Data Summary

Continuous canopy and understory spectral reflectance measurements of a sparse black spruce forest at Poker Flat Research Range (PFRR), interior Alaska (Year 2017)
Supplement to : Kobayashi H, Nagai S, Kim Y, Yang W, Ikeda K, Ikawa H, Nagano H, Suzuki R. In Situ Observations Reveal How Spectral Reflectance Responds to Growing Season Phenology of an Open Evergreen Forest in Alaska. Remote Sensing. 2018; 10(7):1071.

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    Summary

  • Plant phenology timings, such as spring green-up and autumn senescence, are essential state information characterizing biological responses and terrestrial carbon cycles. Current efforts for the in-situ reflectance measurements are not enough to obtain the exact interpretation of how seasonal spectral signature responds to phenological stages in boreal evergreen needleleaf forests. This data set shows the in situ continuous measurements of spectral reflectance in a boreal forest in interior Alaska. We deployed two field-based spectroradiometer systems in an open black spruce forest. These two spectroradiometer systems were used to obtain canopy scale (overstory + understory) and understory reflectances. The data set includes the overstory and understory incoming and reflected hemispherical spectral irradiance data (Level 1), and spectral reflectance computed by the in- and out-going spectral data (Level 2). Because the reflected hemispherical irradiance contains the reflection from tower structure for overstory measurements. The further reflectance correction was applied for the measurements at the tower top level (Level 3).

    Dataset citation

  • Kobayashi, H., S. Nagai, Y. Kim, W. Yang, K. Ikeda, H. Ikawa, H. Nagano, R. Suzuki, 2018, Continuous canopy and understory spectral reflectance measurements of a sparse black spruce forest at Poker Flat Research Range (PFRR), interior Alaska (Year 2017), 1.00, Arctic Data archive System (ADS), Japan, https://ads.nipr.ac.jp/dataset/A20181212-004

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    Spatial coverage

  • N:  65.12°   S:  65.12°   E:  -147.48°   W:  -147.48°  

    Temporal coverage

  • 2015-03-21   -   2018-10-31

    License

  •  CC BY 4.0

DATA CONTORIBUTOR & GROUP

  • Hideki Kobayashi
    (Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology)
  • Shin Nagai
    (Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology)
  • Yongwon Kim
    (International Arctic Research Center, University of Alaska, Fairbanks)
  • Wei Yang
    (Center for Environmental Remote Sensing, Chiba University)
  • Kyoko Ikeda
    (Japan Agency for Marine-Earth Science and Technology)
  • Hiroki Ikawa
    (Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization)
  • Hirohiko Nagano
    (Nuclear Science and Engineering Center, Japan Atomic Energy Age)
  • Rikie Suzuki
    (Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology)

PARAMETERS

  • VISIBLE RADIANCE

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