependent Wave Forcing and Stokes Drift into Coupled 3D PADCIRC/PUNSWAN Joshua Todd Coastal Engineering Department.

CHAPTER 5: PREDICTING STORM SURGE LESSONS FROM HURRICANE IKE.

Circulation in the atmosphere

Factors modifying the framework established: Tides Atmospheric Forcing - wind, barometric pressure River Discharge Bathymetry Morphology.

Tides Dynamic Theory of Tides Ideal Open Ocean Tide Theory Adds in Coriolis effect and actual depth and shape of ocean basins Tidal energy reflects of.

Ocean & Atmospheric circulation redux 1) Unequal planetary heating creates pressure gradients which make winds blow on ocean surface in trade-wind & westerly.

Linear Wave Theory fundamental description: L - wave length H - wave height T - period d - water depth Shore Protection Manual, 1984 Overview of Waves.

General Circulation and Climate Zones Martin Visbeck DEES, Lamont-Doherty Earth Observatory

STORM SURGE. Composed of several attributes: A)Barometric – Coastal water response to low pressure at center of storm B) Wind stress – frictional drag.

ATMOSPHERIC CIRCULATION. Atmospheric and Oceanic Circulation Wind Essentials Driving Forces Within the Atmosphere Atmospheric Patterns of Motion Oceanic.

The Ocean General Circulation (satellite). Mean Circulation in the Ocean Gulf Stream.

Institute of Oceanogphy Gdańsk University Jan Jędrasik The Hydrodynamic Model of the Southern Baltic Sea.

The General Circulation of the Atmosphere Background and Theory.

Naval Architecture & Marine Engineering University of Michigan – College of Engineering The Marine Environment.

An Assimilating Tidal Model for the Bering Sea Mike Foreman, Josef Cherniawsky, Patrick Cummins Institute of Ocean Sciences, Sidney BC, Canada Outline:

MODEL RESPONSE SENSITIVITY TO WAVES, NONLINEAR ADVECTION, AND BOTTOM FRICTION Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30, Patrick Corbitt.

19 December ConclusionsResultsMethodologyBackground Chip HelmsSensitivity of CM1 to Initial θ' Magnitude and Radius Examining the Sensitivity of.

Source: CK12.org Earth Science Chapter 14 Author: Robert G. Smith

What may have happened here had Hurricane Ivan visited us instead of Pensacola? R.H. Weisberg and L. Zheng College of Marine Science University of South.

Progress on the Modification of Offshore Boundary Conditions for Full-Bay ROMS Simulations Have shown previously that ROMS simulations capture tides well,

IOOS/SURA Extratropical Storm Inundation Testbed: Preliminary Results for Scituate, Massachusetts Changsheng Chen, Qichun Xu, Jianhua Qi and Huichan Lin.

Test of improved boundaries configuration for the Tagus Estuary Pre-operational Model (OM) Ângela Canas Maretec SANEST.

OCEN 201 Introduction to Ocean & Coastal Engineering Ocean Environment &Waves Jun Zhang

USF FVCOM Tropical Cyclone Inundation Testbed Progress by Robert H. Weisberg, Lianyuan Zheng and Yong Huang College of Marine Science University of South.

Momentum Equations in a Fluid (PD) Pressure difference (Co) Coriolis Force (Fr) Friction Total Force acting on a body = mass times its acceleration (W)

CLOSED ENERGY BUDGETS FOR REGIONAL NUMERICAL SIMULATIONS Parker MacCready University of Washington.

For a rotating solid object, the vorticity is two times of its angular velocity Vorticity In physical oceanography, we deal mostly with the vertical component.

FLUID ROTATION Circulation and Vorticity. Arbitrary blob of fluid rotating in a horizontal plane Circulation: A measure of the rotation within a finite.

For a rotating solid object, the vorticity is two times of its angular velocity Vorticity In physical oceanography, we deal mostly with the vertical component.

Ocean Currents Ocean Density. Energy in = energy out Half of solar radiation reaches Earth The atmosphere is transparent to shortwave but absorbs longwave.

The Ocean General Circulation. Mean Circulation in the Ocean Gulf Stream.

© 2011 Pearson Education, Inc. CHAPTER 6 Air-Sea Interaction.

Typical Mean Dynamic Balances in Estuaries Along-Estuary Component 1. Barotropic pressure gradient vs. friction Steady state, linear motion, no rotation,

WAVES TIDES. WHAT IS A WAVE? A wave is the transmission of energy through matter. When energy moves through matter as a wave, the matter moves back or.

CEE 262A H YDRODYNAMICS Lecture 13 Wind-driven flow in a lake.

Land-Ocean Interactions: Estuarine Circulation. Estuary: a semi-enclosed coastal body of water which has a free connection with the open sea and within.

Conservation of Salt: Conservation of Heat: Equation of State: Conservation of Mass or Continuity: Equations that allow a quantitative look at the OCEAN.

Development, Testing and Application of the Multi-Block LTFATE Hydrodynamic and Sediment Transport Model Earl J. Hayter See instructions for customizing.

Physical Conditions 9/16-9/ including Hurricane Isabel inches Hg ft (MLLW) knots inches Atmospheric Pressure.

