engineering

Sura Ionospheric Heating Facility

Sura Ionospheric Heating Facility is a engineering 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 Sura Ionospheric Heating Facility rather than just read about it. In short: The Sura Ionospheric Heating Facility, located near the small town of Vasilsursk about 100 km (60 miles) eastward from Nizhniy Novgorod in Russia, is a laboratory for ionosphere research. Sura is capable of radiating about 80 megawatts at 4.3 MHz, increasing to 260 megawatts at 9.5 MHz.

Key takeaways

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

Reference excerpt

The Sura Ionospheric Heating Facility, located near the small town of Vasilsursk about 100 km (60 miles) eastward from Nizhniy Novgorod in Russia, is a laboratory for ionosphere research. Sura is capable of radiating about 80 megawatts at 4.3 MHz, increasing to 260 megawatts at 9.5 MHz. The facility is operated by the radiophysical research institute NIRFI in Nizhny Novgorod. The Sura facility was commissioned in 1981. Using this facility, Russian researchers studied the behaviour of the ionosphere and the effect of generation of low-frequency emission on modulation of ionosphere current. In the beginning, the Soviet Defense Department mostly footed the bill.

Technical information The frequency range of the heating facility is from 4.5 to 9.3 MHz. The facility consists of three 250 kW broadcasting transmitters and a 144 crossed dipole antenna-array with dimensions of 300 metres x 300 metres (1000' x 1000'). At the middle of the operating frequency range (4.5 – 9.3 MHz) a maximum zenith gain of about 260 (~24 dB) is reached, the ERP of the facility is 190 MW (~83 dbW).

References

External links pictures of the facility sura.nirfi.sci-nnov.ru further information in Russian sura.nirfi.sci-nnov.ru www.copernicus.org/EGU/annales/15/ag15/935.pdf (see page 2) Experimental 9MHz Transmission form Vasil'sursk in Russia to the WIND Spacecraft of NASA

Worked examples

Example 1 — a first encounter with Sura Ionospheric Heating Facility

Start with the simplest possible case. Write down what Sura Ionospheric Heating Facility claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Sura Ionospheric Heating Facility 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 Sura Ionospheric Heating Facility 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 Sura Ionospheric Heating Facility

In research: Sura Ionospheric Heating Facility appears in engineering 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 Sura Ionospheric Heating Facility 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: Sura Ionospheric Heating Facility is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1981 establishments in the Soviet Union, Buildings and structures in Nizhny Novgorod Oblast, Environmental research institutes, so understanding it makes those chapters shorter.
In everyday life: Look for Sura Ionospheric Heating Facility 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 Sura Ionospheric Heating Facility in 20 minutes

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

Frequently asked questions

What is Sura Ionospheric Heating Facility in simple terms?

Why does Sura Ionospheric Heating Facility matter?

Because it connects several engineering 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 Sura Ionospheric Heating Facility?

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 Sura Ionospheric Heating Facility.