Gridded population estimates for Sudan using UN COD-PS estimates 2022, version 2.0

This README file provides information about the data included in the data release, how it was produced, source data that were used.

This geotiff raster, at a spatial resolution of 3 arc-seconds (approximately 100m at the equator), contains estimates of total population size per grid cell across Sudan. NA values represent areas that were mapped as unsettled based on the GHSL settlement layer and Digitize Africa building footprints. These data are stored as floating-point numbers rather than integers to avoid rounding errors in aggregated populations for larger areas.

This zip file contains raster files in geotiff format at a spatial resolution of 3 arc-seconds (approximately 100m at the equator). Each raster provides gridded population estimates for an age-sex group of settled areas (NA represent unsettled areas). Files are labelled with either an “M” (male) or an “F” (female) followed by the age-range of the group (five year bins). For instance, “F_00_04” and “M_05_09” are population counts of under 5 year olds for females and between 5 and 9 years old for males, respectively. Eighty year olds and over are represented in the groups “F_80Plus” and “M_80Plus”. These data were produced using age-sex national proportions from COD-PS. The age-sex proportions were applied to the gridded population estimates (sdn_pop_2022_100m_constrained_v1) to allocate the population to the different age-sex classes. While this data represents population counts, values contain decimals, i.e. fractions of people. This is because we do not estimate which grid cell each individual in a given age group occupies and are maintaining the UN COD-PS numbers. For this reason, it is advised to aggregate the rasters at a coarser scale. For example, if four grid cells next to each other have values of 0.25 this indicates that there is estimated to be 1 person of that age group somewhere in those four grid cells.

This geotiff raster, at a spatial resolution of 30 arc-seconds (approximately 1km at the equator), contains estimates of total population size per grid cell across Sudan. NA values represent areas that were mapped as unsettled based on the GHSL settlement layer. The dataset was produced by aggregating sdn_population_2022_100m_constrained_v1.tif dataset to 1km.

This zip file contains rasters in geotiff format at a spatial resolution of 30 arc-seconds (approximately 1km at the equator). Each raster provides gridded population estimates for an age-sex group of settled areas (NA represent unsettled areas). These datasets were produced by aggregating sdn_agesex_2022_100m_constrained_v1_0 datasets respectively to 1km.

This zip file contains rasters in geotiff format at a spatial resolution of 30 arc-seconds (approximately 1km at the equator). Each raster provides gridded population estimates for children, broken down in differing school attendance age groupings (0 to 5 years old, 0 to 17 years old, 6 to 13 years old and 14 to 17 years old) for settled areas (NA represent unsettled areas). Files are labelled with either an “M” (male) or an “F” (female) or “F_M” for both male and female. These data were created by applying Sprague multipliers to “sdn_agesex_2022_1km_constrained_v2 “ raster data. Sprague multipliers are used to interpolate data and obtain population estimates by single years of age and these are then aggregated to obtain differing age groupings.

This zip file contains the zonal statistics calculated using “sdn_school_age_2022_1km_constrained_v2 ” and level 2 of Subnational Administrative Boundaries for Sudan provided by OCHA on HDX: https://data.humdata.org/dataset/cod-ab-sdn

This zip file contains the zonal statistics of total population calculated using “sdn_agesex_2022_100m_constrained_v2” and level 2 of Subnational Administrative Boundaries for Sudan provided by OCHA on HDX: https://data.humdata.org/dataset/cod-ab-sdn

This zip file contains raster files in geotiff format at a spatial resolution of 3 arc-seconds (approximately 100m at the equator). Each raster provides gridded population estimates for an age-sex group of settled areas (NA represent surface waters). Files are labelled with either an “M” (male) or an “F” (female) followed by the age-range of the group (five year bins). For instance, “F_00_04” and “M_05_09” are population counts of under 5 year olds for females and between 5 and 9 years old for males, respectively. Eighty year olds and over are represented in the groups “F_80Plus” and “M_80Plus”. These data were produced using age-sex national proportions fromCOD-PS. The age-sex proportions were applied to the gridded population estimates (sdn_pop_2022_100m_uconstrained_v1) to allocate the population to the different age-sex classes. While this data represents population counts, values contain decimals, i.e. fractions of people. This is because we do not estimate which grid cell each individual in a given age group occupies. For this reason, it is advised to aggregate the rasters at a coarser scale. For example, if four grid cells next to each other have values of 0.25 this indicates that there is 1 person of that age group somewhere in those four grid cells.

This geotiff raster, at a spatial resolution of 3 arc-seconds (approximately 100m at the equator), contains estimates of total population size per grid cell across Sudan. NA values represent areas that were mapped as water. These data are stored as floating-point numbers rather than integers to avoid rounding errors in aggregated populations for larger areas.

This zip file contains raster files in geotiff format at a spatial resolution of 30 arc-seconds (approximately 1km at the equator). Each raster provides gridded population estimates for an age-sex group of settled areas (NA represent surface waters). Files are labelled with either an “M” (male) or an “F” (female) followed by the age-range of the group (five year bins). For instance, “F_00_04” and “M_05_09” are population counts of under 5 year olds for females and between 5 and 9 years old for males, respectively. Eighty year olds and over are represented in the groups “F_80Plus” and “M_80Plus”. These data were produced using age-sex national proportions fromCOD-PS. The age-sex proportions were applied to the gridded population estimates (sdn_pop_2022_1km_uconstrained_v1) to allocate the population to the different age-sex classes. While this data represents population counts, values contain decimals, i.e. fractions of people. This is because we do not estimate which grid cell each individual in a given age group occupies. For this reason, it is advised to aggregate the rasters at a coarser scale. For example, if four grid cells next to each other have values of 0.25 this indicates that there is 1 person of that age group somewhere in those four grid cells.

This geotiff raster, at a spatial resolution of 30 arc-seconds (approximately 1km at the equator), contains estimates of total population size per grid cell across Sudan. NA values represent areas that were mapped as water. The dataset was produced by aggregating sdn_pop_2022_100m_unconstrained_v1_0.tif dataset to 1km.