NASA IMERG Global Satellite Precipitation Map
Quick answer: NASA IMERG Global Satellite Precipitation Map shows satellite rainfall on a 1° display grid derived from the 0.1° source. Rotate the globe and change the raster time, or click a location for a separate point query. Source: dynamical.org, CC BY 4.0.
About this dataset
Explore continuous NASA GPM IMERG satellite precipitation on a globe, switch cached observation snapshots and query half-hourly rainfall at a location.
NASA IMERG Late combines satellite measurements into a global precipitation analysis, rather than a forecast. The continuous raster is a cached snapshot: ten by ten 0.1° source cells are averaged into a 1° display cell. Three half-hour observation intervals spaced three hours apart are included. The map reports the observation times, generation time and source snapshot. Missing source cells remain missing in the display grid; the artifact updates when regenerated, not automatically with every observation. The color field comes from the source grid, not an interpolation of the eight sample points. The point-query API is separate: it exports the previous 48 analysis hours as GeoJSON. Point and raster time controls are independent. NASA GPM IMERG data processed by dynamical.org from NASA GES DISC and PPS archives. Raster displays and point-series exports are adaptations by GeoDataViewer.
Data source: NASA GPM IMERG data processed by dynamical.org from NASA GES DISC and PPS archives.
Attribution: NASA GPM IMERG data processed by dynamical.org from NASA GES DISC and PPS archives. CC BY 4.0. Map previews and point-series exports are adaptations by GeoDataViewer.
Actual global satellite precipitation raster captured 8 October 2026; observation 7 October 2026 at 22:30 UTC. The cached 1° display averages 0.1° NASA IMERG source cells. Source, license and basemap credits are visible.
How to download
- 1 Select a variable and use the global raster time control to explore its spatial pattern.
- 2 Click the globe or enter coordinates for a separate point query; inspect its UTC time and selected grid cell.
- 3 Use Download GeoJSON to save the queried series with its attribution, license and snapshot identifier.
- 4 For original gridded data, open the official catalog examples and resolve the Icechunk asset from current STAC metadata. Limit variables, area and time before loading.
FAQ
How is the global weather raster loaded?
The globe loads a lightweight Zarr snapshot generated from the real NASA IMERG Late global grid. Source resolution is 0.1°; display resolution is 1°. It contains three half-hour intervals spaced three hours apart. Check the displayed generation and observation times before interpreting the rainfall. The source archive is available through dynamical.org STAC.
What attribution is required?
NASA GPM IMERG data processed by dynamical.org from NASA GES DISC and PPS archives. Data is licensed CC BY 4.0. Preserve this credit, link to the original source and license, and indicate any changes. GDV's point-series export records this provenance.
What do the times mean?
Analysis times are UTC observation intervals. IMERG Late is published with a delay; absent or pending observations remain missing, not zero rainfall.
Are uploaded files sent to dynamical.org?
No files are uploaded. Global forecasts are read from public cloud archives; the satellite display uses cached grid files. Point queries send the selected coordinates, product, variable and time window to the public dynamical.org API.