Feb 1, 2013 • Landsat is a critical and invaluable tool for characterizing the landscape and mapping it over time. Landsat data provides a baseline of observations for science about how human activities on the land affect water quality, affect wildlife habitat, affect air quality. Without it we wouldn’t be able to really understand how […]
Location: Long Island, Bahamas The red colors in this Landsat false-color infrared composite image of Long Island, Bahamas, give us an indication of its lush vegetation. The different shades of blue, west of the island represent varying water depths in a very shallow area. Landsat 7 imagery has been used to map the world’s coral reefs.
Location: Chao Phraya River, Thailand Landsat TM image showing sediment in the Gulf of Thailand at the mouth of the Chao Phraya River. Colors represent different concentrations of sediment. Sediment load in rivers can be affected by land-use practices and rainfall variations. The curving horizontal lines are “trails” of sediment stirred up by trolling fishing […]
Location: Harrisburg, Pennsylvania This Landsat view shows Harrisburg and the Appalachian Mountains of central Pennsylvania. The Piedmont province is visible in the lower right corner. The Great Valley runs SW-NE across the center of view, and the Valley and Ridge province occupies the northwest portion of scene. The city of Harrisburg is the blue-grey patch next […]