23
Jul
12

There’s Buddingtonite in them there hills

The USGS has used hyperspectral imaging data to map out Afghanistan’s mineral resources.

More than 200 flight paths  at 50,000 feet were used to measure surface reflectance  covering over 70% the country. The results were then analyzed to determine which minerals, among other surface materials,  were represented. The various levels (across 800 million pixels of data) were plotted for each flight in a data layer over Landsat satellite imagery.

USGS: Afghanistan

Because the accuracy of the process can be adversely affected by the occurrence of airborne dust, cloud cover and surface moisture, in some areas the map is cross hatched, for example, to indicate possible discrepancies in the data. These inaccuracies do not affect the viability of the process however, given the huge surface areas that can be covered much more practically than with any other process. The results also show the locations of vegetation, water, ice and snow cover.

No news on when a new version of Google maps is due out with ‘mineral deposits view’ as a switchable layer.

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