Landsat Data vs. Information


The primary feature of the next-generation Landsat system that my colleagues and I developed at NASA/Goddard is the way that it acquires information.  The traditional Landsat system acquires data.  It is left to the researchers to sift through the data to find the information.  Generally speaking, information is new data.  Instead of acquiring data continuously, the next-generation Landsat system would only acquire data that was different than previously acquired data.  This has a major impact on data volume, data quality, calibration, and product retrieval.  The technology to operate the system in this manner is available.  The primary obstacle to implementation of the new system will be the acceptance by the Landsat user community.  Once the advantages of the new system are understood, it is expected that it will be enthusiastically supported.



This page was last modified on 17 February 2015


Landsat for the 21st Century