Search Tagged Articles
We live in a wonderful era when absolutely anyone can access the latest free satellite images of Earth; it only takes to know where you can find them. Our best seven free GIS data sources list will make it easier to decide which of the available web services has the data you need.
Did you know there is at least a hundred other spectral indexes, except NDVI (Normalized Difference Vegetation Index), that are widely used to analyze vegetation?
So you’ve decided to start using satellite data but have absolutely no idea what kind of image has the information you need? Our first tip is: figure out what spatial resolution is good for you.