GHS settlement grid, updated and refined REGIO model 2014 in application to GHS-BUILT R2018A and GHS-POP R2019A, multitemporal (1975-1990-2000-2015), R2019A

The layer presents a refinement of the REGIO degree of urbanization model using as applied to the global population grid generated by the JRC in four epochs (1975, 1990, 2000, 2015). It has been generated by integration of built-up areas extracted from Landsat image data processing (GHS-BUILT), and population data derived from the CIESIN GPW v4.10 (GHS-POP). This dataset in an update of the data released in 2016. The GHS Settlement Model grid is an improvement of the GHS Settlement Grid (R2016A) introducing a more detailed classification of settlements in two levels, also called ‘refined degree of urbanization’. The Settlement Model is provided at the detailed level (Second Level - L2). First level, as a porting of the Degree of Urbanization adopted by EUROSTAT can be obtained aggregating L2.