astronomy

Michael Dacey

Michael Dacey is a astronomy 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 Michael Dacey rather than just read about it. In short: Michael Francis Dacey (March 23, 1932 – December 23, 2006) was an American geographer known for his significant contributions to mathematical models in quantitative geography. Dacey founded the department of Mathematical Methods in the Social Sciences at Northwestern University, where he served as a senior associate dean in the College of Arts and Science, as well as a professor of geography, anthropology, and geolo…

Key takeaways

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

Reference excerpt

Michael Francis Dacey (March 23, 1932 – December 23, 2006) was an American geographer known for his significant contributions to mathematical models in quantitative geography. Dacey founded the department of Mathematical Methods in the Social Sciences at Northwestern University, where he served as a senior associate dean in the College of Arts and Science, as well as a professor of geography, anthropology, and geological sciences. His publications were instrumental in establishing quantitative geography in mainstream geography.

Education and field Dacey earned three degrees in geography: his B.S. from the University of Kansas in 1954, his M.A. in 1955, and his Ph.D. in 1960, both from the University of Washington. He worked as a Ph.D. student under geography professor Edward Ullman, who served as an advisor. He was highly influenced by University of Washington geography professor William Garrison at this time. During his time at the University of Washington, Dacey was instrumental in developing the concept of Spatial autocorrelation. Like many of his fellow graduate students at the University of Washington when Dacey was a student there, including Waldo Tobler, Duane Marble, and Arthur Getis, Dacey pursued a prominent career in the fields of spatial analysis, GIScience, and quantitative geography.

Career

Military

After earning his master's degree from the University of Washington, Dacey served for two years in the Army Map Service, a cartographic agency that was under the United States Army Corps of Engineers. In the Army Map Service, he was stationed in Japan. He was discharged from the military in 1958.

Academic After obtaining his Ph.D., Dacey's first academic position was as assistant professor of regional science at the University of Pennsylvania from 1960 to 1964. Here, he and fellow University of Washington student Duane Marble both worked under Walter Isard. In 1994 he moved to the Northwestern University department of geography, which he served as department chair of from 1976 to 1982. In 1978, Dacey established the Mathematical Methods in the Social Sciences (MMSS) at Northwestern to help students that had strong quantitative skills, but were uninterested in physical sciences. In 1987, Dacey became an associate dean in the Weinberg College at Northwestern, and later a senior associate dean in 1993.

Publications and research Darcey published several books, technical documents, and peer-reviewed journals during his academic career that were influential to establishing quantitative geography within the mainstream of geography discipline. Dacey's early research on spatial statistics and Geographic information systems has been described as foundational to the discipline today. Darcey's work is cited by Arthur Getis as underpinning the origin of the concept of spatial autocorrelation, and is credited as the first geographer to cite P. A. P. Moran, and Roy C. Geary. His work in early spatial statistics involving spatial autocorrelation was limited by computer technology at the time, and therefore was unable to be confirmed until later. In the 1964, geographer John Nystuen stated:

"It must be clear to the reader from the contents of this paper that Michael Dacey has indeed traveled over much ground. He has previously developed many of the results needed in this study. Many of his solutions and applications are ingenious. He exhibits an understanding of the theoretical implications of his work. He has a wide knowledge of the literature on probability and is able to adopt simulation methods and computer technology to his purpose. All he lacks is someone to talk to." His 1965 technical report for the Office of Naval Research Some Comments on Certain Technical Aspects of Geographic Information Systems, published with Duane Marble, is described by John Hessler, cartographic specialist at the Library of Congress, as "one of the most conceptually rich treatments of the foundations of Geographic Information Systems from these early years."

Awards and recognition During his career, Dacey received several honors and awards. These include:

1981 Northwestern University Distinguished Teaching Award 1979 Mathematical Geosciences Best Paper Award 1971 American Association of Geographers Meritous Contributions Award In 2004, the Michael F. Dacey Award and Jeanette M. Dacey Award were created by the MMSS to honor Michael Dacey and his Wife Jeanette Dacey for their contributions to the program. These cash awards are given to students at the MMSS graduation party for most outstanding senior thesis and best performance in required coursework.

Personal life Michael and his wife Jeanette had one daughter. At the time of his death, he had one granddaughter.

Illustrations

U.S. Army Corps of Engineers (USACE) logo

Worked examples

Example 1 — a first encounter with Michael Dacey

Start with the simplest possible case. Write down what Michael Dacey claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Michael Dacey 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 Michael Dacey 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 Michael Dacey

In research: Michael Dacey appears in astronomy 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 Michael Dacey 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: Michael Dacey is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1932 births, 2006 deaths, 20th-century American geographers, so understanding it makes those chapters shorter.
In everyday life: Look for Michael Dacey 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Michael Dacey” →

Affiliate

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

How to study Michael Dacey in 20 minutes

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

Frequently asked questions

What is Michael Dacey in simple terms?

Why does Michael Dacey matter?

Because it connects several astronomy 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 Michael Dacey?

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 Michael Dacey.