[OSM-talk] Hierarchy of places

[Eric Marsden]

>>>>> "de" == David Earl <david at frankieandshadow.com> writes:

  de> I don't know what other "unencumbered" information there would be. I 
  de> don't think there is anyone else here who counts population other than 
  de> the census people, though I imagine local authorities have a good 
  de> estimate in their tax records.
  de> 
  de> But as I said, I think area will do just as well from our point of view 
  de> as well as or instead of population.

  Some people seem to have been successful in estimating population
  density from Landsat imagery:

     http://isu.indstate.edu/qweng/Aug%2005%20PERS.pdf

  The ETL+ Landsat data that this uses doesn't seem to be freely
  available, though. Would it be possible to do something similar with
  the STRM data (urban areas having higher reflectance)?

-- 
Eric Marsden