Landsat Missions

Landsat Data Continuity Mission Underfly with Landsat 7

On March 29-30, 2013, the Landsat Data Continuity Mission (later named Landsat 8) was in position under the Landsat 7 satellite. This provided opportunities for near-coincident data collection from both satellites. The images below show a portion of the Great Salt Lake in Utah, and the Dolan Springs, Arizona area, the latter of which is used in Landsat calibration activities.

The Scan Line Corrector (SLC) lines are clearly visible in Landsat 7 images. Since the LDCM is in a slightly lower orbit, the pixel resolution is approximately 29.3 meters.

Great Salt Lake, Utah

The Great Salt Lake and surrounding waters provide for vivid imagery. The dark color of the deep salt water of the Great Salt Lake gives way to shallower, stored water confinements, to green mineral-rich sediment along the coastline.

before
after
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These images (Path 38 Row 31), were both acquired on March 29, 2013 by Landsat 7 (left) and Landsat 8 (right).

View full Landsat 7 SLC-off scene (Bands 5,4,3)
View full LDCM/Landsat 8 scene (Bands 6,5,4)

 

Dolan Springs, Arizona

The desert area of Dolan Springs, Arizona is a vicarious calibration site, at which airborne and field spectroradiometeric measurements are collected and used to characterize, calibrate, and validate the radiomeric performance of the Landsat sensors.

before
after
Download images

These images (Path 38 Row 35), were both acquired on March 29, 2013 by Landsat 7 (left) and Landsat 8 (right).

View full Landsat 7 SLC-off scene (Bands 5,4,1)
View full LDCM/Landsat 8 scene (Bands 6,5,2)