Measuring the contribution of built-settlement data to global population mapping.



Nieves, Jeremiah J ORCID: 0000-0002-7423-1341, Bondarenko, Maksym ORCID: 0000-0003-4958-6551, Kerr, David, Ves, Nikolas, Yetman, Greg, Sinha, Parmanand, Clarke, Donna J, Sorichetta, Alessandro ORCID: 0000-0002-3576-5826, Stevens, Forrest R, Gaughan, Andrea E
et al (show 1 more authors) (2021) Measuring the contribution of built-settlement data to global population mapping. Social sciences & humanities open, 3 (1). 100102-.

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Abstract

Top-down population modelling has gained applied prominence in public health, planning, and sustainability applications at the global scale. These top-down population modelling methods often rely on remote-sensing (RS) derived representation of the built-environment and settlements as key predictive covariates. While these RS-derived data, which are global in extent, have become more advanced and more available, gaps in spatial and temporal coverage remain. These gaps have prompted the interpolation of the built-environment and settlements, but the utility of such interpolated data in further population modelling applications has garnered little research. Thus, our objective was to determine the utility of modelled built-settlement extents in a top-down population modelling application. Here we take modelled global built-settlement extents between 2000 and 2012, created using a spatio-temporal disaggregation of observed settlement growth. We then demonstrate the applied utility of such annually modelled settlement data within the application of annually modelling population, using random forest informed dasymetric disaggregations, across 172 countries and a 13-year period. We demonstrate that the modelled built-settlement data are consistently the 2nd most important covariate in predicting population density, behind annual lights at night, across the globe and across the study period. Further, we demonstrate that this modelled built-settlement data often provides more information than current annually available RS-derived data and last observed built-settlement extents.

Item Type: Article
Uncontrolled Keywords: Built, Growth model, Machine learning, Meta-analysis, Population, Settlement, Urban
Depositing User: Symplectic Admin
Date Deposited: 16 Feb 2021 16:07
Last Modified: 18 Mar 2024 01:21
DOI: 10.1016/j.ssaho.2020.100102
Open Access URL: https://doi.org/10.1016/j.ssaho.2020.100102
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3115688