The animation above shows how the 10 Global Precipitation Measurement Constellation satellites build up a picture of the earth to track rain, snow and storms.
NASA states that:
This visualization shows the constellation in action, taking precipitation measurements underneath the satellite orbits.
As time progresses and the Earth’s surface is covered with measurements, the structure of the Earth’s preciptation becomes clearer, from the constant rainfall patterns along the Equator to the storm fronts in the mid-latitudes.
The dynamic nature of the precipitation is revealed as time speeds up and the satellite data swaths merge into a continuous visualization of changing rain and snowfall.
Finally, the video fades into an visualization of IMERG, the newly available data set of global precipitation every thirty minutes that is derived from this satellite data.
The colorbar for liquid precipitation (rain):
The colorbar for frozen precipitation (snow).
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