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Geospatial Big Data

Geospatial Big Data

Geospatial Big Data is a living digital inventory of the surface of our planet derived from over 5 billion square kilometers of current and historical imagery and information. This inventory enables you to find, count and measure features of the Earth’s surface enabling data analysis at a scale like never before.

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GeoPlatform : Shared geospatial data

GeoPlatform : Shared geospatial data

The GeoPlatform provides shared and trusted geospatial data, services, and applications for use by the public and by government agencies and partners to meet their mission needs. Through the GeoPlatform, users have access to A one-stop shop to deliver trusted, nationally consistent data and services Authoritative data to support informed decision making Problem-solving applications and services that are built once ...

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The Geo-Wiki Platform

The Geo-Wiki Platform

Geo-Wiki is a platform which provides citizens with the means to engage in environmental monitoring of the earth by providing feedback on existing spatial information overlaid on satellite imagery or by contributing entirely new data. Data can be input via the traditional desktop platform or mobile devices, with campaigns and games used to incentivize input. Resulting data are available without ...

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GIS Data Repositories

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This list of data repositories was compiled by Karen Payne of the University of Georgia’s Information Technologies Outreach services, with funding provided by USAID, to point to free downloadable primary geographic datasets that may be useful in international humanitarian response. The repositories are grouped according to the tabs at the bottom of the sheet There are 17 groups of repositories. ...

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Accuracy Precision and Resolution Of GIS Data

Accuracy Precision and Resolution Of GIS Data

When collecting data that will be used in a geographic information system (GIS), it is important that you record it properly. In order to do this, you need to understand the difference between accuracy, precision and resolution. This short video provides a brief and easy to understand introduction to these concepts using target-shooting as an analogy.

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Top 10 Reasons to Share Your Data with ArcGIS Open Data

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Releasing your open data means much more than making a file download site to meet government transparency requirements. Publishing your data as open data makes your community and the whole world a better place to live. Open data enriches the programs and applications created by software developers. It stimulates local, regional, national, and international economies. Open data is eradicating polio ...

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Free GIS Datasets

Robin Wilson, a PhD student at the University of Southampton made a very interesting page that contains a categorised list of links to over 300 sites providing freely available geographic datasets – all ready for loading into a Geographic Information System. He said in his website : I kept coming across GIS datasets online that looked like they might be useful – for my ...

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Convert shapefiles to geoJSON via web interface

Convert shapefiles to geoJSON via web interface

This is a nice web interface for converting Shapefiles to geoJSON, the preferred format of vector geodata on the web. And yes, you can also convert back from geoJSON to ESRI Shapefile. Check it out: http://ogre.adc4gis.com/ geoJSON is plain text format that stores geometries and attributes in a standardized and human readable way (read the docs: http://geojson.org/). It is often ...

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SimpleGeo Public Spaces free Data

SimpleGeo Public Spaces free Data

From SimpleGeo : “We’re very excited to announce that the SimpleGeo’s CC0 Places data set is now available for download at no cost. If you’d like to get your hands on 21M+ POIs that cover 63 countries, we’re ready to hand that over to you in one file. The file is about 2GB in .ZIP format, and remember, with the ...

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