physics

Inge Lehmann Medal

Inge Lehmann Medal 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 Inge Lehmann Medal rather than just read about it. In short: The Inge Lehmann Medal is given out by the American Geophysical Union to recognize "outstanding contributions to the understanding of the structure, composition, and dynamics of the Earth's mantle and core". The award was created in 1995 and named after seismologist Inge Lehmann who discovered Earth's inner core.

Key takeaways

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

Reference excerpt

The Inge Lehmann Medal is given out by the American Geophysical Union to recognize "outstanding contributions to the understanding of the structure, composition, and dynamics of the Earth's mantle and core". The award was created in 1995 and named after seismologist Inge Lehmann who discovered Earth's inner core.

Past recipients Source: American Geophysical Union

1997 Donald Helmberger 2000 Richard J. O'Connell 2001 John H. Woodhouse 2003 Francis Anthony Dahlen 2005 Thomas H. Jordan 2007 Ho-Kwang (Dave) Mao 2009 Barbara A. Romanowicz 2011 Donald Weidner 2013 Bradford H. Hager 2014 Thorne Lay 2015 Peter Olson 2016 Shun-ichiro Karato 2017 Brian Kennett 2018 Yoshio Fukao 2019 Ulrich R. Christensen 2020 Peter Shearer 2021 Jean-Paul Montagner 2022 Stephen Grand 2023 Karen M. Fischer 2024 Mike Gurnis 2025 Hitoshi Kawakatsu

See also List of geophysicists List of geophysics awards Prizes named after people

References

Worked examples

Example 1 — a first encounter with Inge Lehmann Medal

Start with the simplest possible case. Write down what Inge Lehmann Medal 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 Inge Lehmann Medal 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 Inge Lehmann Medal 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 Inge Lehmann Medal

In research: Inge Lehmann Medal 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 Inge Lehmann Medal 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: Inge Lehmann Medal is common in secondary-school and first-year university syllabi. It links to neighbouring topics American Geophysical Union awards, Awards established in 1997, so understanding it makes those chapters shorter.
In everyday life: Look for Inge Lehmann Medal 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 Inge Lehmann Medal in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Inge Lehmann Medal means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Inge Lehmann Medal out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Inge Lehmann Medal in simple terms?

Why does Inge Lehmann Medal 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 Inge Lehmann Medal?

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 Inge Lehmann Medal.