Kuhn’s model in Geography

Thomas Kuhn (1922–1996)

Thomas Samuel Kuhn was an American philosopher and historian of science. In 1962, he published The Structure of Scientific Revolutions, introducing the concepts of paradigm and paradigm shift, which transformed the understanding of scientific progress.

Definition: A framework of assumptions, concepts, and values that guide a group or field.

Example (Science): Moving from a-earth-centered universe to a sun-centered solar system is a change in the scientific paradigm.

Example (Daily Life): A shared cultural belief or a standard way of doing business.

Kuhn's Model (1962)

Kuhn's Model explains that science develops through successive paradigms rather than by continuous, gradual progress.

Stages of Kuhn's Model

Pre-paradigm Stage – No common theory; different ideas exist.
Normal Science – Scientists work within an accepted paradigm.
Crisis – Anomalies (unexplained problems) accumulate.
Scientific Revolution – A new paradigm replaces the old one.
New Normal Science – Research continues under the new paradigm.

Key Terminologies: Paradigm, Normal Science, Anomaly, Crisis, Scientific Revolution, Paradigm Shift.

Kuhn's Model in Geography

In geography, Kuhn's model explains how geographical thought changes over time as new theories and methods replace older ones.

Examples

Environmental Determinism → Possibilism
Regional Geography → Quantitative Revolution (Spatial Science)
Spatial Science → Behavioural, Humanistic, Radical, and Critical Geography
Traditional GIS → GeoAI, Big Data, and Geospatial Data Science

Kuhn's Paradigm Shift

A Paradigm Shift is a fundamental change in scientific thinking, where an existing theory or framework is replaced by a new one that better explains observations.

Key Terminologies

Paradigm – An accepted scientific framework or model.
Anomaly – An observation that cannot be explained by the current paradigm.
Crisis – Failure of the existing paradigm to explain anomalies.
Scientific Revolution – Replacement of the old paradigm by a new one.
Paradigm Shift – The transition from one paradigm to another.

Paradigm Shift in Geography

A paradigm shift in geography occurs when new concepts, methods, or technologies fundamentally change geographical research and practice.

Major Paradigm Shifts in Geography (Timeline)

Period	Paradigm Shift
Late 19th Century	Environmental Determinism → Possibilism
1950s–1960s	Regional Geography → Quantitative Revolution (Spatial Science)
1970s	Spatial Science → Behavioural and Humanistic Geography
1970s–1980s	Emergence of Radical and Critical Geography
1990s–Present	GIS, Remote Sensing, and Geospatial Technologies
2020s–Present	GeoAI, Machine Learning, Big Data, and Digital Geography

Importance

Explains the evolution of geographical thought.
Encourages new theories and methods.
Supports scientific innovation in geography.
Forms the basis of modern GIS, spatial analysis, and GeoAI.

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