Monday, March 7, 2011

Accessing Landsat Data and Using it in ArcGIS


With a continuous record of global imagery extending back the 1972, the USGS Landsat archives are a real treasure trove of information.  For a long time Landsat imagery was the domain of remote sensing experts, but with USGS making most Landsat images available online through their Global Visualization Viewer (GLOVIS) the data are now accessible to all.  One of the most common questions I get when discussing image processing to GIS professionals is "How do I do that in ArcGIS?"  Well, if you are looking to download some Landsat imagery and manipulate it in ArcGIS, this video is for you.  It will walk you through the entire process, from downloading the imagery from GLOVIS to generating a Normalized Difference Vegetation Index (NDVI) layer in ArcGIS.

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