Temporal transitions of demographic dot maps

2021/05/11 by Jeff Allen · 1 citation
Decision Sciences · Environmental Science · Social Sciences · #Human Mobility and Location-Based Analysis #Land Use and Ecosystem Services #demographic modeling and climate adaptation

paper · doi:10.1080/23729333.2021.1910184

openalex publication_date 2021/05/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/02/13

Abstract

Dot maps are often used to display the distributions of populations over space. This paper details a method for extending dot maps in order to visualize changes in spatial patterns over time. Specifically, we outline a selective linear interpolation procedure to encode the time range in which dots are visible on a map, which then allows for temporal queries and animation. This methodology is exemplified first by animating population growth across the United States, and second, through an interactive application showing changing poverty distributions in Toronto, Canada.

Citations

• Interpolating U.S. Decennial Census Tract Data from as Early as 1970 to 2010: A Longitudinal Tract Database
• Are new patterns of low‐income distribution emerging in Canadian metropolitan areas?

Cited by

• Dot distribution map [wikipedia]

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