Geoscience Reference
In-Depth Information
TABLE 2.3
Continued
Organization
Conducting
Inundation
Modeling
State/Region
Description
Oregon
Oregon Health
and Science
University
Oregon inundation maps are based on the SELFE numerical code,
which is a semi-implicit inite-element Eulerian-Lagrangian algorithm
inite-element Eulerian-Lagrangian algorithm
to solve the shallow water wave equations using an unstructured
is a semi-implicit inite-element Eulerian-Lagrangian algorithm
semi-implicit inite-element Eulerian-Lagrangian algorithm
equations using an unstructured
grid. Modelers use Cascadia source scenarios that are an extension
solve the shallow water wave equations using an unstructured
wave equations using an unstructured
an extension
from their previous study (Priest, 1997) but different from the
. Modelers use Cascadia source scenarios that are an extension
source scenarios that are an extension
the
scenarios suggested by the USGS (Geist, 2005). The modeling utilizes
different from the
, 2005). The modeling utilizes
information on the geological paleo-tsunami deposit data (both
offshore and onshore deposits). Oregon produces two-tier inundation
maps (for local and distant tsunami scenarios, e.g., see Figure 2.1), a
GIS database with metadata, maximum wave elevation, maximum
wave velocities, wave height time series, and 2- and 3-D animations.
by the USGS (Geist, 2005). The modeling utilizes
(Geist, 2005). The modeling utilizes
Geist, 2005). The modeling utilizes
Puerto Rico
University of
Puerto Rico
Inundation maps were produced in 2003 using the numerical code
the numerical code
called TSUNAMI-N2. The code is based on a inite-difference, shallow
water wave model that was developed at Tohoku University, Japan.
There are plans to compare results from TSUNAMI-N2 and MOST
2003 using the numerical code
using the numerical code
the numerical code
TSUNAMI-N2 and MOST
using the latest Light Detection and Ranging (LIDAR) topography/
bathymetry data. Modelers here are inclined to use MOST instead of
compare results from TSUNAMI-N2 and MOST
from TSUNAMI-N2 and MOST
instead of
TSUNAMI-N2, although no reason for their choice has been given.
data. Modelers here are inclined to use MOST instead of
. Modelers here are inclined to use MOST instead of
Modelers here are inclined to use MOST instead of
MOST instead of
Washington
NOAA/PMEL
Washington inundation maps are based on the MOST numerical code
(from NOAA/PMEL), which involves nonlinear shallow water wave
theory. The MOST code selects the grid sizes and the time increments
so that wave dispersion behaviors can be compensated for by the
numerical dispersion inherent in the inite difference scheme. For
Paciic coast sites, the Cascadia source scenarios recommended by
the state of Oregon (Priest, 1997) are used for open-ocean sites and
for sites along the Strait of Juan de Fuca. For Puget Sound sites, the
Seattle fault deformation model that simulates the 900-930 AD event
is used as a credible worst-case scenario.
SOURCE: Committee member.
arsc.edu/), while others, such as MOST, which has received substantial support from NOAA, are
available to NTHMP partners upon request. Lastly, states also vary in their approach to post-
processing of the inundation modeling output.
Similar to tsunami source determinations, inundation model outputs and the numerical
codes that produced them have not been universally peer-reviewed or subject to quality con-
trol standards. A recent NOAA report is the irst attempt at a general framework for achieving
quality control of numerical codes for inundation modeling (Synolakis et al., 2007). Only in the
fall of 2008 did the NTHMP MMS adopt this technical memorandum expressing its criteria for
