Javascript är avstängt eller blockerat i din webbläsare. Detta kan leda till att vissa delar av vår webbplats inte fungerar som de ska. Sätt på javascript för optimal funktionalitet och utseende.

Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Ola Hall, photo.

Ola Hall

Universitetslektor, prefekt

Ola Hall, photo.

Using Satellite Data on Nighttime Lights Intensity to Estimate Contemporary Human Migration Distances

Författare

  • Thomas Niedomysl
  • Ola Hall
  • Maria Archila
  • Ulf Ernstson

Summary, in Swedish

For well over a century, migration researchers have recognized the lack of adequate distance measures to be a key obstacle for advancing understanding of internal migration. The problem arises from the convention of spatially defining migration as the crossing of administrative borders. Since administrative regions vary in size, shape, and settlement patterns, it is difficult to tell how far movers go, raising doubts about the generalizability of research in the field. This article shows that satellite data on nighttime lights can be used to infer accurate measures of migration distance. We first use the intensity of nighttime lights to locate mean population centers that closely correspond to mean population centers calculated from actual population data. Until now, locating mean population centers accurately has been problematic as it has required highly disaggregated population data, which are lacking in many countries. The nighttime lights data, which are freely available on a yearly basis, solves this challenge. We then show that this information can be used to accurately estimate migration distances.

Avdelning/ar

  • Institutionen för kulturgeografi och ekonomisk geografi
  • CIRCLE

Publiceringsår

2017-05-04

Språk

Engelska

Sidor

591-605

Publikation/Tidskrift/Serie

Annals of the Association of American Geographers

Volym

107

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

Taylor & Francis

Ämne

  • Economic Geography

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0004-5608