Data from Moderate Resolution Imaging Spectroradiometer (MODIS)
Wikipedia: a satellite-based sensor used for earth and climate measurements. They capture data in 36 spectral bands ranging in wavelength from 0.4 μm to 14.4 μm and at varying spatial resolutions (2 bands at 250 m, 5 bands at 500 m and 29 bands at 1 km). Together the instruments image the entire Earth every 1 to 2 days.
I looked this up because I want to know fires too close by. Updates every 1 to 2 days is not very useful for that.
In Portugal there is https://fogos.pt/ which is updated very frequently.
You can get (raw) data as the satellites (on precessing near earth polar otbits) pass over .. otherwise you wait until they next pass over, whether in the US or Portugal.
Processed data for the past 24 hours is available, it may be 18 hours "old" though.
Wikipedia: a satellite-based sensor used for earth and climate measurements. They capture data in 36 spectral bands ranging in wavelength from 0.4 μm to 14.4 μm and at varying spatial resolutions (2 bands at 250 m, 5 bands at 500 m and 29 bands at 1 km). Together the instruments image the entire Earth every 1 to 2 days.
I looked this up because I want to know fires too close by. Updates every 1 to 2 days is not very useful for that.
In Portugal there is https://fogos.pt/ which is updated very frequently.