Difference between revisions of "Geodata processing at telascience.org"

Revision as of 23:12, 12 February 2007

Background

As one objective of OSGeo, we want to generate/update/enhance existing free geodata for the community. This comprises re-packaging, data storage in convenient formats, tiling and other.

We are kindly supported by http://telascience.org (available resources).

Status of geodata.telascience.org

Participants

Markus Neteler
Frank Warmerdam
Martin Spott

Installed Software

I have installed the following software packages on geodata.telascience.org:

geos 2.2.3
proj 4.5.0 - SPEC file
ogdi-CVS (17 August 2006) - compiled with external proj, expat, zlib
GDAL 1.3.2 - SPEC file
GRASS 6.2.0 - SPEC file
GDAL-OGR-GRASS plugin - SPEC file
OSSIM (19 August 2006) - default compilation
FWTools 1.0.5 - in /usr/local/FWTools-1.0.5, use "fwtools" alias to add to path

Source code:

/home/neteler/software/<software>
if taken from CVS, anon-CVS was used
configuration is saved in each subdir as "conf_<software>.sh"

Binaries:

all binaries are installed into /usr/local/*
/usr/local/lib was added to /etc/ld.so.conf

Apache

Apache is running with a default configuration. The web site contents goes in /var/www/html. After a machine restart it may be necessary to restart apache with "apachectl restart" as root/sudo.

Geodata processing

data are stored on geodata.telascience.org in /geodata/<user>
only root/sudo can add further directories in /geodata/ (FrankW, markusN, hobu, ...)

Data: VMAP0 1:1Mio World Vector Data

/geodata/markus/vmap0/
eur, sas, soa are from 2000, noa from 2002
status: downloaded
TODO:
- convert to SHAPE
- tile into smaller pieces
- cleanup attributes
- remove annoying grid lines (dissolve in GRASS)
- enrich country maps with population data (see here for inspiration, I have their SQL code somewhere)
Already in Geodata_Repository#PostGIS_serving_vector_data (Martin).

Data: GSHHS World Costline Vector Data

/geodata/markus/gshhs1.5/
from Sept. 2004
status: downloaded (~~original server disappeared~~, but MN had a copy)
- Original server is now here, versions newer than 1.3 are licensed as GPL:

http://www.ngdc.noaa.gov/mgg/shorelines/data/gshhs/version1.5/

TODO:
- ~~convert to SHAPE~~ - find them on the NOAA site in the shapefiles/ dir, or I've (Hamish) got a copy.
- tile into smaller pieces
- cleanup/add attributes
Already in Geodata_Repository#PostGIS_serving_vector_data (Martin).

The OpenStreetMap.org wiki claims that the lake data is not very good. Fortunately they list some other alternatives:

http://wiki.openstreetmap.org/index.php/Potential_Datasources#Shoreline_database

That is a very nice page to explore.

Data: Gazetteer data World from geonames.org

/geodata/markus/geonames.org/
- database dump in dump_17aug2006/
- docs in docs/
- fetch.sh script in the dump/ directory for future downloads
status: downloaded
TODO:
- convert to SHAPE?
- insert into PostGIS? - see docs/geonames_dump_into_postgresql.txt
Already in Geodata_Repository#PostGIS_serving_vector_data (Martin).

@@ Line 61: / Line 61: @@
 * /geodata/markus/gshhs1.5/
 * from Sept. 2004
-* status: downloaded (original server disappeared, but MN had a copy)
+* status: downloaded (<strike>original server disappeared</strike>, but MN had a copy)
+** Original server is now here, versions newer than 1.3 are licensed as GPL:
+::http://www.ngdc.noaa.gov/mgg/shorelines/data/gshhs/version1.5/
 * TODO:
-** convert to SHAPE
+** <strike>convert to SHAPE</strike> - find them on the NOAA site in the shapefiles/ dir, or I've (Hamish) got a copy.
 ** tile into smaller pieces
 ** cleanup/add attributes
 * Already in [[Geodata_Repository#PostGIS_serving_vector_data]] (Martin).
+* The OpenStreetMap.org wiki claims that the lake data is not very good. Fortunately they list some other alternatives:
+:http://wiki.openstreetmap.org/index.php/Potential_Datasources#Shoreline_database
+: ''''' That is a very nice page to explore. '''''
 ==== Data: Gazetteer data World from geonames.org ====