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Imaging spectrometry for Earth remote sensing.

A F Goetz, G Vane, J E Solomon

    Science (New York, N.Y.)
    |June 7, 1985
    PubMed
    Summary
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    Imaging spectrometry enables direct identification of Earth's surface materials from aircraft and spacecraft. This advanced remote sensing technique provides laboratory-like spectra for detailed analysis.

    Area of Science:

    • Earth Science
    • Remote Sensing Technology
    • Spectroscopy

    Background:

    • Imaging spectrometry is a novel remote sensing technique.
    • It is now technically feasible for airborne and spaceborne applications.
    • Current remote sensing often relies on statistical approaches.

    Purpose of the Study:

    • To demonstrate the capability of imaging spectrometry for remote sensing.
    • To highlight the potential for direct identification of surface materials.
    • To introduce advances in data processing for this technique.

    Main Methods:

    • Utilizing airborne and spaceborne sensors to acquire data.
    • Sampling absorption features within the reflectance spectrum.
    • Employing advanced computer technology for data reduction and storage.

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    Main Results:

    • Demonstrated remote, direct identification of surface materials on a per-picture-element basis.
    • Sensors acquire images in 100-200 contiguous spectral bands.
    • Achieved laboratory-like spectral data remotely.

    Conclusions:

    • Imaging spectrometry represents a significant advancement in remote sensing.
    • New analytical techniques are being developed for massive datasets.
    • A deterministic approach to data analysis is emphasized, driving new digital image-processing methodologies.