Users, Uses, and Value of Landsat Satellite Imagery-Results from the 2012 Survey of Users.

摘要

Landsat satellites have been operating since 1972, providing a continuous global record of the Earth's land surface. The imagery is currently available at no cost through the U.S. Geological Survey (USGS). We conducted a survey in early 2012 to explore who uses Landsat imagery, how they use the imagery, and what the value of the imagery is to them. The survey was sent to all users registered with USGS (users who have created a login and password to access imagery through USGS directly) who had accessed Landsat imagery in the year prior to the survey (n = 44,731). All contact with users was via email and the survey was administered online. The response rate was 30% with 13,473 users responding. Of those users, 11,275 were current Landsat users who had used the imagery in their work in the year prior to the survey. The results reported below apply to current Landsat users registered with USGS. Landsat