[NFT]
National Institute of Fruit Tree Science
  • Site Description
  • Observation
  • Researchers
  • Note
  • Eddy Correlation Method

    System Open pass
    Wind speed Gill research
    Air temperature -
    Water Vapor Advanet E009b
    CO2 Advanet E009b
    Measurement height 3.5 m
    Sampling frequency 10Hz
    Averaging time 20min
    Data logger Not used
    Data storage Directly to PC (Dell)
    Original data (Raw data or statistics) -

    Meteorology

    Observation items Levels / Depth Instrument
    Global solar radiation (incoming) N/A Thermocouple type pyranometer (MS-61, EKO)
    Global solar radiation (outgoing) - -
    Long-wave radiation (incoming) - -
    Long-wave radiation (outgoing) - -
    Net radiation 5.0m Ventilated radiometer(CN11, EKO)
    PPFD (incoming) - -
    PPFD (outgoing) - -
    Direct/diffuse radiation - -
    Direct/diffuse PPFD - -
    Air temperature Just above canopy surface and above 0.8m Ventilated thermocouple psychrometer (handmade)
    Humidity Just above canopy surface and above 0.8m Dew point hygrometer (handmade)
    Soil temperature 0.05 m Thermocouple
    Soil heat flux 0.05 m N/A
    Soil water content 0.1, 0.2 m DIK-1600
    Wind speed - -
    Wind direction - -
    Barometric pressure - -
    Precipitation - -
    CO2 concentration N/A IRGA (Yokokawa electric )

    Other

    Soil respiration Not measured
    Photosynthesis Not measured
    Ecological Investigation LAI, Fruit yield