TY - JOUR AU - Sepulveda, Ignacio AU - Haase, Jennifer S. AU - Liu, Philip L.-F. AU - Grigoriu, Mircea AU - Tozer, Brook AU - Sandwell, David PY - 2020/12/28 Y2 - 2024/03/29 TI - UNCERTAINTY OF BATHYMETRY MODELS AND EFFECT ON TSUNAMI MODELS JF - Coastal Engineering Proceedings JA - Int. Conf. Coastal. Eng. VL - IS - 36v SE - Swash, Nearshore Currents, and Long Waves DO - 10.9753/icce.v36v.currents.22 UR - https://icce-ojs-tamu.tdl.org/icce/article/view/10307 SP - currents.22 AB - <html>We describe the uncertainties of altimetry-predicted bathymetry models and then quantify the impact of this uncertainty in tsunami hazard assessments. The study consists of three stages. First, we study the statistics of errors of altimetry-predicted bathymetry models. Second, we employ these statistics to propose a random field model for errors anywhere. Third, we use bathymetry samples to conduct a Monte Carlo simulation and describe the tsunami response uncertainty. We found that bathymetry uncertainties have a greater impact in shallow areas. We also noted that tsunami leading waves are less affected by uncertainties.<br><br><b>Recorded Presentation from the vICCE (YouTube Link): <a href="https://youtu.be/zzL_XWWAQ7o">https://youtu.be/zzL_XWWAQ7o</a></b></html> ER -