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Map of global light pollution
The Nov 2004 issue of National Geographic contains a poster size map of
the world with a map of the "Earth at Night" on the reverse - shows areas of light pollution and darker areas - similar maps are available from various places on the web. Might be of interest to people on this group. Cheers Dave |
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David McKee wrote:
The Nov 2004 issue of National Geographic contains a poster size map of the world with a map of the "Earth at Night" on the reverse - shows areas of light pollution and darker areas - similar maps are available from various places on the web. Might be of interest to people on this group. Cheers Dave I've seen a BAA/Philips 'Dark Skies' map for the UK (e.g. http://www.mapsworldwide.com/mwwlive/m29235.htm) but it's only about as detailed as the maps that appear on the CPRE website. Although it has cities and major roads marked it's probably only really useful to suggest whether it's worth taking a telescope on a holiday trip. I could probably guess that .. Are there any higher resolution photos or maps available ? It would be nice to find something that indicates which backroads in my own county are well shielded from nearby streets and towns. -adrian |
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On Thu, 04 Nov 2004 13:29:38 +0000, David McKee wrote:
The Nov 2004 issue of National Geographic contains a poster size map of the world with a map of the "Earth at Night" on the reverse - shows areas of light pollution and darker areas - similar maps are available from various places on the web. Might be of interest to people on this group. And I have just that as my decktop background at the moment ;-) http://antwrp.gsfc.nasa.gov/apod/ap001127.html Mike |
#4
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In article , adrian.110504
@ntlworld.com says... Thanks. It's a pity it didn't get off the ground, though it's hard to collect such a lot of local data (and will people reveal their own favourite dark sites, anyway ?). This should be fairly trivial to calculate to anyone with a good quality GIS system. If you plot the positions of the nearby houses and other light sources, then the system should be able to allow for the rise and fall in the ground and show dark spots. I'd suggest asking a GIS lecturer/researcher from a University if they'd help. Cheers, Aled (who has more than a passing interest in map generalisation) |
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