[LHC]
The Lien-Hua-Chih Hydrometeorological Study Site
  • Site Description
  • Observation
  • Researchers
  • Note
  • Eddy Correlation Method

    System Open path Eddy Covariance (sensible heat and latent heat and CO2 fluxes)
    Wind speed Three- dimensional sonic anemometer-thermometer (Campbell, CSAT3A)
    Air temperature Three- dimensional sonic anemometer-thermometer (Campbell, CSAT3A)
    Water Vapor Open path Gas Analyzer (Campbell, EC-150)
    CO2 Open path Gas Analyzer (Campbell, EC-150)
    Measurement height 25 m
    Sampling frequency 10 Hz
    Averaging time 60 min
    Data logger CR1000
    Data storage CF CARD
    Original data (Raw data or statistics) Raw Data

    Meteorology

    Observation items Levels / Depth Instrument
    Global solar radiation (incoming) - -
    Global solar radiation (outgoing) - -
    Long-wave radiation (incoming) - -
    Long-wave radiation (outgoing) - -
    Net radiation 23 m Radiometer (Campbell Scientific Inc, REBS Q*7.1)
    PPFD (incoming) 23m Pyranometer Sensor (LI-200SZ)
    PPFD (outgoing) - -
    Direct/diffuse radiation - -
    Direct/diffuse PPFD - -
    Air temperature 0, 5, 10,15, 20 m Platinum resistant thermometer and capacitive hygrometer (HMP45C, Vaisala)
    Humidity 0, 5, 10,15, 20 m Platinum resistant thermometer and capacitive hygrometer (HMP45C, Vaisala)
    Soil temperature 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1.5 m (under ground) Thermal couple (copper constant) thermometer
    Soil heat flux 0.05 m Heat flux plate
    Soil water content 0.1, 0.3, 0.5, 0.7, 0.9 m (three points) Capacitance Probe (EnviroSMARTTM, v1.2)
    Wind speed 20 m Wind Monitor (R.M. Young 05103 )
    Wind direction 20 m Wind Monitor (R.M. Young 05103 )
    Barometric pressure - -
    Precipitation 20 m, Ground (six points) Rain Gauge (Campbell Scientific Inc, TE525MM)
    CO2 concentration 0, 5, 10, 15, 20 m Close path (LI-COR, LI-820)

    Other

    Lysimeter Decagon Devices Inc, Gee Passive Capillary (-0.5 m)
    Throughfall Rain Gauge (six points )
    Sapflow Thermal dissipation (eight)
    Soil respiration chamber Home made