Tag Archives: modis

Rapid Cloud Masking for NPP VIIRS Imagery

Here in Exelis VIS Tech Support, we are often asked, “How do I remove the clouds from my imagery?” Unfortunately, when working with optical imagery, it is usually not possible to recover accurate information for the land surface under clouds. … Continue reading

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Government Imagery Data, Free & Easy to Find!

Aerial photography and satellite images provide state and local government officials with a bird’s eye view of the geography, assets, and infrastructure of their communities.  These days, there are a lot of government imagery data formats that are freely available.  … Continue reading

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Tracking Climate Changes with Satellite Imagery

I was just reading a NASA article about massive glacial melting in Greenland.  What caught my attention, more than anything, was the incredibly short time scale over which major increases in warming and melting were observed:  4 days!  Rarely do … Continue reading

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