Top Free GIS Data Sources Best Global Raster and Vector Datasets
1 Natural Earth Data
Natural Earth Data is first on the list because it does an amazing job to suit the needs of cartographers. All the key cultural and physical vector GIS datasets are at a global scale. The raster datasets also provide beautiful hillshade relief basemaps for your map.
The best part is Natural Earth Data is in public domain. You have the right to disseminate and modify the data in any manner.
From a cartography standpoint, it’s a no-brainer. Download Natural Earth Data now.
Advantages | Data Types |
---|---|
|
|
2 USGS Earth Explorer
For Earth observers seeking remotely sensed data, the USGS Earth Explorer is your sole destination.
We all know that the USGS’s new Earth Explorer gives you access to one of the largest databases of satellite and aerial imagery. But I bet you didn’t know you can download data outside of the United States.
A friendly user-interface makes accessing data simple. It even has a bulk download application. Register for a free account because this is the ultimate database for free remote sensing data.
Advantages | Data Types |
---|---|
|
|
Also try: USGS Earth Resources Observation and Science (EROS) Center, USGS GloVIS, USGS GTOPO30, USGS Earthquake Hazards Program
3 OpenStreetMap
GIS users are harnessing the power of OpenStreetMap (OSM) as a means to crowdsource data from multiple users.
The result of crowdsourcing is highly detailed data. I say detailed with cautious optimism. OSM is open to the public and created by the public. This means that accuracy varies based on the creator. From my experience, the accuracy looked very good. And people like you and me are working on completeness every day.
For GIS analysts seeking high spatial resolution detail, OpenStreetMap data is exactly what you are looking for. How much data is being created every second into OpenStreetMap? There’s a map for that – OSM Show Me The Way.
Advantages | Data Types |
---|---|
|
|
4 NASA’s Socioeconomic Data and Applications Center (SEDAC)
NASA’s Socioeconomic Data and Applications Center (SEDAC) provides valuable geographic information to learn about human interactions in the environment.
SEDAC had a wide variety of coarse global free GIS data – from fertilizer applications in agriculture to global infant mortality rate by state/province.
Another neat thing about SEDAC is the map viewer. You can select GIS data themes and view thematic maps of the socioeconomic data. If you want to massage the data yourself, there’s that option too.
Advantages | Data Types |
---|---|
|
|
5 Open Topography
Open Topography provides a portal to high spatial resolution topographic data and tools.
If you gave me a 5 second countdown to choose one GIS data type to work with for the rest of my life…. I’d probably start screaming LIDAAARRRRR! Yes, I’d be all dramatic because you gave me a 5 second countdown to respond.
We all know that LiDAR data is a rare, precious GIS resource. This is why Open Topography is so useful. It answers the question: “Where can we find LiDAR data?”
Advantages | Data Types |
---|---|
|
|
6 UNEP Environmental Data Explorer
The United Nations Environmental Data Explorer’s online database holds more than 500 different variables.
I must admit. I found it a bit difficult to explore the GIS data. The interfaces takes awhile to get used to, but it’s all here covering themes like climate, disasters and ecosystems.
Quick tip: Click advanced. Select “Geospatial Data Sets”. Now, only GIS data will be filtered.
Advantages | Data Types |
---|---|
|
|
7 FAO GeoNetwork
Well, it’s another United Nations global GIS dataset. If you’re craving for agriculture and fisheries related GIS data, keep the Food and Agriculture Organization of the United Nations (FAO) in mind.
FAO GeoNetwork provides satellite imagery and spatial data to support sustainable development in agriculture, fisheries and food security. The GIS Gateway is where you can find data organized categorically.
Advantages | Data Types |
---|---|
|
|
8 NASA Earth Observations (NEO)
NASA’s Earth Observations (NEO) is focused on providing global satellite imagery as accessible as possible.
Imagine seeing daily snapshots of climate and environmental conditions of Earth. Over 50 different global datasets are represented with NASA’s Earth observations. They are accessible in JPEG, PNG, Google Earth and GeoTIFF formats.
You can’t live without NASA’s GIS data when it comes understanding our global environment from space.
Advantages | Data Types |
---|---|
|
|
9 Sentinel Satellite Data
The European Space Agency’s Sentinel satellite is now the highest spatial resolution available to the public for free. One scene after the other, data has been rolling out on a user interface called the Sentinels Scientific Data Hub.
You’ll have to register. But it’s worth the time. For ortho basemaps, it doesn’t get any better than the global coverage that the Sentinel 2 satellites provide…
…And you can even obtain synthetic aperture radar data at no cost from Sentinel-1.
Advantages | Data Types |
---|---|
|
|
10 Terra Populus
Terra Populus (TerraPop for short) is the only system that incorporates and integrates both census data from over 160 countries around the world, as well as environmental data describing land cover, land use, and climate. The census data in TerraPop include individual- and household-level records from more than 80 countries around the world and aggregate data from another 80 countries and spans up to six decades, from the 1960s to the present.
The unique thing about it is how it can be used to explore temporal and spatial changes. Not only researchers, but everyone now has a tool to obtain and investigate transformative changes in the human-environment system in geographic space.
Advantages | Data Types |
---|---|
|
|
11 ISCGM Global Map
It’s time to look at what the International Steering Committee for Global Mapping website has to offer.
Admittedly, not the prettiest website of the bunch, Global Map still packs some serious punch with their free GIS data. Global land cover and percent tree cover are the two pivotal datasets here. But that’s not all. Cultural and natural vector datasets are here too.
Registration is required. But not that painful for getting ISCGM free GIS data.
Advantages | Data Types |
---|---|
|
|
0 Response to "Top Free GIS Data Sources Best Global Raster and Vector Datasets"
Post a Comment