Mapping and Modeling Subcommittee Update

1. Mapping and Modeling Subcommittee Update Roger Hansen and Susan McLean M&M Co-chairs

2. Overview of Terms of Reference • Authority • The M&M Subcommittee is the primary mechanism for NTHMP partner input to the mapping, modeling, and hazard components of the NTHMP. • The subcommittee’s actions and recommendations will be achieved by consensus, and considered to represent the collective will of those partners. • This authority is established within the context of PL 109-424 and subject to the provisions of Sections 4, 5 and 6 of the Act, most particularly Section 5(c1).

3. Overview of Terms of Reference • Chairpersons • Approved by a majority of the NTHMP Coordinating Committee • Include a representative from NOAA and a from one of the member States • Serve 2 years with rotation staggered to maintain leadership continuity • subcommittee members can recommend a 1-year extension • Roger Hansen, Alaska (November 2006) • Susan McLean, NOAA/NGDC (November 2007) • Communications • Take place primarily by email and conference calls although specific subcommittee meetings are encouraged. • Notes and Action Items will be maintained by the Chairpersons and posted to the NTHMP web site. • Completion of actions will be coordinated by the Chairpersons. • Recommendations will be forwarded to the appropriate organizations by the Chairpersons.

4. Action Item Status – Coordinating Committee Actions Action: Propose recommendations to the NTHMP CC on how a process could be established for sharing and archiving Mapping and Modeling information across all NTHMP.

5. Action Item Status – Coordinating Committee Actions Action: Assess the issues, requirements, and mechanisms related to production of inundation maps. Clarify what is being requested and outcomes expected. Identify risks or issues associated with sharing the identified information. Develop recommendations for the broader NTHMP committee to consider on how a process could be established for sharing this information to advance research and manage operations

6. Action Item Status – Coordinating Committee Actions Action: Assess the issues, requirements, and mechanisms related to production of inundation maps. Clarify what is being requested and outcomes expected. Identify risks or issues associated with sharing the identified information. Develop recommendations for the broader NTHMP committee to consider on how a process could be established for sharing this information to advance research and manage operations

7. Action Item Status – M&M Actions

8. Action Item Status – M&M Actions

9. Action Item Status – M&M Actions

10. Action Item Status – M&M Actions

11. M&M FY08 Funding Report • Proposal to host an M&M Subcommittee Meeting between the National Meetings • Focus of Meeting: Establishing Subcommittee Terms of Reference and develop methodology to address M&M issues related to DEM priorities, Benchmarking Models, Code sharing, Best practices, and Archive • Meeting Dates: 9-11 Sep 2008 Boulder, CO • Amount Received: $26,260.00 • Date Received: 22 May 2008 • Amount Spent: $14,432.55 • Remainder to be applied to 2009 Subcommittee or DEM Workshop

12. Selected Outcomes - Modeling • M&M considers the PMEL forecast effort has limited applicability in its current form for mitigation. The applicability could be substantially increased, in those cases where the States work directly and collaboratively with PMEL to identify a community driven process that includes: • priorities, • source scenarios (local and distant), • model parameters • high-resolution SIFT DEMs, and • results in State products and coverage for the communities • To evaluate further the applicability, M&M requires a: • A “definition of mitigation” from the Mitigation and Education Subcommittee (action assigned to M&ESC at the June 18, 2008 CC meeting) and • A better understanding of the PMEL forecast modeling process and how this process could support State inundation mapping for mitigation (see action items 2 and 3).

13. Selected Outcomes – DEM Priorities • The existing list of priority forecast areas is a good starting point for developing a National DEM priority list • To expand the existing list, M&M will undertake the following actions. • Identify existing areas with public DEMs (NTHMP DEM Portal & listing) • States develop priority list for community inundation mapping needs • Compare requirements and develop list of unmet needs • M&M develop process of prioritization • Begin at November National NTHMP meeting and finalize at M&M meeting • Based on criteria to be determined, but possibly including: hazard level, data quality and availability, forecast requirement, partnerships • NGDC and State partners communicate needs and priorities to data collection agencies

14. Focus: NTHMP DEM Viewer • Beta viewer (under review) • NGDC Hosting • Contains all NOAA completed & planned tsunami DEMs • Currently populating with State completed, planned, required DEMs • Identify and link to / download DEM and project information

15. Focus: Tsunami Data Archive Estimated volume & cost TBD • NGDC (funded by NOAA) currently archives • DART & Tide gauge high-resolution data & metadata (non-real time) • Historical tsunami event and runup data • Historical impacts photos • Coastal tsunami DEMs (and associated data) • Coastal LiDAR data • NOAA Archive growth from 12GB (2006) to 3,800 GB (2008) • NTHMP data NOT addressed in archive • Inputs: deformation files, configuration files for grids, model input parameters, model source code or description, additional bathymetry / topography, flow depth grids, inundation grids • Outputs: Gridded water fluxes and total depth, inundation zones for scenarios, flow depths on dry land, time series at given points, post-processed inundation line and flow depth grid, GIS projects, technical reports, final inundation products

16. Questions or Comments?

17. AK • Minimum Inputs: deformation files, configuration files for grids, model parameters, e.g. Coriolis parameter, friction coefficient, minimal total depth for inundation modeling, and time steps.   • Total size of all grids needed for one run: about 500 Mb. • Model source code including PETSc library: 100 Mb  • Outputs: Gridded water fluxes and total depth, inundation zones for every tsunami scenario, flow depths on dry land, time series at given points (about 500 Mb). • HI • Minimum Input: • Bathymetry/Topography grids (with appropriate metadata) Volume: 350 – 550 Mb (See Table 2 in Action 7) • Model source code (or compiled executable file) Volume: 1Mb total (code is not open source) • Model input parameters such as friction, timesteps, grid sizes/resolution, output specifications, etc. • Input source deformation parameters (initial tsunami generation mechanism) • Description of source code, equations and computer used (publication or technical report) • Total Input Data Volume: 350 – 550 Mb  • Minimum Output for reproducible results: • Initial tsunami wave elevation grid Volume: 60 – 75 Mb • Summary of nearshore wave conditions (flow depth, runup/inundation grids) Volume: 10 – 20 Mb • Summary of nearshore wave elevation time series grid (could skip because of space considerations) Volume: 200 – 650 Mb • Post-processed inundation line and flow depth grid generated from model output Volume: 5 – 10 Mb • Technical report describing post-processing methodology Total Output Data Volume: 80 – 750 Mb • CA • Minimum Inputs: Bathymetric grids, flow depth grids, inundation grids, source input data • Outputs: Max flow depth grids, max inundation grids, max wave elevation grids, expanded wave elevation, pre-field max inundation line, various DEM grids, final inundation line • OR: all plus- GIS database w/ metadata; Wave height & velocity time series, 2-D and 3-D animations, technical reports • ALL – tsunami inundation products (i.e. tsunami hazard and inundation maps,