development & validation of a high-resolution, wind … data fusion lidar digital elevation...

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 1 CHAMPS Lab

Development & Validation of a High-Resolution, Wind-Wave, Tide, and

Hurricane Storm Surge Model for Mississippi & Alabama

Matthew Bilskie Univ. Central Florida

CHAMPS Lab 17th Annual ADCIRC Model Workshop

04/30/2013

Award No. NA10NOS4780146 from the National Oceanic and Atmospheric Administration (NOAA) Center for Sponsored Coastal Ocean Research

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 2 CHAMPS Lab

Nat’l Estuarine Research Reserves

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 3 CHAMPS Lab

NGOM Modeling Domain

FWJ FLPH_AL

MS_SELA

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New Methods

Terrain Description 1. Lidar data fusion 2. DEM generation 3. Mesh node placement 4. DEM to mesh interpolation

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Terrain Description

lidar Digital

Elevation Model

Unstructured Finite Element

Mesh

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Lidar Data Fusion

lidar Digital

Elevation Model

Unstructured Finite Element

Mesh

Combine lidar datasets… Pre- and post-Katrina lidar Post-Ike and Gustav lidar

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 7 CHAMPS Lab

DEM Generation

lidar Digital

Elevation Model

Unstructured Finite Element

Mesh

Resolution of DEM?

Bilskie, M. V., and Hagen, S. C. (2013). "Topographic Accuracy Assessment of Bare Earth Lidar-Derived Unstructured Meshes." Advances in Water Resources, 52, 165-177.

DEM Grid Size (m)

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 8 CHAMPS Lab

Mesh Node Placement Vertical Features

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Mesh Node Placement Vertical Features

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 10 CHAMPS Lab

Mesh Node Placement Vertical Features

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 11 CHAMPS Lab

Mesh Node Placement Vertical Features

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Mesh Node Placement 5 m DEM

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Mesh Node Placement 5m DEM + Vertical Features

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Mesh Resolution

lidar Digital

Elevation Model

Unstructured Finite Element

Mesh

Bilskie, M. V., and Hagen, S. C. (2013). "Topographic Accuracy Assessment of Bare Earth Lidar-Derived Unstructured Meshes." Advances in Water Resources, 52, 165-177.

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 15 CHAMPS Lab

Mesh Node Placement ~60 m element size

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Interpolation Workflow

ADCIRC Mesh

(fort.14) (UTM16)

INTERPOLATION AUTO_v2.1.F90

(Bilskie & Hagen, 2013)

5 m DEM (*.flt/*.hdr) (UTM16) ADCIRC

Mesh (fort_Z.14

)

EXTRACT_VF_NODES_v2.F90

VF (Ridges & Valleys)

*.shp

Input File

Input File

ADCIRC Mesh VF Node Direct Lookup

(fort_VF_Z.14)

Inputs Codes Outputs

( ) 2

0.25

1 1

2 1 1

M

DEM

N

for NCA

N for N

∆=

∆

< = + ≥

Bilskie, M. V., and Hagen, S. C. (2013). "Topographic Accuracy Assessment of Bare Earth Lidar-Derived Unstructured Meshes." Advances in Water Resources, 52, 165-177.

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 17 CHAMPS Lab

Mesh Node Placement Mesh Elevations (DEM Interpolation)

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 18 CHAMPS Lab

Mesh Node Placement Mesh Elevations (DEM Interpolation)

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 19 CHAMPS Lab

Mesh Node Placement Mesh Elevations (DEM & VF Interpolation)

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 20 CHAMPS Lab

MS_AL_SELA ADCIRC Model

• 3.67 million nodes • 7.31 million elements • SWAN+ADCIRC (Dietrich et al., 2011)

• UCF FEMA FLPH_AL Mobile Bay, AL • SL15 - Southeast Louisiana (Bunya et al., 2010)

• SL16 - Deep Ocean (Dietrich et al., 2011)

• Bunya, S., Dietrich, J. C., Westerink, J. J., Ebersole, B. A., Smith, J. M., Atkinson, J. H., Jensen, R., Resio, D. T., Luettich, R. A., Dawsone, C., Cardone, V. J., Cox, A. T., Powell, M. D., Westerink, H. J., and Roberts, H. J. (2010). "A high-resolution coupled riverine flow, tide, wind, wind wave, and storm surge model for southeastern Louisiana and Mississippi. Part I: Model development and validation." Monthly Weather Review, 128(345-377). • Dietrich, J. C., Westerink, J. J., and Kennedy, A. B. (2011). "Hurricane Gustav (2008) Waves and Storm Surge: Hindcast, Synoptic Analysis, and Validation in Southern Louisiana." Monthly Weather Review, 139(8), 2488-2522. • Dietrich, J. C., Zijlema, M., Westerink, J. J., Holthuijsen, L. H., Dawson, C. N., Luettich, R. A., Jensen, R. E., Smith, J. M., Stelling, G. S., and Stone, G. W. (2011). "Modeling hurricane waves and storm surge using integrally-coupled, scalable computations." Coastal Engineering, 58, 45-65.

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ADCIRC Mesh Mississippi & Alabama

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ADCIRC Mesh Bay St. Louis, MS

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ADCIRC Mesh Biloxi Bay, MS

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ADCIRC Mesh Pascagoula River, MS

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ADCIRC Mesh Pascagoula River, MS

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ADCIRC Mesh Grand Bay, MS

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ADCIRC Mesh Tensaw River, AL (North Mobile Bay)

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Validation

• Hurricane Katrina • Hurricane Isaac • Deepwater Horizon

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Hurricane Katrina

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Hurricane Katrina Hydrographs

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Hurricane Katrina Hydrographs

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Hurricane Katrina (426 HWMs) Comparison of Measured HWM to ADCIRC Simulation

(with waves)

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Currently… • Finalizing Katrina Validation

– Processing Synthetic Aperture Radar (SAR) – Acquisition Date: 08/28/2005; 23:51:09

• Hurricane Isaac wind field • Gathering H. Isaac data

– USGS Isaac Storm Tide Mapper (http://wim.usgs.gov/isaacstormsurgemapper/isaacstormsurgemapper.html#)

• Enhance Land Cover with lidar – Manning’s n – Z0 – Canopy

Coastal Hydroscience Analysis, Modeling & Predictive Simulations Laboratory 34 CHAMPS Lab

Acknowledgements / Questions • Scott Hagen • Stephen Medeiros • David Coggin • Andrew Cox • ADCIRC Community

– John Atkinson – Zach Cobell – Casey Dietrich – Jason Fleming – Crystal Fulcher – Michael Salisbury

Contact Info Matt Bilskie E-Mail: Matt.Bilskie@gmail.com Office: 407-823-4843