earth science

Sebesi

Sebesi 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 Sebesi rather than just read about it. In short: Sebesi (also Sebeezee, or 'Bleezie') is an Indonesian island in the Sunda Strait, between Java and Sumatra, and part of the province of Lampung. It rises to a height of 844 metres (2,769 ft) and lies about 12 kilometres (7.5 mi) north of the Krakatoa Archipelago; it is the closest large island to Krakatoa, about the same area and height as the remnant of Rakata.

Key takeaways

Sebesi 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 Sebesi to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Sebesi from memory before moving on to harder problems.

Reference excerpt

Sebesi (also Sebeezee, or 'Bleezie') is an Indonesian island in the Sunda Strait, between Java and Sumatra, and part of the province of Lampung. It rises to a height of 844 metres (2,769 ft) and lies about 12 kilometres (7.5 mi) north of the Krakatoa Archipelago; it is the closest large island to Krakatoa, about the same area and height as the remnant of Rakata. Like Krakatoa, it too is volcanic, although no dated eruptions are known. (A single report of an eruption in 1680 seems to be a confusion with the Krakatoa eruption reported from that year.) Unlike the Krakatoa Archipelago, Sebesi has permanent streams and is inhabited. Habitation is concentrated most heavily on the northern and eastern coasts of the island. Sebesi was devastated by the 1883 volcanic eruption of Krakatoa. Official records give approximately 3,000 people killed, with 1,000 of these being 'non-residents'. By 1890, Sebesi was being re-cleared. It is believed that since it lies closer to Sumatra, it has served as a 'stepping stone' for much of the flora and fauna which was re-established on Krakatoa. By the 1920s, settlers had returned, and today the island is almost wholly cultivated land, with only a small area at the top of Sebesi peak and some mangrove swamps still in a natural state. In December 2018, an eruption of Mount Anak Krakatau triggered a tsunami that hit the coastal areas of the island, as well as several smaller islands nearby.

References

Further reading Simkin and Fiske: Krakatau 1883; The Volcanic Eruption and Its Effects (1983) Ian Thornton: Krakatau: The Destruction and Reassembly of an Island Ecosystem (1996)

Illustrations

Worked examples

Example 1 — a first encounter with Sebesi

Start with the simplest possible case. Write down what Sebesi 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 Sebesi 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 Sebesi 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 Sebesi

In research: Sebesi 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 Sebesi 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: Sebesi is common in secondary-school and first-year university syllabi. It links to neighbouring topics Islands of the Sunda Strait, Krakatoa, Subduction volcanoes, so understanding it makes those chapters shorter.
In everyday life: Look for Sebesi 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Sebesi in 20 minutes

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

Frequently asked questions

What is Sebesi in simple terms?

Why does Sebesi 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 Sebesi?

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 Sebesi.