Geospatial Information


Spatial Data and National Spatial Data Infrastructure (NSDI)
Introduction
The decennial Population and Housing Census is the largest statistical undertaking of the Namibia Statistics Agency (NSA). Since 2001 the then Central Bureau of Statistics under the National Planning Commission has been using modern Geographical Information technologies (GIT) in the following ways:
1.Mapping and demarcating of Enumeration Areas (EAs) for census enumeration and other surveys;
2.Data cleaning and management;
3.Linking of EA polygons (shape files or other file formats) to census data; and
4.Spatial presentation of census results (i.e., displaying results on maps and atlases).
By virtue of the power held by the Statistics Act, Act No. 9 of 2011, the Central Bureau of Statistics was transformed into a newly established Namibia Statistics Agency.

Capturing of Infrastructural data for planning
The Namibia Statistics Agency also maintains geographic databases of infrastructure (dwelling units) use for residential, commercial and public services such as agriculture, hospital and clinics, schools, police stations, filling stations, transport, water points, etc. These databases also includes data-layers on vital geographical referenced features such as roads, rivers, dams, among many other.
Aerial Photographs
In the course of demarcating, revising and updating the National Sampling Frame, constituting of over 6160 enumeration areas. The Spatial Data and NSDI (National Spatial Data Infrastructure) Division make use of high quality aerial photographs of urban areas and SPOT images for rural areas. Past images acquired between 2001 till date are also available for the general public for reuse in planning, monitoring and evaluation of national developments and researches.

Surveys and Censuses
A lot of data collected in Namibia are based on sample surveys. In order to ensure that the selected households represent the population to be studied, this sub-division is responsible for construction and maintenance of the Master Sample Frame and estimation of sampling errors.
In population censuses and sample surveys, it is important that the right population is surveyed without omissions or duplications. Therefore, this sub-division is also responsible for the preparation of maps of primary sampling units and population census enumeration areas, as well as the maintenance of the Geographic Information Systems (GIS).

Specialised Spatial Analysis and Geo-data Services
The Spatial Data and NSDI (National Spatial Data Infrastructure) Division of the NSA also provides direct assistance upon request to other ministerial institutions, private and public entities, academic institutions, researchers and spatial planning consultants, NGOs with geographic data capturing and updating, sampling frames for various socio-economic surveys, and spatial analysis and planning works that are not covered during the main censuses and survey activities.

How to request for Geo-data and other services
The NSA proudly announces that our data and services are available for public use upon request and completion of a formal agreement form specifying your needs and intended use of the data.
You can access an online request form by clicking here – click here to access and complete the form
WebGIS
Alternatively, as a valuable end-user and producer, you are at liberty to access for analysed geo-statistical on the website through a web-based GIS enabled application. To access the WebGIS applications on the following specific subjects, namely, 2011 Census highlights, 2011 Census Enumeration Areas and 2011 Census Migration, return to our home-page and explore our WebGIS applications.

Researches, Reports, Atlases and Publications
  • Namibia Statistics Agency. 2011. An atlas of poverty in Namibia. Namibia Statistics Agency, Windhoek
  • Namibia Statistics Agency. 2010. An atlas of Namibia’s population: monitoring and understanding its characteristics. Namibia Statistics Agency, Windhoek.
  • Namibia Statistics Agency. 2011. Namibia 2011 Census Atlas. Namibia Statistcs Agency, Windhoek (clickhere to download digital copy).