>>>>> "de" == David Earl <[EMAIL PROTECTED]> 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
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