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Friday, December 26, 2008

The Shocking Retreat Of Swiss Glaciers



Last calendar month John Nelson discovered a actually interesting novel purpose for a georeference tool. There are lots of georeference tools, such equally Map Warper, which tin flame live on used to digitize vintage maps past times overlaying them on transcend of a modern interactive map. In Misusing the Georeference Tool for Historic Image Alignment John shows how he used Esri's georeference tool to align a vintage photograph of the Mer de Glace glacier amongst a modern photograph which was taken from close the exact same spot.

By aligning the sometime in addition to novel photos to a greater extent than accurately John was able to supply a much to a greater extent than effective 'before & after' visualization of the glacier's demise.

It is a existent shame that Reuters didn't re-create John Nelson's approach inwards their article New photos vs old: comparisons exhibit dramatic Swiss glacier retreat. The article includes some stunning images of the dramatic loss of Swiss glaciers. Unfortunately these photos are presented actually terribly past times Reuters inwards their article.

Photographer Denis Balibouse searched through a break of online libraries to notice historical, vintage photographs of Swiss glaciers. He thus traveled only about Switzerland to drive in addition to recreate the exact same views equally they tin flame live on seen today. The termination is a serial of sometime in addition to novel photos which reveal the drastic reduction of the glaciers equally a termination of global heating. Unfortunately the Reuters article actually doesn't acquaint the sometime in addition to novel photographs inwards a agency that allows for slow side-by-side comparisons. This is a existent shame equally the photos themselves are actually fantastic (and actually disturbing).

You tin flame stance a break of ameliorate visualizations of the retreat of Switzerland's glaciers inwards Mapping Shrinking Glaciers.