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#16
gregory

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I tried to find it at ebay but with no success. Can you try to say how often is it show at ebay and what is the average price?
gregory

#17
frax

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gregory,

I think, at least previously, it was possible to buy this data online through ESRI, for a very reasonable price - but I can't find any link/information about that now - you might want to investigate close than I have been doing, the link should be here somewhere, if it is still available:
http://www.esri.com/data/index.html
Hugo Ahlenius
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#18
vW Maps

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Although I haven't used it, the Global Rural-Urban Mapping Project (GRUMP) from Columbia University's CIESIN looks like an interesting data set that might meet your needs.... and will allow you to sidestep the city vs. urbanised area discussion. It's a raster file that came out a couple of years ago.

From the Ciesin website (and then a search on 'grump'):

The "Alpha Version consists of estimates of human population for the years 1990, 1995, and 2000 by 30 arc-second (1km) grid cells and associated datasets dated circa 2000. The data products include population count grids (raw counts), population density grids (per square km), land area grids (actual area net of ice and water), mean geographic unit area grids, urban extents grids, centroids, a national identifier grid, national boundaries, coastlines, and settlement points. These products vary in GIS-compatible data formats and geographic extents (global, continent [Antarctica not included], and country levels). A proportional allocation gridding algorithm, utilizing more than 1,000,000 national and sub-national geographic units, is used to assign population values to grid cells. Additional global grids are created from the 30 arc-second grid at 1/4, 1/2, and 1 degree resolutions. The Spatial Reference metadata section information applies only to global extent, 30 arc-second resolution.

I'd be curious to hear from anyone who's used it.

MvW
Martin von Wyss
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#19
vW Maps

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I'm revisiting this issue because I now need a good, geocoded world gazetteer. Collins Bartholomew has a World Premium package which includes a gazetteer. Does anyone have experience with this data set? I'm currently waiting to hear back from Bartholomew what they charge.

Thanks.
MvW
Martin von Wyss
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#20
François Goulet

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You can find all your information on Collins Bartholomew's World Locator on this page:
http://www.bartholom...data.asp?pid=20

According to their site, a single license is starting at £1875 for the first year...

#21
frax

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I saw that you can download all the places in wikipedia in one mysql-file, could be handy.
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#22
Hans van der Maarel

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I saw that you can download all the places in wikipedia in one mysql-file, could be handy.


Where did you see that? It could certainly be handy.
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#23
frax

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I saw it http://de.wikipedia....ipedia-World/en here...

The database dump seems to be from January 7th - don't know how often that is updated.

I haven't peeked at it more closely, I downloaded it, but I have never used MySQL, so I don't know how useful it is. I assume it won't be super tricky to convert to something useable for other databases (I have MSSQL handy, and I use Access a fair bit).
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