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Galerie d'images satellites. 1:10m Cultural Vectors. Kelso’s Corner. I prompted a flurry of PostGIS hate (and some love) on Twitter last week, documented via Storify.

Kelso’s Corner

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. Besides the specific issues outlined below, PostGIS lacks basic functions required for spatial analysis found in ArcToolbox. @PostGIS asked me for details on how it could be friendlier and I’ve itemized around 20 below.

If a project that is considered core to the FOSS4G stack (eg Mapnik, PostGIS, etc), the project needs to act like it. 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.

Le site Histoire-Géographie de l'académie de Rouen

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. 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.


Ressources pour les SIG - [la cordonnerie] Government data from around the world. Welcome to our single gateway. The Arthur H. Robinson Map Library at the University of Wisconsin-Madison. Download data by country. 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.

Download data by country

You can use programs such as 7-zip, PKZIP or StuffIt to decompress the files. About GIS. As of July 1, 2013 ThinkQuest has been discontinued.

About GIS

We would like to thank everyone for being a part of the ThinkQuest global community: Students - For your limitless creativity and innovation, which inspires us all. Teachers - For your passion in guiding students on their quest. Partners - For your unwavering support and evangelism. Parents - For supporting the use of technology not only as an instrument of learning, but as a means of creating knowledge. We encourage everyone to continue to “Think, Create and Collaborate,” unleashing the power of technology to teach, share, and inspire. Satelliteimages QL. GEOFABRIK Downloadbereich. | Data - GIS at University of Chicago. Some of these data sites are more specific by subject or by region than others.

Data - GIS at University of Chicago

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.

Map Collection (Regenstein Library) The University of Chicago Libraries have access to a large number of digital GIS datasets. Sources of free orthoimagery - World Wind Wiki. 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.

Download free ArcGIS GIS shapefile maps Geospatial Data for Digital Cartography

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. Free World Shapefiles by Country. Ebola Outbreak Maps & Shapefiles. Download free Hurricane GIS Shapefile Map Layers. With hurrican Irene on its way.

Download free Hurricane GIS Shapefile Map Layers

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 the free hurricane GIS shapefile map layers here Mike Meuser GIS Project Development, Data Research and Custom Shapefile CreationFree GIS Software, Shapefiles, Maps and TutorialsFree GPS, Aerial, TOPO Maps and News If you have data, GIS project or custom shapefile needs send me an email Premium Shapefiles: ZipCode, Indian & Federal Lands, School Districts, Tornadoes, Dams, Climate Change & Global Warming. GIS Resources. Primary Data Search. Downloads. 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? The Natural Earth quick start kit (165 mb) provides a small sample of Natural Earth themes styled in an ArcMap .MXD document and in a QGIS document.

Natural Earth is the creation of many volunteers and is supported by NACIS. Large scale data, 1:10m Cultural Physical Raster The most detailed. 1:10,000,000 1″ = 158 miles 1 cm = 100 km. EROS Find Data/Products and Data Available/gtopo30/hydro. Aide:Cartographie/Ressources cartographiques géoréférencées. Une page de Wikipédia, l'encyclopédie libre.

Aide:Cartographie/Ressources cartographiques géoréférencées

Cette page répertorie de façon non-exhaustive les outils, ressources et liens externes pour la création cartographique au sein de Wikipédia en utilisant des modèles numériques de terrain et plus généralement des données numériques géoréférencées. Ne sont donc pas mentionnés ici par exemple les sites proposant des cartes libres prêtes à l'emploi ou autres ressources permettant de tracer des cartes à main levée qui sont traités par d'autres pages d'aides cartographiques complémentaires à celle-ci. Voir aussi :