science

Ice rise

Ice rise is a science 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 Ice rise rather than just read about it. In short: An ice rise is a clearly defined elevation of the otherwise very much flatter ice shelf, typically dome-shaped and rising several hundreds of metres above the surrounding ice shelf. An ice rise forms where the ice shelf touches the seabed due to a locally increased elevation of the seabed, which however remains below sea level.

Key takeaways

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

Reference excerpt

An ice rise is a clearly defined elevation of the otherwise very much flatter ice shelf, typically dome-shaped and rising several hundreds of metres above the surrounding ice shelf. An ice rise forms where the ice shelf touches the seabed due to a locally increased elevation of the seabed, which however remains below sea level. (In contrast, an elevation in the seabed that extends above sea level is defined as an island). The ice shelf flows over the seabed elevation, completely covering it with ice, thereby forming an ice rise. The resulting stress increases cause crevasse formation around the ice rise. An island within and totally covered by the ice shelf may appear the same as an ice rise. Elaborate measurements may be required to distinguish between these two geographic features. Although ice rises are typically located within the ice shelf area, they can partially face the open sea. Ice rises are found within the ice shelves of Antarctica. There is also one found associated with the Ward Hunt Ice Shelf and it is called the Ward Hunt Ice Rise. The largest ice rises exceed dimensions of 50 by 200 km (31 by 124 mi), or 10,000 km2 (3,900 sq mi) in area. Some ice rises are incorrectly called islands, but also a few totally ice-covered islands within an ice shelf are also called ice rises. Ice rises are of scientific significance because they (a) exert considerable buttressing, which affects the existence and rate of the marine ice sheet instability; and (b) they are very good sites for ice coring, owing to their being somewhat thinner than the main ice-sheet (hundreds of metres compared with thousands of metres). Ice rises, grouped by ice shelf, clockwise starting in East Antarctica:

Brunt Ice Shelf McDonald Ice Rumples Riiser-Larsen Ice Shelf Lyddan Island King Baudouin Ice Shelf Derwael Ice Rise Amery Ice Shelf Budd Ice Rumples IR1 to IR5 near the ice front Shackleton Ice Shelf Green Ice Rises (the northernmost ice rise, at 66°21'S) Harrisson Ice Rises Ross Ice Shelf Crary Ice Rise (the southernmost ice rise, at 82°56'S) Roosevelt Island Crosson Ice Shelf Davis Ice Rise Bach Ice Shelf Burgess Ice Rise Dvořák Ice Rise Ives Ice Rise Landy Ice Rises George VI Ice Shelf Martin Ice Rise Wilkins Ice Shelf Petrie Ice Rises Schaus Ice Rises Vere Ice Rise Wordie Ice Shelf Coker Ice Rise Linchpin Ice Rise Miller Ice Rise Napier Ice Rise Reynolds Ice Rise Wade Ice Rise Müller Ice Shelf Humphreys Ice Rise Larsen-C Ice Shelf Bawden Ice Rise Gipps Ice Rise Tharp Ice Rise Filchner-Ronne Ice Shelf Belgrano II Berkner Island Bungenstock Ice Rise Doake Ice Rumples Dott Ice Rise Fletcher Ice Rise Fowler Ice Rise Hemmen Ice Rise Henry Ice Rise Kealey Ice Rise Kershaw Ice Rumples Korff Ice Rise Skytrain Ice Rise Henry and Korff Ice Rises are the largest ice rises, with areas of roughly 1 500 to 1 600 km2.

References

External links Definition

Illustrations

Worked examples

Example 1 — a first encounter with Ice rise

Start with the simplest possible case. Write down what Ice rise claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Ice rise 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 Ice rise 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 Ice rise

In research: Ice rise appears in science 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 Ice rise 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: Ice rise is common in secondary-school and first-year university syllabi. It links to neighbouring topics Antarctica-related lists, Bodies of ice, Ice rises, so understanding it makes those chapters shorter.
In everyday life: Look for Ice rise 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 Ice rise in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ice rise 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 Ice rise out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ice rise in simple terms?

Why does Ice rise matter?

Because it connects several science 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 Ice rise?

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 Ice rise.