Basics of Web Design Chapter 6 More CSS Basics Key Concepts 1.
More Tsunami Basics
description
Transcript of More Tsunami Basics
![Page 1: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/1.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 1
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
More Tsunami Basics
![Page 2: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/2.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 2
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
Phases of a Tsunami Event:
•Generation
•Propagation
•Shoaling
•Inundation
![Page 3: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/3.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 3
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
Shoaling
Wave steepens and breaks because of decreasing depth:
![Page 4: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/4.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 4
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
Forces on a structure:
Hydrostatic (pressure) forceBuoyant ForceHydrodynamic Force
![Page 5: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/5.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 5
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
Forces on a structure:
Hydrostatic (pressure) forceBuoyant ForceHydrodynamic ForceSurge ForceImpact ForceBreaking Wave Force
![Page 6: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/6.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 6
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
Here is an example of a broken wave (or bore) hitting a square column in a laboratory:
![Page 7: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/7.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 7
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
![Page 8: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/8.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 8
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
![Page 9: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/9.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 9
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
Hydrodynamic forces on a structure on a structure:Here is what the lateral force looks like on the square column during impact
![Page 10: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/10.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 10
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
For the modelers in the audience, here is the same thing on a computer:
![Page 11: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/11.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 11
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
![Page 12: More Tsunami Basics](https://reader035.fdocuments.us/reader035/viewer/2022062517/56813e47550346895da831d0/html5/thumbnails/12.jpg)
Sponsored by NOAA and USAID under the U.S. Indian Ocean Tsunami Warning System Program Page 12
Catherine Petroff, University of Washington - July 22, 2007UW Educational Outreach – Tsunami Science & Preparedness Program (Su 07)
Let’s do a brief exercise:
Light wood construction
2x4 studs, light plaster both sides 19psf
Floor wood 4 psf
Roof wood 3 psf
5 meters square
1 psf = 48 Newtons/m2
Velocity?Asafa Powell 100
meters in 9.77s, 2006 Zurich
http://nctr.pmel.noaa.gov/education/science/docs/floatorfall.xls