science

Sornfelli

Sornfelli 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 Sornfelli rather than just read about it. In short: Sornfelli is a mountain plateau on the island of Streymoy in the Faroe Islands about 12 km from the capital Tórshavn (20 km by road), in the Mjørkadalur valley. It is the site of a NATO military radar station at 725m above sea level (asl).

Key takeaways

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

Reference excerpt

Sornfelli is a mountain plateau on the island of Streymoy in the Faroe Islands about 12 km from the capital Tórshavn (20 km by road), in the Mjørkadalur valley. It is the site of a NATO military radar station at 725m above sea level (asl). The Sornfelli Meteorological Station installed in 1999 is located in the middle of the 40,000 m2 Sornfelli Mountain top plateau, also at 725m above sea level.

Climate Temperatures at the meteorological station in 2000 were:

Mean annual air temperature: +1.7 °C Mean coldest month (April): −2.2 °C Mean warmest month (August): 6.5 °C From Tórshavn you can drive over the mountain road "Oyggjarvegin" to the Sornfelli Mountain plateau. There is a public road up to the Sornfelli Mountain plateau, but not the last 200 m to the radar base. The mountain of Sornfelli has a height of 749m.

Military base

Sornfelli was the site of a Danish military installation (Joint Arctic Command) and NATO early warning radar system until the Danish authorities closed it in 2002. Known as Site 43, it was also part of the North Atlantic Radio System and ACE High, with tropospheric scatter links to Hofn Air Station (H-3) and RAF Mormond Hill. There is a basic cable railway for freight, of a couple hundred metres to the top of the station, as the road does not reach the peak. The radar station atop Sornfelli mountain was supported by a multi-storey bunker built inside the mountain. The main base of operations, which at its peak hosted up to 200 soldiers of the Danish military, was situated in the Mjørkadalur base. On 15 November 2010 the last equipment was shut down at the base. One of the smaller radars continues to serve civilian radar purposes for air traffic control purposes for ISAVIA and aviation VHF. Sornfelli also continues to serve civilian communications purposes for Føroya Tele.

In 2022, the Danish Government committed to reinstating a NATO military radar station on Sornfelli.

References

Scannet (2007). "Sornfelli". Scandinavian / North European Network of Terrestrial Field Bases. Retrieved 2007-06-09.

Illustrations

Worked examples

Example 1 — a first encounter with Sornfelli

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

In research: Sornfelli 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 Sornfelli 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: Sornfelli is common in secondary-school and first-year university syllabi. It links to neighbouring topics Faroe Islands geography stubs, Meteorological stations, Mountains of the Faroe Islands, so understanding it makes those chapters shorter.
In everyday life: Look for Sornfelli 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 Sornfelli in 20 minutes

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

Frequently asked questions

What is Sornfelli in simple terms?

Why does Sornfelli 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 Sornfelli?

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 Sornfelli.