SMK: KoFlux Seolmacheon site (SMK)

General site detail (updated 25 November 2011)
 Site name
 KoFlux Seolmacheon site (SMK)
 AsiaFlux site code
 SMK
 Location Paju, Republic of Korea
 Position 37º 56' 19.99" N, 126º 57' 16.94" E
 Elevation 293 m a.s.l
 Slope -
 Terrain type
 Complex terrain
 Area Mountainous area
 Fetch 1000 m x 1000 m
 Climate Temperate(snow - winter dry - hot summer(Dwa))
 Mean annual air temperature
 -
 Mean annual precipitation
 -
 Vegetation type
 Mixed forest
 Domestic species (Overstory)
 Q. variaabilis, Q. mongolica, Q. serrata, P.  koraiensis
 Dominant species (Understory)
 -
 Canopy height
 15 m
 Age 20-40 years (2011)
 LAI -
 Soil type
 -

Observations
Eddy Covariance method (CO2)
 System Open-path system  (CO2 flux, latent heat flux)
 Wind speed 
 3D sonic anemometer(CSAT3, Campbell Sci., Inc., USA)
 Air temperature
 3D sonic anemometer(CSAT3, Campbell Sci., Inc., USA)
 Water vapor
 Open path(LI-7500, Li-Cor, USA)
 CO2 Open path(LI-7500, Li-Cor, USA)
 Measurement height
 19.2 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR3000  (Campbell, USA)
 Data storage
 HD
 Original data
 Statistics (Raw data is also available)

Meteorology
 Observation items
  Levels/ Depth
 Instrument 
 Global solar radiation(incoming)
 19.2 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
 Global solar 
radiation (outgoing)
 19.2 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
 Long-wave radiation(incoming) 
 19.2 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
  Long-wave radiation(outgoing) 19.2 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
 Net radiation
 19.2 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
 PPFD (incoming)
 -
 PPFD (outgoing)
 - 
 Direct / diffuse radiation
 - 
 Direct / diffuse PPFD
 - 
 Air temperature
 19.2 m 

 19.2, 15.2 m
 19.2, 2 m 
 Thermocouple temperature sensor 3D sonic  anemometer(CSAT3, Campbell Sci., Inc., USA)  3D sonic anemometer(81000, RM.Young, USA)  AWS (WXT-510, Vaisala, Finland)
 Humidity 19.2 m 
 19.2, 2 m 
 Open path(LI-7500, Li-Cor, USA) 
 AWS (WXT-510, Vaisala, Finland)
 Soil temperature
 0 ~ 0.05 m,  0.05 ~ 0.1 m,  0.1 ~ 0.2 m Soil thermocouple probe
 (TCAV, Campbell Sci., Inc., USA)
 Soil heat flux
 ~ 0.01 m 
  Heat Flux plate 
 (HFP01SC, Campbell Sci., Inc., USA)
 Soil water 
 content 
 0 ~ 0.1 m  Water content reflectometer
 (CS-616, Campbell Sci. Inc., USA)
 Wind speed
 19.2 m 

 19.2, 15.2 m
 19.2, 2 m 
 Thermocouple temperature sensor 3D sonic  anemometer(CSAT3, Campbell Sci., Inc., USA)  3D sonic anemometer(81000, RM.Young, USA)  AWS (WXT-510, Vaisala, Finland)
 Wind direction
 19.2 m 

 19.2, 15.2 m
 19.2, 2 m 
 Thermocouple temperature sensor 3D sonic  anemometer(CSAT3, Campbell Sci., Inc., USA)  3D sonic anemometer(81000, RM.Young, USA)  AWS (WXT-510, Vaisala, Finland)
 Barometric 
 pressure
 19.2 m 
 19.2, 2 m 
 Open path(LI-7500, Li-Cor, USA) 
 AWS (WXT-510, Vaisala, Finland)
 Precipitation 19.2, 2 m  AWS (WXT-510, Vaisala, Finland)
 COconcentration
 19.2 m Open path(LI-7500, Li-Cor, USA) 
 H2O concentration -
Other
 Soil respiration
 -
 Photosynthesis -
 Ecological investigation
 LAI 
 
Observation Period and data Availability
 Measurement Period
 From August 2007 to present
 Measurement Frequency
 Continuous
 Data Availability
 2008 in AsiaFlux Database
Contact
 Minseok Kang (ms-kang [at] yonsei.ac.kr)
 National Center for Agro-Meteorology, Seoul National  UniversityBld.36/Rm.109, Seoul National University, 1 Gwanak-ro,  Gwanak-gu, Seoul 151-742, Korea
 Phone : +82-2-871-0236 Fax : +82-2-871-0230
 Joon Kim (joon [at] snu.ac.kr)
 Department of Landscape Architecture & Rural Systems Engineering,  Seoul National UniversityComplex Systems Science Laboratory,  Bld.36/Rm.108, Seoul National University, 1 Gwanak-ro, Gwanak-gu,  Seoul 151-742, Korea
 Phone : +82-2-880-4663 Fax : +82-2-365-5163
 Jung-Hoon Lee (ljh0817 [at] kict.re.kr)
 Hydrological Survey Center, 301 KINTEX Zone, Daehwa-Dong,
 Ilsanseo-Gu,Goyang-Si, Gyeonggi-Do, 411-806, Korea
Calibration Information
 Open-path analyzers were calibrated approximately every 6 months  with standard CO2 gases and a dew point generator
 (LI610, Li-Cor, USA)
Publication
 Kwon, H., J.-H. Lee, et al. (2009). "Seasonal Variations of  Evapotranspiration Observed in a Mixed forest in the Seolmacheon  Catchment." Korean Journal of Agricultural and Forest Meteorology 11:  39-47.