![]() It’s possible to do it when all datasets are in the same format. For example, you downloaded population data obtained from SEDAC but you want to add in some national sales data generated by your company. Often cartographers and GIS analysts use open-source or publically available map data as a starting point then add some other data or additional insight. You can search the available data sets by theme such as agriculture, climate, infrastructure, population, poverty, etc., or choose to data sets that include historical data, reaching back to the 18th century and that look ahead to a century from now. In addition to the gallery of downloadable maps, which includes a gridded population of the world, SEDAC offers a variety of data sets of socioeconomic data. Its mission is to support the integration of socioeconomic and earth science data and to serve as an ‘Information Gateway’ between earth sciences and social sciences. SEDAC is a data center in NASA’s Earth Observing System Data and Information System (EOSDIS). NASA’s Socioeconomic Data and Applications Center (SEDAC) The raster datasets also provide hillshade relief for aesthetically pleasing maps. The available data spans the globe and includes the key cultural and physical data you may need for your map. This is a great place to look if you simply want a base map to start your project. Natural Earth Data offers vector and raster datasets that are in the public domain so you can modify them, use them and distribute them in any way you want without worrying about infringing copyrights or attribution. However, as with most crowdsourcing efforts, the quality is generally pretty good for most use cases, and the amount of data available is impressive. Open Street Maps (OSM) is a crowdsourcing platform for GIS data meaning that all of the data is created by the public, so the accuracy can vary based on who created it and how. This website is a great place to start if you don’t know exactly what you need or want to see what options are available to you in a particular region. Robin Wilson, an expert in remote sensing and GIS. FreeGISDataīy far the most complete compilation of free map data, FreeGISData contains links to over 500 data sets, categorized for easy browsing by data type and country. Among other sources, Earth Explorer includes high-quality Landsat and Sentinel 2 imagery. The Earth Explorer user interface is relatively user-friendly so you can find what you need without too much effort. The available imagery covers most of the globe and is often updated. You can download imagery simply by creating a free account. The USGS Earth Explorer is an amazing resource for free satellite and aerial imagery. ![]() ![]() Here is a list of the five that, in our opinion, are among the most useful. You just have to know where to look for it. There are plenty of governments and other agencies that make their geospatial data available for free. First, You Have to Find Itĭepending on what kind of map you want to make, and for what region or country, finding map data can be easy. ![]() Free map data is a great place to start when making a map, using MAPublisher and Adobe Illustrator to make it your own. However, there is plenty of publically available free map data out there to be used by graphic designers, and any cartographer that doesn’t have the means to generate their own data. Unless you are a GIS professional or a professional cartographer, finding the raw data to make a map may seem like a rather large barrier to success. ![]()
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