Landsat Science Products

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The USGS has developed Landsat-derived Level 2 and Level 3 science products that reduce the amount of time users spend on data processing and provide research quality, applications-ready information to monitor, assess and project how changes in the Earth's surface may affect communities and ecosystems. The Landsat Program is a series of Earth-observing satellites co-managed by USGS and NASA, and offers the longest continuous space-based record of Earth’s land in existence. Every day, Landsat satellites orbit Earth and provide essential information to help land managers and policymakers make informed decisions about our natural resources and environment. All Landsat data are distributed by the USGS at no charge from EarthExplorer, GloVis NEXT and the LandsatLook Viewer. To learn more about the Landsat Program please visit https://usgs.gov/landsat or follow us on Twitter @USGSLandsat or Facebook @NASA.Landsat.
 

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Length: 00:02:24

Location Taken: Sioux Falls, SD, US

Transcript

The USGS has developed Landsat-derived Level 2 and Level 3 science products that reduce the amount of time users spend on data processing and provide research quality, applications-ready information to monitor, assess and project how changes in the Earth's surface may affect communities and ecosystems.

Landsat science products are available for the conterminous U.S., Alaska, and Hawaii, from 1982 to present and are processed into Analysis Ready Data (ARD) tiles to allow for large scale analysis with minimum additional user effort. Landsat Level 2 science products consist of Surface Reflectance, and Surface Temperature. Landsat Level 3 science products consist of Dynamic Surface Water Extent, Fractional Snow Covered Area, and Burned Area. All five products are shown below for ARD tile h004 v002 acquired on July 23rd, 2017. 

Let's take a closer look at these Landsat products.

The Landsat Surface Reflectance product measures the fraction of incoming solar radiation reflected from the Earth's surface to the Landsat sensor.

The Surface Reflectance product helps improve the comparison between multiple Landsat observations over the same region by accounting for atmospheric effects such as aerosols and thin clouds.

The Landsat Surface Temperature product measures the temperature of the Earth's surface in Kelvin, and is an important parameter in energy balance and hydrologic modeling. These data are also useful for monitoring crop and vegetation health, urban heat island effects, and extreme heat events.

The Landsat Dynamic Surface Water Extent product provides information on the existence and condition of surface water that is useful in determining impacts by large scale land cover and land use changes, and increasing water demands.

The Landsat Fractional Snow Covered Area product provides per-pixel fractional snow cover maps that support the measurement and monitoring of snow cover patterns across topographically complex mountainous regions.

The Landsat Burned Area product identifies fire locations and burned areas. It's used to quantify trends and patterns, characterize drivers of fire recurrence, and inform projections of future fire pattern behavior. All Landsat products are available for download at no charge from the USGS. 

For more information, visit usgs.gov