earth science

Litke Deep

Litke Deep is a earth 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 Litke Deep rather than just read about it. In short: Litke Deep (Russian: Жёлоб Ли́тке) is a bathymetric feature in the Arctic Ocean. The deepest point is 5,449 m (17,877 ft) below sea level.

Key takeaways

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

Reference excerpt

Litke Deep (Russian: Жёлоб Ли́тке) is a bathymetric feature in the Arctic Ocean. The deepest point is 5,449 m (17,877 ft) below sea level. It is the closest point of the upper surface of Earth's lithosphere to Earth's center, with Challenger Deep being 14.7268 km (9.2 mi) further from Earth's centre at a bathymetric depth of 6,366.4311 km (3,955.9 mi). The deepest point in Litke Deep is the closest point on the Earth's surface to the Earth's center given that it is located along the planet's polar flattening. Based on average global sea level (mean sea level), the deepest point in Litke Deep is shallower than Challenger Deep. Litke Deep is the second deepest point in the Arctic Ocean after Molloy Deep.

Topography

Location The Litke Deep is located in the southwestern part of the Eurasian Basin, which stretches from northeastern part of Greenland past the Svalbard archipelago, Franz Josef Land and Severnaya Zemlya to the Taymyr Peninsula. It is situated south of the underwater ridge Gakkel Ridge roughly 350 kilometers northeast of Svalbard and roughly 220 km north of the island of Nordaustlandet. The deepest part is at 5,449 metres (17,881 feet) under sea level.

Closest point to Earth's center The Challenger Deep is lower below sea level, but the Litke Deep is reported to be the closest point on the surface to Earth's center, with Molloy Deep a very close second. The seabed at Litke Deep is the fixed point on Earth that has the least distance from the center – because of the oblate spheroid shape of the planet Earth, which is flatter at poles and thicker at the equator. Application of the formula at Earth radius shows that the Earth's radius is 14.7268 km (9 mi) lesser at Litke Deep than at Challenger Deep. Litke Deep is closer to North Pole at 82°24’ N and the difference between Earth's diameter at poles and equator is greater than the depth at Challenger Deep (10,925 m (35,843 ft) below sea level), around 11°22' north, nearer to equator with sea level also having the difference. Despite being 5,475 m (17,963 ft) shallower in depth below sea level, it is 6,351.7043 km (3,946.8 mi) from the Earth's center, 14.7268 km (9 mi) nearer than the Challenger Deep (6,366.4311 km (3,955.9 mi) to the Earth's center). In this ranking, several other Arctic as well as Antarctic depths such as Molloy Deep, seabed at North Pole, Factorian Deep and Meteor Deep in Southern Ocean exceed Challenger Deep. However, by depth below sea level, Litke Deep is not the deepest point in the Arctic Ocean.

Surveys The Litke Deep was located in 1955 by the Russian icebreaker Fyodor Litke expedition. It is named after Russian explorer Fyodor Petrovich Litke.

Descents No crewed or unmanned descents have been undertaken to Litke Deep as of 2024.

Illustrations

Worked examples

Example 1 — a first encounter with Litke Deep

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

In research: Litke Deep appears in earth 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 Litke Deep 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: Litke Deep is common in secondary-school and first-year university syllabi. It links to neighbouring topics Extreme points of Earth, Geography of the Arctic, Lowest points of the World Ocean, so understanding it makes those chapters shorter.
In everyday life: Look for Litke Deep 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 Litke Deep in 20 minutes

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

Frequently asked questions

What is Litke Deep in simple terms?

Litke Deep (Russian: Жёлоб Ли́тке) is a bathymetric feature in the Arctic Ocean. The deepest point is 5,449 m (17,877 ft) below sea level.

Why does Litke Deep matter?

Because it connects several earth 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 Litke Deep?

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 Litke Deep.