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Map Layer Info

     
 
100-Meter Resolution Satellite View of the United States

What this map layer shows:

Simulated-natural-color images of the United States at a ground resolution of 100 meters. This map layer is comprised of four separate data files for the conterminous United States, Alaska, Hawaii, and Puerto Rico and the U.S. Virgin Islands.

A 100-Meter Satellite View with Shaded Relief map layer is also available.

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Background Information
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The Landsat Project is a joint effort of the U.S. Geological Survey (USGS) and the National Aeronautics and Space Administration (NASA). Since 1972, NASA has developed and launched eight Landsat satellites. The USGS is responsible for ground data reception, processing, product generation, and archiving. The primary purpose of Landsat is to provide regular, repeated coverage to support the analysis of changes on the Earth's land surface. Landsat images provide a steady flow of data for use in a wide range of applications such as global change research, agriculture, forestry, geology, mapping, water quality, and oceanography. Landsat 8 was successfully launched February 11, 2013.

The Satellite View map layers were produced from Landsat Thematic Mapper (TM) imagery, from bands 2, 4, and 7 of the Landsat 4 (operational from 1982-2001) and Landsat 5 satellites. The result is 200-meter-resolution simulated-natural-color images of the United States and Hawaii. Vegetation is generally green, with forests in darker green and grasslands, shrublands, or vegetative tundra in lighter green. Areas of high reflectance, including urban areas, rock, and dry bare soil, are shown in shades of pink. Very bright areas, such as snow and ice, are colored blue. The color of water bodies is influenced by natural and man-made factors such as differences in depth, salinity, pollution, and sediment load, which affect the reflectance of the area. There is one image for the conterminous United States and one for Hawaii. The images were developed by the National Atlas of the United States® with data provided by the USGS Center for Earth Resources Observation and Science (EROS). EROS archives, processes, and distributes remotely sensed data, including satellite images and aerial photographs, and works with agencies and organizations around the world to support studies using remotely sensed data.

For further information on the source data, see the Landsat fact sheet. Mosaics of TM images, adjusted to correct for positional accuracy and relief displacement, and covering an area of 5 degrees latitude by 6 degrees longitude, are available through the Landsat Orthorectified TM Mosaic page.

The 100-Meter Resolution Satellite View of the United States map layer was prepared by the National Atlas of the United States and is delivered in the Albers Equal-Area Conic map projection. This map layer is part of our collection of fundamental digital cartographic data known as 1. This collection includes base map data in vector format at 1:1,000,000-scale and in image format at 100-meter ground resolution. Read more about the 1.

 

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