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Asteroid Generated Tsunami Workshop: Summary of NASA/NOAA Workshop
NTRS Full-Text: Click to View  [PDF Size: 88 KB]
Author and Affiliation:
Morrison, David(NASA Ames Research Center, Moffett Field, CA United States);
Venkatapathy, Ethiraj(NASA Ames Research Center, Moffett Field, CA United States)
Abstract: A two-day workshop on tsunami generated by asteroid impacts in the ocean resulted in a broad consensus that the asteroid impact tsunami threat is not as great as previously thought, that airburst events in particular are unlikely to produce significant damage by tsunami, and that the tsunami contribution to the global ensemble impact hazard is substantially less than the contribution from land impacts. The workshop, led by Ethiraj Venkatapathy and David Morrison of NASA Ames, was organized into three sessions: 1) Near-field wave generation by the impact; 2) Long distance wave propagation; 3) Damage from coastal run-up and inundation, and associated hazard. Workshop approaches were to compare simulations to understand differences in the results and gain confidence in the modeling for both formation and propagation of tsunami from asteroid impacts, and to use this information for preliminary global risk assessment. The workshop focus was on smaller asteroids (diameter less than 250m), which represent the most frequent impacts.
Publication Date: Jan 01, 2017
Document ID:
20170005214
(Acquired Jun 12, 2017)
Subject Category: OCEANOGRAPHY
Report/Patent Number: NASA/TM-2017-219463, ARC-E-DAA-TN39066
Document Type: Technical Report
Meeting Information: 2016 Asteroid Generated Tsunami (AGT) Workshop; 23-24 Aug. 2017; Seattle, WA; United States
Meeting Sponsor: NASA Ames Research Center; Moffett Field, CA United States
National Oceanic and Atmospheric Administration; Pacific Marine Environmental Lab. (PMEL); Seattle, WA, United States
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA United States
Organization Source: NASA Ames Research Center; Moffett Field, CA United States
Description: 6p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: TSUNAMI WAVES; ASTEROID COLLISIONS; METEORITE COLLISIONS; HYDROLOGY MODELS; WATER WAVES; FLOOD DAMAGE; IMPACT DAMAGE; HAZARDS; RISK ASSESSMENT; AERIAL EXPLOSIONS; OCEANS; SIMULATION; WAVE PROPAGATION
Other Descriptors: ASTEROID; TSUNAMI
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