Diffusion

Datos Bibliográficos

ID23744488
AutoresDenise Pumain (0000-0002-0730-4563, Université Paris Cité, autor de correspondencia)
Año2020
Páginas1-7
Fecha de publicación2020-09-24
Peer ReviewedSí
Open AccessSí
TipoCHAPTER
RevistaInternational Encyclopedia of Geography (SOURCE_BOOK)
EditorialWiley (PUBLISHER • GB)
DOI10.1002/9781118786352.wbieg2054
OpenAlexW4231290142
ISBN9781118786352
IdiomaEN
Referencias citadas9

The concept of diffusion describes regularities in the temporal propagation of people, objects, practices, or information in geographical space. The Swedish geographer Torsten Hägerstrand attached his name as early as the 1950s to the first formulation of the theory of the spatial diffusion of innovations. The spatial constraint on movement is expressed both in terms of proximity and in terms of connectivity. The theory establishes a generic link between behaviors observed at the microscale (those of individuals) and the resulting configurations at the meso‐ or macroscale (regional, continental, and global). Indeed, spatial diffusion theory, with associated concepts and simulation models, has found applications for analyzing and predicting a large variety of spatiotemporal processes. The main ones concern migrations, innovation diffusion, and the spread of epidemics. Recent research focuses on the transmission of epidemics, information, and opinions, particularly via digital networks.

Cartography · Constraint (computer-aided design) · Data science · Diffusion · Diffusion theory · Economic geography · Geographer · Geography · Innovation diffusion · Physics · Remote sensing · Space (punctuation) · Spatial analysis · Statistical physics · Variety (cybernetics) · Artificial Intelligence · Computer Science · COVID-19 epidemiological studies · Human Mobility and Location-Based Analysis · Mathematics · Regional Economics and Spatial Analysis