Earth Resources Observation and Science (EROS) Center

A landscape scene in Senegal, photographed in 1983 by U.S. Geological Survey Scientist G. Gray Tappan as part of his work on West African land cover. Tappan photographed the scene again in 1994. Rephotography of multiple areas over three decades informed the work published in the USGS Earth Resources Observation and Science Center book "

A landscape scene in Senegal, photographed in 1994 by U.S. Geological Survey Scientist G. Gray Tappan as part of his work on West African land cover. Tappan previously photographed the scene in 1983. Rephotography of multiple areas over three decades informed the work published in the USGS Earth Resources Observation and Science Center book "

A video on USGS EROS monitoring of the 2004 Indian Ocean earthquake and tsunami.
 

A scene along a road in Senegal, photographed in 2004 by U.S. Geological Survey Scientist G. Gray Tappan as part of his work on West African land cover. Tappan had previously photographed the scene in 1994. Rephotography of multiple areas over three decades informed the work published in the USGS Earth Resources Observation and Science Center book "

Herd of giraffes in Niger, West Africa

Dryland agriculture in the Northwestern Great Plains ecoregion.
 

A 2002 animation of the NASA AQUA satellite
 

A video about the 30th Anniversary of USGS Landsat.

This satellite mosaic of the Hoosier State was created from several Landsat scenes stitched together to create one seamless image. Data from the National Elevation Dataset (NED) is also incorporated into the image. The names of major cities and county boundaries have been added.

This true-color image was taken by the Enhanced Thematic Mapper Plus (ETM+) sensor aboard the Landsat 7 satellite on September 12, 2001, at roughly 11:30 a.m. Eastern Daylight Savings Time. A day after the attack, smoke continues to billow out of the collapsed Twin Towers.

National Aerial Photography Program (NAPP) - Little Rock, AR - Color Infrad - March 25, 2001