Acquiring Information

Statistical Methods - Short-Term

Statistical Methods - Long-term

Figure II-8-1. Probability distribution functions for short-term statics

Stochastic time history

Figure II-8-2. Probability distribution functions for long-term statistics - Part 1

Figure II-8-2. Probability distribution functions for long-term statistics - Part 2 (cont)

Table II-8-2. Parameters in Extremal Distribution Functions

Figure II-8-4. Selection of extreme values for a partial duration series

Figure II-8-5. Plotting position formulas

Return period and encounter probability.

Table II-8-3. Percent Chance for Hs Equaling or Exceeding Return Period Hs

Wind. Wind is discussed in detail in Part II-2

Figure II-8-6. Example wind rose (Leffler et al. 1990)

Table II-8-5. Standard Deviation and Confidence Interval Relationships

Figure II-8-7. Extreme fastest-mile wind speeds with 50-year return period across the United States at 10-m elevation (ASCE 1993)

Figure II-8-8. Milepost map for use with Figure II-8-9; coastal distance intervals marked in nautical miles (1 nautical mile = 1.9 km)

Table II-8-6. Return Period Adjustment Factor

Deep water

EXAMPLE PROBLEM II-8-1

Figure II-8-10. Example Problem II-8-1 probability distribution of wind speeds

Example Problem II-8-1 (Continued) - Part-II-Chap80028

Example Problem II-8-1 (Continued) - Part-II-Chap80029

Intermediate-depth water

Extreme individual wave characteristics

Figure II-8-12. Maximum value of Hs in the surf zone (Goda 1985)

Wave climate. Wave climate is discussed in Part II-2.

Figure II-8-14. Crest elevation at the 2-percent probability level of exceedance (Seelig, Ahrens, and Grosskopf 1983)

Figure II-8-15. Wave climate summary (Hubertz et al. 1993)

Figure II-8-16. Persistence of storm waves

Extreme water level.

Design importance.

Figure II-8-17. Example of short- and long-term surf zone current data (Leffler et al. 1990)

EXAMPLE PROBLEM II-8-2

EXAMPLE PROBLEM II-8-2 (cont)

EXAMPLE PROBLEM II-8-2 (cont) - Part-II-Chap80042

EXAMPLE PROBLEM II-8-2 (cont) - Part-II-Chap80043

EXAMPLE PROBLEM II-8-2 (cont) - Part-II-Chap80044

Table II-8-13. Significant Storm Events

Figure II-8-22. Estimation of shoaling coefficient (Goda 1985)

Figure II-8-23. Astronomical tide probability referenced to MSL

Figure II-8-24. Estimation of wave setup (Goda 1985)

Table II-8-15. Calculation of dijetty for Storm Event 1

Table II-8-16. Calculation of djetty for Storm Event 1

Table II-8-17. Calculation of Hsjetty for Storm Event 1

Figure II-8-26. Identification of surf zone conditions

Figure II-8-27. Return period wave heights, 165 events, jetty head

Table II-8-18. Calculation of Upper Bound Hsjetty Based on Maximum Tide Level

Table II-8-19. Calculation of Upper Bound Hsjetty Based on Maximum During Shoaling

Table II-8-20. Design Significant Wave Heights at Jetty Head

Figure II-8-30. Return period wave heights, toe design, jetty head

Table II-8-22. Calculation of Wave Height Modification by Currents

Figure 31. Wave height modification by currents

Confidence intervals.

Figure II-8-33. Example storm event (Leffler et al. 1990)

Interdependence of Processes During Severe Events

References - Part-II-Chap80063

References (cont) - Part-II-Chap80064

References (cont) - Part-II-Chap80065

Definitions of Symbols - Part-II-Chap80066

Acknowledgments - Part-II-Chap80067

Part-II-Chap8