--- On Wed, 26/8/09, Elizabeth Dodd <ed...@billiau.net> wrote:
> some places i have been over so many times (like the road
> to canberra, the
> roads to adelaide, and the road to work) that the actual
> date is meaningless,
It's not meaningless, and if it changes just update the survey date.
> but the last year i did the journey is
> we also can't date the satellite imagery accurately.
> for example
> landsat is supposedly the 7 year old set, but it is about
> 10 years old at
> home, judging from the dates of new housing estates
With google earth you can figure out the age of the imagery for a particular
location, I've no idea if there is anything similar for yahoo imagery, but you
could always estimate it:
imagery_date:estimate=20070101
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