On Thursday 06 August 2015, Bryce Nesbitt wrote: > > Where are you mapping? If you are mapping in the US there may be > > "USGS Large Scale Imagery" available in the area you are mapping. > > In this case Andermatt, Switzerland.
In general most image providers try to get summer images but in alpine areas this can be difficult since the useful time frame is fairly short in the higher altitudes and late summer is often not the time with most stable good weatcher. Many people mapping landcover and waterbodies in high mountain areas use select lower resolution imagery (i.e. Landsat) in addition to high resolution images from Bing/Mapbox for verification. In some parts of the Alps you have also local sources with aerial photos available which usually are from a much stricter time frame in summer/autumn. As far as i know Andermatt is not included there though. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk