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I prompted a flurry of PostGIS hate (and some love) on Twitter last week, documented via Storify . I’ve been using PostGIS for around 2 years now both at Stamen and before that at The Washington Post. Let me say upfront that PostGIS is amazing and is definitely in the top 5 best FOSS4G (free and open source software for geo) out there. It is a super powerful spatial data store that is free to download, install, and use (even in commercial projects!). It’s can also be mind numbingly difficult to install and use. It doesn’t matter how awesome something is unless it’s usable.
Kelso’s Corner
Le site Histoire-Géographie de l'académie de Rouen
Même s’il est parfois nécessaire de réaliser soi-même la jointure avec les données statistiques, les couches vectorielles disponibles sur internet et téléchargeables gratuitement sont relativement nombreuses. Il en est de même des couches raster et même des modèles numériques de terrain. Nous en présentons ici une sélection utile pour l’enseignement de nos disciplines, aussi bien en Géographie qu’en Histoire.
ASTER GDEM
How-to (Select tiles directly) Map can be scrolled and zoomed by cursor. Zooming is possible both by mouse and scale bar on the top of the map. When clicking [# Grid] button, tiles will appear.
Données
Raster IGN BDAlti La BDAlti de l'IGN est un MNT disponible sur la France en différentes résolutions. les versions 250 m, 500 m et 1000 m sont disponibles gratuitement. Emprise des données : France (dont DOM/TOM)Ressources pour les SIG - [la cordonnerie]
Certains formats de fichiers nécessitent une conversion. En cas de besoin, voir ici . Ces données sont utiles en 1S et TS pour enseigner la tectonique des plaques. Un TP (en anglais) montre où trouver des données.
World government data revealed Data, data, data. There's loads of it out there and more coming your way as governments open their statistics vaults around the world. First the US with data.gov , then Australia and New Zealand followed suit. Now it's the UK's turn with data.gov.uk .
Government data from around the world. Welcome to our single gateway | News
Download data by country | DIVA-GIS
Select and download free geographic (GIS) data for any country in the world Sources Formats The files have been compressed and grouped in ZIP files. You can use programs such as 7-zip, PKZIP or StuffIt to decompress the files. Vector data are stored as ESRI shapefiles Grid (raster) data are stored as DIVA gridfiles
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Data - GIS at University of Chicago
Some of these data sites are more specific by subject or by region than others. However, it is suggested to first try the links under the “National and International Data” heading before going to more specific sites. The National and International sites are more generic in some instances and may have the data that you are trying to locate. When searching these sites, the keywords of “GIS” and the “subject” in question are usually good starting points if you are having difficulty.Sources of free orthoimagery - World Wind Wiki
From World Wind Wiki Below is a list of sites offering free orthoimagery of various locations. Note that most of the following do not offer the imagery up via WMS and is thus not easy (as yet) to incorporate into World Wind. [ edit ] Austria [ edit ] Burgenland [ edit ] Kärnten
Download free ArcGIS GIS shapefile maps Geospatial Data for Digital Cartography
Sponsors Page 1 of 4, Go To Next Page Doing GIS doesn't have to be expensive or complicated. If you are new to GIS, check out our free GIS tutorial and atlas . Then download free GIS software and free ArcGIS shapefiles here on these pages.With hurrican Irene on its way. I thought some of you may be interested in these historical hurricane shapefiles. These cover the period from 1851 up to 2004. I'm working also to include more recent hurricanes in the near future. The paths of tropical cyclones and major hurricanes from 1851 to 2004. The term "tropical cyclone" is a generic term for a low-pressure storm system that usually forms in the tropics.
Download free Hurricane GIS Shapefile Map Layers
ASTER GDEM 30m DEMs for the world. Downloadable, but a bit hard to navigate. CIESIN (Center for International Earth Science Information Network) Earth Institute, Columbia University Interdisciplinary research related to human interactions in the environment CIESIN hosts: Socioeconomic Data and Applications Center (SEDAC) SEDAC focuses on human interactions in the environment.
Map Library | GIS Resources
Data themes are available in three levels of detail. For each scale, themes are listed on Cultural, Physical, and Raster category pages. Stay up to date! Know when a new version of Natural Earth is released by subscribing to our announcement list . Overwhelmed?