Project Name

Africa Exposure

Repository with the inventory of residential, commercial and industrial buildings in Africa

Description

The Global Exposure Model is a mosaic of local and regional models with information regarding the residential, commercial, and industrial building stock at the smallest available administrative division of each country and includes details about the number of buildings, number of occupants, vulnerability characteristics, average built-up area, and average replacement cost.

The dataset is developed and maintained by the GEM Foundation, using a bottom-up approach at the global scale, using national statistics, socio-economic data, and local datasets. This model allows the identification of the most common types of construction worldwide, regions with large fractions of informal construction, and areas prone to natural disasters with a high concentration of population and building stock.

The Africa region of the model includes the information pertaining the following countries/territories: Algeria, Angola, Benin, Botswana, Burkina_Faso, Burundi, Cameroon, Cape_Verde, Central_African_Republic, Chad, Comoros, Congo, Democratic_Republic_of_the_Congo, Djibouti, Egypt, Equatorial_Guinea, Eritrea, Eswatini, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea_Bissau, Ivory_Coast, Kenya, Lesotho, Liberia, Libya, Madagascar, Malawi, Mali, Mauritania, Mauritius, Morocco, Mozambique, Namibia, Niger, Nigeria, Rwanda, Sao_Tome_and_Principe, Senegal, Seychelles, Sierra_Leone, Somalia, South_Africa, South_Sudan, Sudan, Tanzania, Togo, Tunisia, Uganda, Zambia, Zimbabwe.

A version of the exposure model for Africa, developed in 2022 in the context of the USAID-funded project SSAHARA is also hosted in this page. This version, referenced in Paul et al (2022), was developed for a baseline year (2020) and six future years (2025, 2030, 2035, 2040, 2045, and 2050).

How to cite this work

Yepes-Estrada, C., Calderon, A., Costa, C., Crowley, H., Dabbeek, J., Hoyos, M., Martins, L., Paul, N., Rao, A., Silva, V. (2023). Global Building Exposure Model for Earthquake Risk Assessment. Earthquake Spectra. doi:10.1177/87552930231194048

Paul, N., Silva, V., Amo-Oduro, D. (2022). Development of a uniform exposure model for the African continent for use in disaster risk assessment. International Journal of Disaster Risk Reduction. https://doi.org/10.1016/j.ijdrr.2022.102823

Available Versions

An open version (v2023.1) of the model, aggregated at Administrative Level 1, is available for direct download under a CC BY-NC-SA 4.0 license. Users interested in this version can click the "Open Repository" button in the right panel to access the information. An alternative open version developed in the context of the USAID-funded project SSAHARA, containing future projections of exposure up to the year 2050, is available for direct download under a CC BY-SA 4.0 license. Users interested in this version can click the "SSAHARA Version Download" button in the right panel to access the dataset.

The full version for any country/territory, at the highest resolution available, can be requested by clicking on the "License Request", where a specific license will be provided, depending on the use case.

License information

The open versions are available under a Creative Commons CC BY-NC-SA 4.0 or CC BY-SA 4.0 license, each of which can require:

*Attribution (you must give appropriate credit, provide a link to the license, and indicate if changes were made)

*Non-commercial (you may not use the material for commercial purposes)

*ShareAlike (derivatives created must be made available under the same license as the original)

Any deviation from these terms incur in license infringement. For commercial use of the model, a specific license agreement must be made tailored to your use case, in such instance please click on "License Request".