The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey.In 1972, the launch of ERTS-1 (Earth Resources Technology Satellite, later renamed Landsat 1) started the era of a series of...
 Light Detection and Ranging (LIDAR) is a technology similar to RADAR that can be used to create high-resolution digital elevation models (DEMs) with vertical accuracy as good as 10 cm. LIDAR equipment, which includes a laser scanner, a Global...
National Land Imaging (NLI) was an interagency effort (begun in 2006) to develop a long-term plan to achieve technical, financial, and managerial stability for operational land imaging. In August 2007, the working group released the recommended plan in a...
Remote sensing is the process of detecting and monitoring the physical characteristics of an area by measuring its reflected and emitted radiation at a distance from the targeted area. Special cameras collect remotely sensed images of the Earth, which...
This massive database updates our knowledge of the Nation’s land cover and documents precisely where land cover change has occurred between 2001 and 2006. NLCD is used for thousands of applications in such diverse investigations as ecosystem status and...
Landsat image data processing takes 1 to 5 days. Once a request is submitted and the data is processed, an email notification containing the direct download URL is sent.After Landsat scenes are processed, they are also made available for immediate...
The majority of USGS aircraft photography is used for cartographic purposes. Image distortion is minimized when photographs are acquired looking straight down or vertically.Learn more:National Aerial Photography ProgramNational High Altitude Photography...
For many locations outside the U.S., there may be scenes that were collected by the sensor but the data is not archived or distributed by the USGS. These scenes may still be available from other International Ground Stations. Please note that this data...
Scene acquisition times for Landsat images are listed in the online metadata files, which can be accessed by searching the particular scene on EarthExplorer or GloVis. Scenes processed after February 9, 2009 also include the acquisition times in the .mtl...
LandsatLook images are full resolution .jpeg files that are included as options when downloading Landsat data from EarthExplorer, GloVis, or via the LandsatLook Viewer.The following products are available, and are useful for image selection and visual...