Fine-scale urban informal settlement time series distribution data set of Dhaka, Bangladesh

This fine-scale urban informal settlement time series distribution data set in Dhaka, Bangladesh provides the distribution of informal residential areas in three periods: 2006, 2010 and 2020. Among them, the data for 2020 was extracted through the Sentinel-2 satellite data and random forest algorithm of Google Earth Engine, combined with the slum data of Dhaka City in 2006 and 2010 extracted by Gruebner et al., and based on Google Earth Images and Earth Gallery photos, POI data, global roof data, etc. are obtained by correcting three years of results and manually correcting auxiliary data such as POI, roof data, and Google Earth Gallery photos. The spatial scope is Dhaka, Bangladesh, and the time scope is 2006, 2010 and 2020.