|
|
| GeoCommunity Mailing List |
| |
| Mailing List Archives |
| Subject: | Re: GISList: Looking for point data world-wide |
| Date: |
08/16/2002 06:25:12 PM |
| From: |
Peter Shary |
|
|
Marcel,
Although I do not know precise answer to your question,
you may wish to look at this website:
http://members.fortunecity.com/eco4/giseco/id8.html
It contains links to websites on data resources world-wide.
Best wishes,
Peter
*************************
Peter A. Shary,
scientific researcher and software developer
Institute of physical, chemical, and biological problems of soil science
of the Russian Academy of Sciences
142290 Poushchino Moscow region Russia
Tel.: +7 0967 733604
Fax: +7 0967 790595
URL (research): http://members.fortunecity.com/eco4/research_shary/
URL (software): http://members.fortunecity.com/eco4/giseco/
e-mail: peter_shary@hotmail.com
*************************
>From: m-e.tschudin@bluewin.ch
>To: gislist@geocomm.com
>Subject: GISList: Looking for point data world-wide
>Date: Fri, 16 Aug 2002 17:45:06 +0200
>
>Who can help me?
>
>I try to find geographical data of Populated Places and Elevation Peaks
>(hypsographic points) world-wide, as described in the specification below.
>The data are required for a data base within a private IT-project, which
>eventually might be commercialised. The IT application will have two data
>bases in a self-defined format, one for the Populated Places and the other
>for the Elevation Peaks. Each of the two data bases is expected to have
>a size somewhere between 10MB and 100MB.
>
>In the specification below I explain why the data sets I was able to find
>so far in the internet (DCW and NIMA) are unsuited for this application.
>
>
>Who knows where to obtain such data? Thank you for your contribution.
>
>Marcel E. Tschudin
>
>==============================================
>
>Data from Populated Places and Elevation Peaks (hypsographic points)
>world-wide
>
>Specification
>
>Selection of data corresponding a projection scale of approx. 1:1Mio. up
>to max. 1:250'000, ideally 1:500'000
>
>Data: ASCII-text-file(s), e.g. tab-delimited
>
>File(s) containing the following information
>per Populated Place / Elevation Peak:
>
>1) Country or similar territory: Code, e.g. ISO or FIPS
>
>2) First administrative division, this at least for large countries such
>as e.g. USA, Canada, Russia, China, Australia, Brazil etc.: Sorting-Code
>and corresponding name, by preference in the Latin 26-letter-alphabet
>
>Note: If the data are in separate files per country and administrative
>divisions
>(like DCW- and NIMA-data-sets) the information 1) and 2) would not have
>to be on the data-file.
>
>3) Name of the Populated Place / Elevation Peak (Name of mountain, hill
>etc.) , by preference in the Latin 26-letter-alphabet
>
>4) World-coordinates (Lat./Long.) of Populated Place / Elevation Peak
>
>5) Elevation above sea level, this only for the Elevation Peaks
>
>6) In case of a very detailed data selection, e.g. corresponding to a scale
>of 1:250'000 and lower, the data set would have to be reduced. This would
>require a selection criteria indicating the importance of the Populated
>Place / Elevation peak.
>
>
>
>Internet data:
>The data sets found so far are not suitable, this due to the following
>reasons:
>
>DCW (Digital Chart of the World, 1:1'000'000)
>under http://www.gisdatadepot.com/catalog/
>
>- The names of the elevation peaks are missing
>
>- The data for Russia and China are not further subdivided into
>administrative
>areas.
>
>- Some data are missing such as e.g. the elevation peaks of Mexico: an
>estimated
>10% of the data are erroneous: the data quality for Russia seem to be even
>worse
>
>Note: Since the data set corresponds approx. to the wanted selection, the
>missing selection criteria is not relevant.
>
>
>NIMA e.g. under http://www.nima.mil/gns/html/cntry_files.html
>
>- For Elevation Peaks the height above sea level (DIM) is missing.
>
>- The data set is very detailed. Less important Populated Places /
>Elevation
>Peaks would have to be removed: The required selection criteria (PC) is
>missing.
>
>
>
>
>To unsubscribe, write to gislist-unsubscribe@geocomm.com
>________________________________________________________________________
>Setup a GeoCommunity Account and have access to FAST DataDownloads
>and Premium Career Posting at a discounted rate!
>https://www.geocomm.com/cgi-bin/accounts/login
>
>On-line Archives available at
>http://spatialnews.geocomm.com/community/lists/
>
_________________________________________________________________
Chat with friends online, try MSN Messenger: http://messenger.msn.com
To unsubscribe, write to gislist-unsubscribe@geocomm.com
______
|
|
Sponsored by:
For information
regarding
advertising rates
Click Here!
|
