Amazon Web Services Offers Free Satellite Imagery


The following CIO.com article is by Joab Jackson of the International Data Group (IDG), posted March 19, 2015 and with the title above:

Amazon Web Services (AWS) is offering its customers free use of over 85,000 satellite images, setting the stage for new types of geographically-oriented cloud applications. The images, from the Landsat 8 observation satellite, are already available at no cost directly from the U.S. Geological Survey (USGS), which oversees the Landsat program. But the public agency isn’t in the position to offer the data for high-volume use by third-party applications, which means developers have had to spend considerable time and resources creating ways to download, store, and prepare the data for use.

“Because the imagery is available on AWS, researchers and software developers can use any of our on-demand services to perform analysis and create new products without needing to worry about storage or bandwidth costs,” said Jed Sundwall, Amazon open data technical business manager, in a blog post.

The Landsat imagery is probably the most comprehensive publically available set of satellite images of the earth. It covers the entire globe and is frequently updated. It is widely used across a variety of fields, including regional planning, surveillance, agriculture, cartography, geology, forestry, and education.

A number of AWS customers are already using Landsat imagery for their own services, according to Sundwall. Geographic information systems software vendor Esri uses the dataset to demonstrate the capabilities of its ArcGIS Online viewer, MathWorks.

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Landsat 7, launched in 1999, is the second most recent addition to the Landsat program. The Landsat program is the longest running enterprise for acquisition of satellite imagery of Earth. On July 23, 1972, the Earth Resources Technology Satellite was launched. This was eventually renamed Landsat. The most recent, Landsat 8, was launched on February 11, 2013. The instruments on the Landsat satellites have acquired millions of images. The images, archived in the United States and at Landsat receiving stations around the world, are a unique resource for global change research and applications in agriculture, cartography, geology, forestry, regional planning, surveillance and education, and can be viewed through the USGS ‘EarthExplorer’ website. Landsat 7 data has eight spectral bands with spatial resolutions ranging from 15 to 60 meters; the temporal resolution is 16 days. Source: Wikipedia – Landsat program

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