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#demography

4 posts4 participants0 posts today
Public
Centre for Population Change

TODAY - Joint CPC-CG seminar with the University of St Andrews Population and Health Research Group.

Christina Victor, Professor of Gerontology and Public Health in the College of Health, Medicine and Life Sciences at Brunel University, will discuss whether #loneliness is really bad for #olderpeople, and consider what we should do about it.

Join us online: cpc.ac.uk/activities/full_even

Image shows backs of people sitting on chairs watching a speaker present a seminar in a seminar room. Text advertises: This joint PHRG/CPC-CG Seminar will take place on Thursday 20 March 2025 from 16:30 - 18:00 UK Time. Christina Victor, Professor of Gerontology and Public Health at Brunel University, London will be presenting, "Is loneliness really bad for older people?". Register at: https://www.cpc.ac.uk/activities/full_events_calendar/925/Joint_PHRGCPC_CG_Seminar__Christina_Victor
#gerontology#ageing#demography
Public
Tuomas Väisänen 📼🧟‍♂️

A quick illustrative #map on the implications of using different types of centroids in regional #demography #mobility and #migration studies.

Think about what you are emphasizing.

By using population-weighted centroids, you can emphasize the population perspective in the analysis instead of the geometry, potentially improving your analysis considerably. The distance difference is stronger in sparsely populated and remote regions.

A map of some European countries on the NUTS 3 regional level, where each region contains a geometrically calculated centroid, and a population-weighted centroid. That is, the centremost geographical point of the region. In Northern Europe, the distance difference between the two types of centroids can be hundreds of kilometres, which can have massive implications in studies which use centroids to calculate distance-based metrics. Using the geometric centroid will not provide representative metrics of the region from the perspective of the population. The distance difference in Central European NUTS 3 regions is much less considerable, and the differences are measured in kilometres instead of hundreds of kilometres.
#GIScience#Geospatial#cartography
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