Spectral Analysis of Water Level and Velocity Data from Crescent City Harbor During the April 1, 2014 Chilean Tsunami

Spectral Analysis of Water Level and Velocity Data from Crescent City Harbor During the April 1,... Crescent City, California typically records some of the largest waveheights along the US west coast for far-field tsunami sources and has suffered more loss than any North American site over the past century. We installed a Nortek Acoustic Doppler Profiler (ADP) in Crescent City Harbor in 2014 to better understand variations in water level and currents caused by forcing, such as tsunamis, tides, and weather events. A small tsunami was first detected in the harbor on April 2, 2014 and had a maximum peak-to-trough waveheight of 0.37 m. This event was near the ADP limit of detectability, with a peak observed tsunami current on the order of 0.16 m/s. Spectral analysis of water level and velocities before, during and after the tsunami shows well-defined spectral peaks with periods corresponding to roughly 20 and 5.6 min in both water level and velocity; elevated spectral levels also appear around 10 min, although a consistent peak location was less well defined. An additional peak appeared at around 2.5 min in water level but was not consistently observed in velocity. During the tsunami, spectral levels increased by roughly an order of magnitude around the 20-min peak (averaged over 24 h), with reduced levels at shorter periods. Motions around the 20-min period were aligned roughly NE–SW, approximately along the channel leading into the inner boat basin. At 5.6-min periods, the motion was roughly NW–SE, suggesting a higher-frequency modal response of the harbor. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pure and Applied Geophysics Springer Journals

Spectral Analysis of Water Level and Velocity Data from Crescent City Harbor During the April 1, 2014 Chilean Tsunami

Loading next page...
 
/lp/springer_journal/spectral-analysis-of-water-level-and-velocity-data-from-crescent-city-Hlz07RyEe9
Publisher
Springer International Publishing
Copyright
Copyright © 2017 by Springer International Publishing AG
Subject
Earth Sciences; Geophysics/Geodesy
ISSN
0033-4553
eISSN
1420-9136
D.O.I.
10.1007/s00024-017-1616-9
Publisher site
See Article on Publisher Site

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial