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CFK: Cheongmicheon Farmlanbd Site

General site detail (Updated 15 September 2009)
 Site name
 Cheongmicheon Farmland Site
 AsiaFlux site code
 CFK
 Location Yeuju, Republic of Korea
 Position 37º 9' 35" N, 127º 39' 10"E
 Elevation 141 m a.s.l.
 Slope 0º
 Terrain type
 Flat
 Area -
 Fetch -
 Climate Warm Continental Climate(Dwa)
 Mean annual air temperature
 11.5ºC (2008)
 Mean annual precipitation
 1170mm (2008)
 Vegetation type
 Rice paddy
 Domestic species (Overstory)
 Oryza sativa
 Dominant species (Understory)
 -
 Canopy height
 -1 m
 Age -
 LAI -
 Soil type
 -

Observations
Eddy Covariance method (CO2)
 System Open-path system
 Wind speed
 RM81000 3D Sonic Anemometer (RMYoung, USA)
 Air temperature
 RM81000 3D Sonic Anemometer (RMYoung, USA)
 Water vapor
 KH20 Hygrometer(Campbell Sci., USA)
 CO2 -
 Measurement height
 4 m / 10 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR1000, Campbell Sci., Inc., USA
 Data storage
 HD
 Original data
 Raw and ststistics

Meteorology
 Observation items
  Levels/ Depth
 Instrument 
 Global solar radiation(incoming)
 -  
 Global solar 
radiation (outgoing)
 -  
 Long-wave radiation(outgoing) 
 -
  
 Long-wave radiation(outgoing) 
 -
  
 Net radiation
 10 m
  Net Radiometer
 (CRN2, Kipp & Zonen, Netherlands)
 PPFD (incoming)
 10 m
  Quantum Sensor (LI-190, Li-cor, USA)
 PPFD (outgoing)
 - 
 Direct / diffuse radiation
 - 
 Direct / diffuse PPFD
 - 
 Air temperature
 4 m / 10 m  Vaisala Weather Transmitter
  (WXT510, Vaisal, Finland)
 Humidity 4 m / 10 m  Vaisala Weather Transmitter
 (WXT510, Vaisal, Finland)
 Soil temperature
 0.1m / 0.3m  TCAVs (Campbell Sci. , USA)
 Soil heat flux
 - 
  
 Soil water 
 content 
 0.1m / 0.3m  CS615 (Campbell Sci. , USA)
 Wind speed
 4 m / 10 m   Vaisala Weather Transmitter 
   (WXT510, Vaisala, Finland)
 Wind direction
 4 m / 10 m   Vaisala Weather Transmitter 
   (WXT510, Vaisala, Finland)
 Barometric 
 pressure
 4 m / 10 m   Vaisala Weather Transmitter 
   (WXT510, Vaisala, Finland)
 Precipitation 4 m/10 m   Vaisala Weather Transmitter 
   (WXT510, Vaisala, Finland)
 CO2 concentration
 -
  
Other
 Soil respiration
 -
 Photosynthesis -
 Ecological investigation
 -
 
Observation Period and Data Availability
 Measurement Period
 August 2008 till date
 Measurement Frequency
 Continuous
 Data Availability
 N/A
Contact
 Jung-Hoon Lee (ljh0817 [at] hsc.re.kr)
 Yeon-Kil Lee (sugawon [at] hsc.re.kr) 
 Sung Won Jung (swjung [at] hsc.re.kr)
 Hydrological Survey Center
 Leadersplaza II B/D 601, 2223-2 Daehwa-dong, Ilsanseo-gu, Goyan-si
 Gyeonggi-do, 411-805, Republic of Korea
 Phone : +82-31-920-0800 Fax: +82-31-920-0890
 www.hsc.re.kr   
Calibration Information
 KH2O were calibrated approximately every 6 months with a dew point  generator(LI610, Li-Cor, USA).
 Other micrometeorological instruments are being calibrated every 6  months.  
Infrastructure
 Tower, Electrical power(AC), facilities for communication  
Research Fund
 Evapotranspiration Measurement Projgect(Hydrological Survey Center)  
 
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