First Landsat 7 image of Sioux Falls, South Dakota
This pan sharpened color infrared image of Sioux Falls, South Dakota is from the first scene acquired by Landsat 7's Enhanced Thematic Mapper Plus (ETM+) sensor on April 18, 1999. The image is shown using the near infrared, red, and green bands (Bands 4,3,2). This band combination is useful for analyzing vegetation because chlorophyll reflects near infrared light and appears as red in this image.
Learn more about Landsat 7 at www.usgs.gov/landsat-missions/landsat-7