Naeko Takahashi Qing Wang Scott C. Hagen, Ph.D., P.E. Astronomic Tides, Flows and Hurricane Storm Surge Modeling of the Pascagoula River, MS March 4, 2009.

Atmospheric Circulation. The Earth’s energy is partly redistributed by atmospheric circulation. 1.Factors in the Cirulation of Air include; Pressure Gradient.

Osmosis (Revisited) Video. Density mass per volume of seawater Determined by temperature and salinity Density of seawater increases all the way to its.

Tropical Report: Modeling Hurricane Ike with SLOSH Don Slinn, Jeff Ren, Go Fujita Univ of Florida Coastal Engineering.

Circulation in the atmosphere Circulation in the Atmosphere.

Wind-driven circulation II ●Wind pattern and oceanic gyres ●Sverdrup Relation ●Vorticity Equation.

Beaches. Beach Profile A beach environment consists of several zones.

Circulation in the atmosphere Lecture 06 Circulation in the Atmosphere.

1. The geostrophic wind: scale analysis 2. Effects of friction 3. The gradient wind ATOC 4720 class33.

Free Surface Hydrodynamics 2DH and 3D Shallow Water Equations Prof. Dano Roelvink.

Typical Mean Dynamic Balances in Estuaries Along-Estuary Component 1. Barotropic pressure gradient vs. friction Steady state, linear motion, no rotation,

Complete Energetic Analysis of Tidal Power Extraction Elizabeth Brasseale February 17, 2016 Masters Defense Advised by Mitsuhiro Kawase.

Class Meeting Nov. 26, 2:00pm-4:45pm

Assume geostrophic balance on -plane approximation, i.e.,

Enhancement of Wind Stress and Hurricane Waves Simulation

Importance of high-resolution modeling for storm surge, hurricane waves, coastal water levels, and currents in Puerto Rico and the U.S. Virgin Islands.

Coupled atmosphere-ocean simulation on hurricane forecast

Damped Inertial oscillations

5th Workshop on "SMART Cable Systems: Latest Developments and Designing the Wet Demonstrator Project" (Dubai, UAE, April 2016) Contribution of.

ATOC 4720 class37 1. The vertically averaged divergence

Ocean Currents.

Ocean circulation: key questions

Classes of Tornadoes… Main Types of Tornadoes

Combination of oceanographic data with wind data acquired during the cruise to try to draw conclusions on wind stress, Ekman transport and Ekman layer.

Coastal Erosion Workshop

ATOC 4720: class 43: Final review (continue)

Eutrophication indicators PSA & EUTRISK

Hurricane Created by Alana Luke Velasquez

Presentation transcript:

MODEL RESPONSE SENSITIVITY TO WAVES, NONLINEAR ADVECTION, AND BOTTOM FRICTION Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30, Patrick Corbitt Kerr, P.E. JJ Westerink, RC Martyr, ME Hope University of Notre Dame

usSEABED: GoM Offshore Surficial Sediment Database 2 Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30,

3 TIDES Ike (2008) CURRENT ENERGY

Effect of Chezy-Type Bottom Friction 4 Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30,

Part I Wave Bottom Friction Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30, If circulation models are sensitive to bottom friction on the Louisiana-Texas shelf, what is the sensitivity of wave models to bottom friction formulation in that region?

Wave Bottom Friction Friction Formulations 6 Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30, Variable Bottom Material JONSWAP Formulation Bottom Friction in SWAN Recommend by Literature Muddy Bottom? Madsen Formulation Based on Manning’s n

A CB

D GE

H JI

Wave Bottom Friction Summary of Findings 10 Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30, Model Response Sensitivity to Wave Bottom Friction Formulation – Madsen and JONSWAP formulations are both adequate – The JONSWAP friction coefficient is sensitive to bottom type, therefore a C jfon =0.019m 2 s -3 should be used for the muddy LATEX shelf.

Part II Component Contributions Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30, What is the spatial and temporal contributions of wave radiation stress and non-linear advection terms in a hurricane storm surge model and how do these processes compare with the other components of the shallow water equations?

Contribution of Non-Linear Advection OVERALL TEMPORAL

Contribution of Wave Radiation Stress OVERALL TEMPORAL

Component Contributions Scaling Ike at 5 Locations 14 Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30, Local Non-Linear Advection Coriolis Surface Gradient Atmospheric Pressure Tidal Potential Gradient Wind Stress Wave Radiation Stress Gradient Bottom Friction Diffusion (Momentum) Terms

LOCATION 1 Significant Terms: Pressure Surface Local Coriolis

LOCATION 2 Major Terms: Local Coriolis Pressure Surface Moderate Terms: Advection Wind

LOCATION 3 Significant Terms: Surface Wind Bottom Coriolis Local Advection

LOCATION 4 Significant Terms: Surface Wind Advection Wave Bottom Coriolis

LOCATION 5 Significant Terms: Bottom Surface Wind

Component Contributions Summary of Findings 20 Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30, Galveston, TX Component Contributions for Hurricane Ike (2008) – Non-linear advection captures 10-20cm of geostrophic setup and increases resonant waves by 30-40cm. – Wave radiation stress adds cm to maximum water levels and is responsible for an earlier rise in water levels. – Bottom Friction and Coriolis were significant components in the development of Ike’s Forerunner.

QUESTIONS 21 Patrick C. Kerr 17 th ADCIRC WORKSHOP April 29-30,