Dear DHIS2 Community,
We are excited to announce the release of WorldPop Global2 population datasets in DHIS2. This release includes support across:
The Global2 datasets developed by WorldPop provide high-resolution annual population estimates from 2015 to 2030 at 100x100m resolution, including total population as well as disaggregations by age and sex.
If you would like to learn more about the WorldPop Global2 directly from the team behind it and follow the demos of the different ways to use the data in DHIS2, watch our recent webinar and consult the associated resources: here.
Import/Export App - v101.3.1:
The Import/Export App allows you to import historic, current, and projected population totals, as well as population by sex and age groups from WorldPop Global2 as data values via Google Earth Engine.
Requirements
- Organisation Unit geometries must be available and defined as polygons. These are required to aggregate gridded population data. Guidance for configuring administrative boundaries is available. For facility-level imports, catchment area boundaries may be used instead - see here and here for more.
- A Google Earth Engine API must be configured and accessible from your DHIS2 instance. Instructions for setting up access are available.
- The necessary metadata must be configured prior to running the import. We have prepared a metadata package you can use straight away - or as inspiration for your own setup. Download the DHIS2 WorldPop Global2 metadata package, which includes a design and installation guide and the configuration file you can install.
You can access the importer in the “Earth Engine import“ section of the app. There, you can specify:
- The dataset to import.
- The year of interest.
- The organisation units. (We recommend importing data separately for each organisation unit level, as possible inaccuracies or gaps in lower-level geometries would otherwise propagate when aggregating results to higher levels.)
- The destination data elements.
The Import/Export app is on continuous release, compatible with 2.41 and above. You can download the new release from the DHIS2 App Hub or test it out on DHIS2 Play.
Maps App - v101.6.0:
The Maps App allows you to visualise historic, current and projected population totals, as well as population by sex and age groups from WorldPop Global2 via Google Earth Engine.
Requirements
- Organisation Unit geometries must be available and defined as polygons. These are required to aggregate gridded population data. Guidance for configuring administrative boundaries is available. For facility-level imports, catchment area boundaries may be used instead - see here and here for more.
- A Google Earth Engine API must be configured and accessible from your DHIS2 instance. Instructions for setting up access are available.
What’s new:
- The previous Global1 population data source has been replaced with Global2 when adding new layers.
- Existing saved maps will still reference Global1. If you want to use Global2 instead, you will need to manually update those layers.
- You can now select the year of interest directly in the layer configuration.
In addition to visualisation, you can access aggregated figures by organisation unit in pop-ups or via the data table.
The Maps app is on continuous release, compatible with 2.40 and above. You can download the new release from the DHIS2 App Hub or test it out on DHIS2 Play.
DHIS2 Climate Tools:
DHIS2 Climate Tools is a collaborative Python toolkit where you can find reproducible how-to guides and workflows (Jupyter notebooks) that you can use to access Global2 data (and other climate and health related datasets).
Requirements
- Organisation Unit geometries must be available and defined as polygons. These are required to aggregate gridded population data. Guidance for configuring administrative boundaries is available. For facility-level imports, catchment area boundaries may be used instead - see here and here for more.
- The necessary metadata must be configured in advance if you plan to import data in DHIS2:
- For the WorldPop Global2 data we have prepared a metadata package you can use straight away - or as inspiration for your own setup. Download the DHIS2 WorldPop Global2 metadata package, which includes a design and installation guide and the configuration file you can install.
- If your goal is to import climate related variables, you can consult the related Climate App documentation here or directly in-app.
Unlike the other tools, DHIS2 Climate Tools accesses population data directly from WorldPop, allowing you to work with the full range of their datasets.
Resources related to Global2 include:
- A complete workflow to download and import Global2 data into your DHIS2 instance: here.
- A guide focusing on downloading Global2 data: here.
- A guide introducing “Population-weighted aggregation” of climate variables: here.
For additional support on Climate Tools, visit the corresponding section: Climate Tools
We hope these updates make population data more accessible in your workflows!
Best regards,
Bruno Raimbault
DHIS2 Maps app developer