We know that there are 2 major types of GIS data:
We can assume vector data as guidelines for how to render the data. The better way to visualize it is to believe it as a spreadsheet with columns that include our regular data, but in count it always has an additional column called “geometry”.
That column contains one or additional coordinates that illustrate how to portray the point, line or polygon that represents that feature on the features of the terrain.
If vector data is non-figurative, raster data is factual. Raster data is a bitmap representation such as a TIFF or JPEG. This layout is usually used for satellite imagery, aerial photography, digital elevation models and topographic maps, etc.
Everybody who is really interested to play with the geographical data these is the free resource providing platforms.
Esri as we all know that this organisation carries decent work in providing necessary data. It covers approximately 249,000+ open data from more than 5,000+ groups worldwide.
Natural Earth Data best fits for the needs of cartographers.
Used in both satellite and aerial imagery, the USGS Earth Explorer is one of the biggest free sources for data. It helps to download data outside of the United States without any problem.
OSM is open to the public, while it is created by the public. So we can say that the accuracy differs based on the creator. In general, the accuracy is very good.
Sentinel-2 is one of the highest resolution satellite imagery accessible to the public for free. Its user interface is the Copernicus Open Access Hub.
But we have to register to create an account. And the wait time will be worthful. Then we have to select our area of interest by right-clicking on the map. In the end, select the S2A or S2B product we want to download and wait till it gets download.
Contact us to know more about it.