earth science

Navy oceanographic meteorological automatic device

Navy oceanographic meteorological automatic device 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 Navy oceanographic meteorological automatic device rather than just read about it. In short: The Navy oceanographic meteorological automatic device (NOMAD) is an anchored automated weather station developed shortly after World War II and still used today. Advantages The NOMAD has a boat-shaped hull made from aluminum, and it provides relatively high cost-effectiveness and excellent long-term survivability in severe weather.

Key takeaways

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

Reference excerpt

The Navy oceanographic meteorological automatic device (NOMAD) is an anchored automated weather station developed shortly after World War II and still used today.

Advantages The NOMAD has a boat-shaped hull made from aluminum, and it provides relatively high cost-effectiveness and excellent long-term survivability in severe weather. NOMAD buoys are highly directional and have a quick rotational response and stability. There have been no known capsizings of 6-meter (20 ft) NOMAD hulls. The relatively small size of the NOMAD allows for easy transport across land.

Development The NOMAD hull was developed from the "Roberts buoy," which was a 6.67-foot-long (2.03 m), 400-pound (181 kg) boat-shaped buoy developed in the early 1940s by the United States Coast and Geodetic Survey to measure strong tidal currents. The buoy's performance was satisfactory, but its limited size significantly restricted its use in other areas. In July 1946, the United States Navy's Bureau of Ships became involved in a program to develop automatic weather station buoys. As a prospective part of this program, they conducted a preliminary investigation of the feasibility of mooring a buoy. The investigation concluded that the buoy's hull size was of insufficient length to be moored in 3,600 feet (1,097 m) of water. To support such a mooring, a similarly shaped hull had to be 20 feet (6.1 m) long and displace approximately 20,000 pounds (9,072 kg). This was to become the prototype of the buoy now known as the NOMAD. The NOMAD was the first of such stations to be anchored successfully for a substantial period in more than 11,000 feet (3,353 m) of water. It was also the first anchored automated station to detect the formation of a hurricane and alert weather observers on land. The station was developed as part of the ocean test and evaluation program, started in 1957, for the U.S. Navy's Bureau of Naval Weapons, with the National Bureau of Standards responsible for technical direction.

Use Today, the NOMAD is used for monitoring meteorological, oceanographic, and water quality parameters all over the world. As of 2010, the U.S. National Weather Service had 17 NOMADs in operation. NOMADs have also been used by the Meteorological Service of Canada for over 25 years and there are now three NOMADs monitoring Canadian waters.

References

Illustrations

Worked examples

Example 1 — a first encounter with Navy oceanographic meteorological automatic device

Start with the simplest possible case. Write down what Navy oceanographic meteorological automatic device 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 Navy oceanographic meteorological automatic device 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 Navy oceanographic meteorological automatic device 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 Navy oceanographic meteorological automatic device

In research: Navy oceanographic meteorological automatic device 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 Navy oceanographic meteorological automatic device 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: Navy oceanographic meteorological automatic device is common in secondary-school and first-year university syllabi. It links to neighbouring topics Meteorological instrumentation and equipment, Meteorological stations, Naval meteorology, so understanding it makes those chapters shorter.
In everyday life: Look for Navy oceanographic meteorological automatic device 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 Navy oceanographic meteorological automatic device in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Navy oceanographic meteorological automatic device means in your own words.
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Work through the three examples above with pen and paper.
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Frequently asked questions

What is Navy oceanographic meteorological automatic device in simple terms?

The Navy oceanographic meteorological automatic device (NOMAD) is an anchored automated weather station developed shortly after World War II and still used today. Advantages The NOMAD has a boat-shaped hull made from aluminum, and it provides relatively high cost-effectiveness and excellent long-te…

Why does Navy oceanographic meteorological automatic device 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 Navy oceanographic meteorological automatic device?

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 Navy oceanographic meteorological automatic device.