The Plantwise Blog

The USDA Agricultural Research Service, funded by the National Oceanic and Atmospheric Administration (NOAA) and the National Aeronautics and Space Administration (NASA), is developing a computer model to map evapotranspiration data from Landsat satellites, which can be used to remotely assess crop health.

The US Geological Survey Landsat satellites have been in orbit since 1972. These satellites, which take an image of each point on the Earth’s surface once every 16-18 days, have thermal and optical sensors to collect land imagery. This is used by agriculture and forestry researchers and global change analysts to assess changes in vegetation, soil moisture content and mineral deposits.

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