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Read below to see our go-to list of free satellite imagery sources. And remember – if you just want to lookat satellite imagery without downloading the data, check out our list of 25 satellite maps. 1. USGS Earth Explorer. Unlock the power of the USGS Earth Explorer because it’s not just for the United States. No matter where you live, the ...
- 25 Satellite Maps To See Earth in New Ways
To the editor: SOAR Earth is fast becoming a great platform...
- Global Land Cover Data Sources
1. Esri Land Cover 10m. The Esri Land Cover (10m) is really...
- How to Download Sentinel-2 Imagery
Download Sentinel-1 and Sentinel-2 Satellite Data. If you...
- 25 Satellite Maps To See Earth in New Ways
- USGS EarthExplorer. The USGS EarthExplorer is an online imagery platform (satellite, aerial, UAV) that allows users to view satellite imagery of the earth, including live views of the earth.
- NOAA Data Access Viewer. The NOAA Data Access Viewer is a great tool for those who need to find data from different sources. The website has been developed as a way for users to find data from multiple sources in one location, which can be difficult depending on the type of data they are looking for.
- LandViewer from EOS. LandViewer is a free online GIS database. It has an easy to learn interface and gives users quick access to the most widely used satellite images.
- Copernicus Open Access Hub. Copernicus Open Access Hub is a very good place to start if you’re looking for Sentinel’s free satellite imagery. If you’re specifically interested in Sentinel-1 or 2, then check out the other sources that offer this imagery as well, as they might have a better interface.
OpenAerialMap creates a place for mappers to store and share their work with the rest of the community. Through this database, everyone has a go to point to start helping out, whether it's drone pilots in areas of crisis, or mappers who want to trace from home. If you're a provider of aerial imagery and would like to get involved, get started ...
- Earth Observation Satellites
- Types of Satellite Imagery
- What Is The Spatial Resolution of Satellite Imagery?
- Orbits
- Coverage
- Tasking A Satellite
- Historical Satellite Imagery
- How Does Satellite Imagery Pricing Work?
- How to Access Satellite Imagery
- Using Satellite Imagery
Before we dive into buying and using satellite data, let’s go back to basics. The Earth is a complex system with a huge variety of geophysical processes, many of which are interrelated. Earth-orbiting satellites are among the best ways to understand these from both local and global scales—repetitively and continuously. Earth is surrounded by satell...
The types of satellite imagery a satellite generates is dependent on the kind of image-capturing method it uses. Earth observation satellites use remote sensing technologies to monitor and assess changes in Earth’s physical, biological, and chemical compositions. Remote sensing regards the acquisition of information from a distance. EO satellites c...
Spatial resolution is one of the key parameters in satellite imagery and refers to the level of detail that can be retrieved from a scene. It is the size of one pixel on the groundand can be measured in several ways. One of the most common is the Ground Sample Distance (GSD), the distance between center points of each pixel. GSD is a measure of how...
Satellites are designed on the ground and launched into orbits that are tailored to their purpose. Here are a few examples:
Satellites can allow for truly global coverage even above the most remote locations. Coverage essentially refers to the amount of land that a satellite can image.
As mentioned earlier, satellite tasking provides you with the agile ability to task satellites to capture the areas of interest (AOIs) you need when you need it most. This means that you can request and collect imagery on-demand in the case of time-sensitive projects that require close to real-time insights. As aforementioned, tasking means that yo...
For some use cases, such as land-use change analysis, you may want to look back several years in timefor a given area. So, the further back in time you look, the lower the quality of the images may be. Still, there many great satellites in operation today that are great candidates for looking into the past, as shown in the figure below. Known as ar...
There are two types to consider when budgeting for satellite data: free or commercial data sources. As shown in the chart below, there tends to be an inverse relationship between the spatial resolution of imagery and the cost. Let’s look at both free and commercial satellite imagery: A chart depicting the relationship between spatial resolution and...
With trillions of pixels of our planet being captured from space every day, there’s never been so much data within reach. Free satellite data sources are easily found directly on provider websites. When looking for commercial satellite imagery, purchasing and using satellite imagery can become a little more complicated. Historically, purchasing com...
Now that we’ve looked at what satellite imagery entails and where you can find and analyze it, how can you make use of it? Satellite images have become a priceless repository of geospatial data that drive solutions in a wide variety of fields—spanning across industries and creating significant societal, environmental, and economic impacts.
- Female
- EOS Data Analytics
- Senior Scientist
- USGS EarthExplorer: Free-To-Use Satellite Imagery. The USGS agency has the longest record of collecting free GIS data (free satellite images, aerial, UAV), which is.
- Landviewer: Free Access To Satellite Images. LandViewer is a free GIS database with an easy-to-master. interface that gives access to the most widely used satellite images, allows high-resolution satellite imagery free.
- Copernicus Open Access Hub: Up-to-date Free Satellite Imagery. Formerly the “Sentinels Scientific Data Hub”, the ESA’s open access portal is able to quench anyone’s thirst for.
- Sentinel Hub: Free High-Quality Satellite Images From Multiple Sources. Sentinel Hub provides access to a wide range of open-source satellite imagery via its two services: EO Browser and Sentinel Playground.
Google Earth Pro on desktop is available for users with advanced feature needs. Import and export GIS data, and go back in time with historical imagery. Available on PC, Mac, or Linux. You are ...
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Apr 28, 2022 · 4. USGS Satellite imagery – Landsat, MODIS, and ASTER data. Earth Explorer is a free in-browser platform to access Landsat satellite imagery. Landsat is a joint NASA/USGS program that provides the longest continuous space-based record of Earth’s land in existence. The first images are over 40 years old.
