Thematic Research Network on Data and Statistics (TReNDS) of the UN Sustainable Development Solutions Network (SDSN) has launched a report “Leaving No One Off The Map: A Guide For Gridded Population Data For Sustainable Development” in Support of the POPGRID Data Collaborative.
The reports revels the importance of Gridded population data and how it is critical in decision-making and planning. As decision makers need to know where people are located, what conditions they are facing, what infrastructure is available, and what basic services they can access. The report was written with two overarching questions in mind, how can gridded population data supplement current population data sources and support users from the sustainable development community to make timely, informed decisions and Which gridded population dataset is the most suitable for a user’s intended use.
Drawing from an extensive literature review and interviews with key data providers and users in the POPGRID Data Collaborative, the report presents an overview, analysis, and recommendations for the use of gridded population datasets in a wide range of application areas, such as in disaster response, health interventions, and survey planning. Specifically, the report compares seven gridded population datasets from the POPGRID Data Collaborative, including an analysis of the underlying data, methods and basic assumptions, and the corresponding strengths and limitations of each dataset in simple terms. The report also presents an intercomparison assessment of the use of different datasets and their varying outputs, addresses many of the misconceptions around gridded population data, and concludes with nine guiding criteria to aid users in their selection process.
Finding of the reports:
- Gridded population data are a complement, not a substitute for census data.
- When selecting the appropriate gridded population dataset, there are many factors data users should bear in mind.
- Gridded population data are valuable supplements to traditional data sources, but they are not error-free.
- More validation work is needed to compare gridded population data estimates against authoritative data on population location.
Gridded population maps represent the distribution of population in rows and columns of grid cells, typically defined by their latitude-longitude coordinates. An increasing number of data providers are combining information from censuses with satellite-derived geospatial features to redistribute populations and produce gridded population datasets.
To read the report click here