landsat


GIS Data

Artistic concept of Landsat 9. Source: NASA.Artistic concept of Landsat 9. Source: NASA.

Landsat 9 Will Launch in 2020

The Landsat series of satellites has been imaging the Earth’s surface for nearly 50 years, providing vital imagery for a range of purposes from the natural sciences to civil administration and conflict monitoring. NASA and the USGS recently announced that the next iteration of the program, Landsat 9, is due to launch in 2020.

Spatial Analysis

Elevation models show the SS Sansip (left) and the SS Samvurn (right) as imaged by a multibeam echosounder. Both of these ships leave sediment plumes detectable by Landsat 8 during ebb and flood tides. Source: Matthias Baeye et alElevation models show the SS Sansip (left) and the SS Samvurn (right) as imaged by a multibeam echosounder. Both of these ships leave sediment plumes detectable by Landsat 8 during ebb and flood tides. Source: Matthias Baeye et al

Using Landsat Imagery to Find Shipwrecks

Satellite imagery from Landsat 8 has been used by a Belgian marine research institute to detect shallow water shipwrecks. Satellite imagery from Landsat 8 can detect the concentration of sand and silt particles in the ocean, which can then be used to pinpoint a potential shipwreck location.

GIS Data

Since January 1, 2000, more than 4.3 million scenes have been captured by Landsat satellites and made available to the public. Graph by Joshua Stevens, using data collected from the U.S. Geological Survey acquisitions archive.Since January 1, 2000, more than 4.3 million scenes have been captured by Landsat satellites and made available to the public. Graph by Joshua Stevens, using data collected from the U.S. Geological Survey acquisitions archive.

Cloud Computing Used to Analyze Landsat Imagery and Detect Deforestation

Landsat, NASA’s longest running initiative for the acquisition of Earth imagery, has generated nearly 50 trillion pixels of data by capturing one image per season, of every place on Earth, for the past 43 years, providing a treasure trove of data for researchers.

GIS Career and Jobs

iGETT participants learning GIS in the lab. Source: NASA.iGETT participants learning GIS in the lab. Source: NASA.

Ensuring the Future of GIS with Geospatial Education

The U.S. government is helping to guarantee the future of GIS by investing billions of dollars in geospatial education. The hope is that this funding will go towards developing a workforce that is able to use geographic information in order to solve local, national, and global problems. Of source, the […]

GIS Data

Landsat 8 Satellite Imagery Available for Free Via Amazon Web Services

Amazon recently announced the availability of  85,000 Landsat 8 scenes through Amazon Web Services (AWS): Landsat on AWS. The Landsat scenes have been made available via the landsat-pds bucket in the Amazon S3 US West (Oregon) region. The announcement came via a blog post on Amazon: As we said in December, we hope to accelerate […]

GIS Data

Landsat-derived forest disturbance rate (stand replacing), 1990-2000, aggregated to 500m grid. Source: NASA.Landsat-derived forest disturbance rate (stand replacing), 1990-2000, aggregated to 500m grid. Source: NASA.

Mapping Forest Disturbance with Landsat

The Landsat Ecosystem Disturbance Adaptive Processing System (LEDAPS) takes advantage of the 30 year Landsat archive to inventory recent disturbances and forest-cover change. Using mid-summer, cloud free Landsat data from the Global Land Survey (GLS) project, LEDAPS first corrects the images to remove atmospheric effects from surface reflectance (source code for LEDAPS) before applying […]