[TOE]
Tomakomai Experimental Forest
  • Site Description
  • Observation
  • Researchers
  • Note
  • Eddy correlation method

    System Closed path system (CO2 flux, latent heat flux)
    Wind speed Three-dimensional sonic anemometer (Kaijo DAT-600, Japan)
    Air temperature Three-dimensional sonic anemometer (Kaijo DAT-600, Japan)
    Water Vapor Closed path analyzer (LI-6262)
    CO2 Closed path analyzer (LI-6262)
    Measurement height 21m
    Sampling frequency 10 HZ
    Averaging time 30 min
    Data logger TEAC DR-MK3
    Data storage MO
    Original data (Raw data or statistics) Raw

    Meteorology

    Observation items Levels / Depth Instrument
    Global solar radiation (incoming)    
    Global solar radiation (outgoing)    
    Long-wave radiation (incoming)    
    Long-wave radiation (outgoing)    
    Net radiation    
    PPFD (incoming)   EIKO ML-020P
    PPFD (outgoing)    
    Direct/diffuse radiation    
    Direct/diffuse PPFD    
    Air temperature 19m Vaisalan
    Humidity 19m Vaisala
    Soil temperature 0cm, 5cm, 10cm, 20cm, 50cm, 100cm  
    Soil heat flux    
    Soil water content    
    Wind speed 19m  
    Wind direction 19m  
    Barometric pressure    
    Precipitation    
    CO2 concentration   LI-6262, Li-Cor, USA

    Other

    Soil respiration In 1999 by LI-6400
    Photosynthesis For Q.cricpula in 1999 by LI-6400
    Ecological Investigation Tree census at every year