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Hundred-year wave

Hundred-year wave is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Hundred-year wave rather than just read about it. In short: A hundred-year wave is a statistically projected water wave, the height of which, on average, is met or exceeded once in a hundred years for a given location. The likelihood of this wave height being attained at least once in the hundred-year period is 63%.

Key takeaways

  • Hundred-year wave belongs to physics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Hundred-year wave to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Hundred-year wave from memory before moving on to harder problems.

Reference excerpt

A hundred-year wave is a statistically projected water wave, the height of which, on average, is met or exceeded once in a hundred years for a given location. The likelihood of this wave height being attained at least once in the hundred-year period is 63%. As a projection of the most extreme wave which can be expected to occur in a given body of water, the hundred-year wave is a factor commonly taken into consideration by designers of oil platforms and other offshore structures. Periods of time other than a hundred years may also be taken into account, resulting in, for instance, a fifty-year wave. Various methods are employed to predict the possible steepness and period of these waves, in addition to their height.

See also Index of wave articles Significant wave height Shallow water equations Rogue wave

References

Worked examples

Example 1 — a first encounter with Hundred-year wave

Start with the simplest possible case. Write down what Hundred-year wave claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Hundred-year wave before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Hundred-year wave ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Hundred-year wave

In research
Hundred-year wave appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Hundred-year wave in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Hundred-year wave is common in secondary-school and first-year university syllabi. It links to neighbouring topics Natural events, Physical oceanography, Water waves, so understanding it makes those chapters shorter.
In everyday life
Look for Hundred-year wave outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Hundred-year wave in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Hundred-year wave means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Hundred-year wave out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Hundred-year wave in simple terms?

A hundred-year wave is a statistically projected water wave, the height of which, on average, is met or exceeded once in a hundred years for a given location. The likelihood of this wave height being attained at least once in the hundred-year period is 63%.

Why does Hundred-year wave matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Hundred-year wave?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Hundred-year wave.

Tags

  • Natural events
  • Physical oceanography
  • Water waves

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