OpenStreetMap
"UAV could map archeological sites in a fraction of the time currently required"
Parašė mapryan, laikas 2012 08 08, kalba English.One of these could be really useful for all those areas with no or poor satellite imagery coverage http://www.gizmag.com/suave-archeological-aerial-mapping/23626/?utm_source=Gizmag+Subscribers&utm_campaign=7f35e162ad-UA-2235360-4&utm_medium=email
Diskusija
Naudotojo Pink Duck komentaras, parašytas 2012 m. rugpjūčio 8 d., 13:56
Presuming the cost is less than that of purchasing satellite imagery.
Naudotojo mapryan komentaras, parašytas 2012 m. rugpjūčio 8 d., 20:48
True
Naudotojo CloCkWeRX komentaras, parašytas 2013 m. liepos 14 d., 08:36
https://www.youtube.com/watch?v=n1E_CPxR3LA is probably quite interesting for you