Data Summary

Phenological Eyes Network (PEN) in Poker Flat Research Range(PFA) , 2018
Supplement to : Nagai S, Akitsu T, Saitoh TM, et al. 8 million phenological and sky images from 29 ecosystems from the Arctic to the tropics: the Phenological Eyes Network. Ecological Research,

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  • These datasets are long-term continuous phenological and sky images taken by time-lapse cameras through the Phenological Eyes Network in various ecosystems from the Arctic region.Phenological images are useful in recording the year-to-year variability in the timing of flowering, leaf-flush, leaf-coloring, and leaf-fall and detecting the characteristics of phenological patterns and timing sensitivity among species and ecosystems. They can also help interpret variations in carbon, water, and heat cycling in terrestrial ecosystems, and be used to obtain ground-truth data for the validation of satellite-observed products.These images provide (1) long-term, continuous detailed records of plant phenology that are more quantitative than in situ visual phenological observations of index trees; (2) basic information to explain the responsiveness, vulnerability, and resilience of ecosystem canopies and their functions and services to changes in climate; and (3) ground-truthing for the validation of satellite remote-sensing observations.

    Dataset citation

  • Nagai, S., 2019, Phenological Eyes Network (PEN) in Poker Flat Research Range(PFA) , 2018, 1.00, Arctic Data archive System (ADS), Japan,

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    Spatial coverage

  • N:  65.31°   S:  65.31°   E:  -148.95°   W:  -148.95°  

    Temporal coverage

  • 2018-01-01   -   2018-12-16


  •  CC BY 4.0


  • Shin Nagai