science

Supung Lake

Supung Lake 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 Supung Lake rather than just read about it. In short: Supung Lake (수풍저수지) is an artificial reservoir on the border between North Korea and China. The lake has been created by a damming of the Yalu River by the Sup'ung Dam, located just upstream from Sinuiju, North Korea.

Key takeaways

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

Reference excerpt

Supung Lake (수풍저수지) is an artificial reservoir on the border between North Korea and China. The lake has been created by a damming of the Yalu River by the Sup'ung Dam, located just upstream from Sinuiju, North Korea.

History The Sup'ung Dam was built between 1937 and 1943 by the Japanese forces during the Japanese invasion of Manchuria. When it was built, the dam was on China's land, and the power station on North Korea's land. It had the capacity to power all of Korea and Manchuria in electricity. On 19 December 1972, North Korea and China signed a protocol for the Joint Protection/Proliferation and Use of Fishery Resources (8 articles) regarding the management of the Supung Lake. Another protocol was previously signed in 1959 regarding the use of fishery in the lake, but only regional representatives had written and signed this protocol.

Changsung Chalet The Korean-style tiled-roof Changsung Chalet on the shore of the lake is the property of the Kim Il Sung/Kim Jong Il dynasty. There is supposedly a tunnel directly connecting the chalet and inland China.

In literature The South-Korean writer Ko Un wrote a poem about a man who chip away the Supung Dam for decades to " resuscitate the old (Yalu) river". The dam eventually breaks and the water is drained out of the lake, revealing the ancient tombs of the Koguryo and Palhae periods.

Sources

Illustrations

Worked examples

Example 1 — a first encounter with Supung Lake

Start with the simplest possible case. Write down what Supung Lake 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 Supung Lake 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 Supung Lake 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 Supung Lake

In research: Supung Lake 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 Supung Lake 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: Supung Lake is common in secondary-school and first-year university syllabi. It links to neighbouring topics China geography stubs, China–North Korea border, International lakes of Asia, so understanding it makes those chapters shorter.
In everyday life: Look for Supung Lake 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 Supung Lake in 20 minutes

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

Frequently asked questions

What is Supung Lake in simple terms?

Why does Supung Lake 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 Supung Lake?

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 Supung Lake.