Descartes Labs has compiled some of the massive amount of data sent back from the satellites orbiting Earth into a 3.1-trillion pixel composite image of Earth’s surface.
landsat
GIS Data
Advances in Landsat Sensors
Since those first images in 1972, multiple Landsat satellites have been launched with the ability to take increasingly detailed pictures of our world.
GIS Data
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.
GIS Data
Use of Earth Observation Data for Oil and Gas
Andrew Cutts, owner of ACGeospatial, discusses the role of GIS and earth observation data in the oil and gas industry in this guest article.
Spatial Analysis
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
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 Data
River Width GIS Data Created from 1,756 Landsat Images
Researchers used 1,756 Landsat images to develop a GIS database of river widths for the entire North American continent.
GIS Data
Landsat 8 Data Users Handbook
Launched in 2013 by NASA, Landsat 8 is the latest satellite in the series. The mission of the orbiting satellite is to map and track changes on Earth. Under the control of the USGS, the satellite continues the more than forty year earth observation legacy of the Landsat program. Available in […]
GIS Career and Jobs
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
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 […]
GIS Data
First Landsat Spacecraft Launched – Today in Geospatial – July 23
On July 23, 1972, the first Landsat spacecraft was launched. At the time it was known as the Earth Resources Technology Satellite and it was the first satellite launched to study the earth’s landmasses. In 1975, the name was changed to Landsat. Since then, this program has been continuously monitoring changes […]