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    Author(s): Marie-Louise Smith; Mary E. Martin; Lucie Plourde; Scott V. Ollinger
    Date: 2003
    Source: IEEE Transactions of Geoscience and Remote Sensing 41(6):1332-1337
    Publication Series: Scientific Journal (JRNL)
    Station: Northeastern Research Station
    PDF: View PDF  (739.11 KB)

    Description

    Field studies among diverse biomes demonstrate that mass-based nitrogen concentration at leaf and canopy scales is strongly related to carbon uptake and cycling. Combined field and airborne imaging spectrometry studies demonstrate the capacity for accurate empirical estimation of forest canopy N concentration and other biochemical constituents at scales from forest stands to small landscapes. In this paper, we report on the utility of the first space-based imaging spectrometer, Hyperion, for estimation of temperate forest canopy N concentration as compared to that achieved with the airborne high-altitude imaging spectrometer, the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS). Overall accuracy of Hyperion estimates of forest canopy N concentration, as compared with field measurements, were within 0.25% dry mass, and AVIRIS-based estimates were within 0.19% dry mass, each well within the accuracy required to distinguish among forested ecosystems in nitrogen status.

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    Citation

    Smith, Marie-Louise; Martin, Mary E.; Plourde, Lucie; Ollinger, Scott V. 2003. Analysis of hyperspectral data for estimation of temperate forest canopy nitrogen concentration: comparison between an airborne (AVIRIS) and a spaceborne (Hyperion) sensor. IEEE Transactions of Geoscience and Remote Sensing 41(6):1332-1337

    Keywords

    Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), Hyperion, nitrogen, temperate forest

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