![]() ![]() Lastly, there’s the difficult case of needing high resolution, recently collected imagery (especially if you plan to derive commercial works from that imagery and need access to the raw files). That imagery can also be downloaded from either Earth on AWS or the Earth Engine Catalog-you can also browse when the most recent imagery was collected for each state (and at what resolution) at this free online coverage map hosted by ESRI. In the U.S., the USDA’s National Agricultural Imagery Program (NAIP) captures 1m/pixel or better imagery for the entire contiguous United States once every other year. Make sure you familiarize yourself with the data before downloading a lot of it!įor high-resolution aerial imagery, your options are much more limited. A warning: these are very large files and the imagery itself is lower resolution than what you might expect to see on a typical web map. MODIS (NASA’s satellite constellation which images the earth every 1-2 days)ĭata from all three of these satellite constellations can be downloaded for free from either Earth on AWS or Google’s Earth Engine Catalog.Landsat 8 (the USGS’s satellite which images the earth once every 16 days).Sentinel-2 (the European Space Agency’s constellation of satellites imaging the entire landmass of the earth once every five days).Here’s where things get interesting-we’ve written previously about the explosion of freely available, openly licensed, and constantly updating satellite imagery in our blog post, An Introduction to Satellite Imagery and Machine Learning. For larger-area basemaps, satellite imagery providers make more sense: and Australia and has a very simple user interface available through any web browser. For high-resolution aerial imagery, NearMap orthographics provide great coverage in the U.S. Rather than license imagery from Google that they’re, in turn, licensing from imagery providers, it usually makes more sense to go directly to the source. ![]() ![]() Google’s Maps API is notoriously stingy in this regard, with its terms of service even limiting your right to display content derived from Google imagery on a map that isn’t also provided by Google. tracing building footprints or other cartographic features), you should consider a paid option that allows for derivative works to be produced. If you’re considering deriving a commercial product from the imagery you’re browsing (e.g. RockWare’s clients can understand the impact of these types of geological events so that they will know how to act upon them.Some other great sources of non-commercial, non-downloadable imagery are: If a toxic spill leaks into the water table, RockWare can model the spread and speed of the contamination using animations. Using this data - Google Earth Pro produces interactive 3D visuals, which RockWare shares with their customers. With a GPS device and specialty tools, RockWare plots the data on a map to gain intuitive 3D understanding of the rocks and then imports this data into Google Earth Pro. RockWare, a geological software company based in Golden, Colorado founded in 1983, is known for taking field measurements at the Front Range of the Rocky Mountains to determine the mysteries underneath the surface that are causing the tilts of rock formations. For each state, you can find out demographic information in regards to the age, education, gender and income for the current year or the five-year projected. This data could be useful for businesses to conduct marketing research. And the free version of Google Earth only allows you to import image files that are up to a max texture size, but Google Earth Pro offers Super Image Overlays that are more than the max texture size.ĭata in Google Earth Pro that I find most compelling is the U.S. The free version of Google Earth requires you to manually geo-locate geographic information system (GIS) images, but Google Earth Pro helps you automatically find them. The free version of Google Earth lets you print screen resolution images, whereas Google Earth Pro offers premium high resolution photos. There are several differences between the free version of Google Earth and Google Earth Pro. The Google Earth desktop client hit the billion download mark in October 2011. Under Keyhole, the application was known as EarthViewer 3D. Google Earth was created after Google acquired CIA-funded Keyhole Inc. Google Earth is a geospatial software application that displays a virtual globe, which offers the ability to analyze and capture geographical data. Google Earth Pro used to cost $399 per year. Today Google has announced that Google Earth Pro is now available for free. ![]()
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