GRK: Gimje Rice paddy


General site detail (updated 15 August 2014)
 Site name
 Gimje Rice paddy
 AsiaFlux site code
 GRK
 Location Sinyong-ri, Buryang-myeon, Gimje-si,
 Republic of Korea
 Position 35°44´42.4˝N, 126°51´8.8˝E
 Elevation 21 m a.s.l
 Slope N/A
 Terrain type
 flat
 Area farmland
 Fetch 500m x 500m
 Climate Temperate(snow - winter dry - hot summer(Dwa))
 Mean annual air temperature
 12.9 ºC
 Mean annual precipitation
 1253 mm
 Vegetation type
 Crops
 Domestic species (Overstory)
 Rice and Barley
 Dominant species (Understory)
 -
 Canopy height
 1.2 m
 Age -
 LAI 5
 Soil type
 Silt Loam

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
 5.2 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)
 2.0 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
 Global solar 
radiation (outgoing)
 2.0 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
 Long-wave radiation(incoming) 
 2.0 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
  Long-wave radiation(outgoing) 2.0 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
 Net radiation
 2.0 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
 PPFD (incoming)
 -
 PPFD (outgoing)
 - 
 Direct / diffuse radiation
 - 
 Direct / diffuse PPFD
 - 
 Air temperature
 3.25, 1.5 m Temperature and RH probe
 (HMP45C, Vaisala, Finland)
 Humidity 3.25, 1.5 m
 Temperature and RH probe
 (HMP45C, Vaisala, Finland)
 Soil temperature
 0.1 m 
 Soil thermocouple probe
 (TCAV, Campbell Sci., Inc., USA)
 Soil heat flux
 0.1 m 
 Heat Flux plate 
 (HFP-1, Campbell Sci., Inc., USA)
 Soil water 
 content 
 0.1 m  Water content reflectometer
 (CS-616, Campbell Sci. Inc., USA)
 Wind speed
 5.2 m 
 3D sonic anemometer
 (CSAT3, Campbell Sci., Inc., USA)
 Wind direction
 5.2 m 3D sonic anemometer
 (CSAT3, Campbell Sci., Inc., USA)
 Barometric 
 pressure
 5.2 m Open path infrared gas analyzer
 (LI-7500, Li-Cor, USA)
 Precipitation 2.25 m
 Tipping bucket rain gauge
 COconcentration
 5.2 m Open path infrared gas analyzer
 (LI-7500, Li-Cor Biogeosciences, USA)
 H2O concentration 5.2 m Open path infrared gas analyzer
 (LI-7500, Li-Cor Biogeosciences, USA)
  CH4 concentration 5.2 m Open path laser spectroscopy gas analyzer (LI-7700, Li-Cor Biogeosciences, USA; instrument ownership: KRISS)
Fluxes of non-CO2 gases
 Gas
 CH4, Open path infrared gas analyzer (LI-7700, Li-Cor Biosciences, USA; instrument ownership: KRISS)
 Method Eddy covariance method
 Measurement height
 5.2 m
 Data logger CR3000 (Campbell Sci., Inc., USA)
 Data storage CF card
Other
 Soil respiration
 -
 Photosynthesis -
 Ecological investigation
 LAI, Plant height
 
Observation Period and data Availability
 Measurement Period
 From 2011 to present
 Measurement Frequency
 Continuous
 Data Availability
 -
Contact
 Kyo-Moon Shim (kmshim@korea.kr)
 Yong-Seok Kim(cyberdoli@korea.kr)
 National Academy of Agricultural Science
 Rural Development Administration
 166, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do,  
 565-851, Republic of Korea
 Phone : +82-63-238-2518  Fax : +82-63-238-3823
 Minseok Kang(ms-kang@yonsei.ac.kr)
 National Center for Agro-Meteorology
 Bld.#36 (Rm.#109), Seoul National University,
 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, South Korea
 Phone : +82-2-871-0236  Fax : +82-2-871-0230
 Myung-Pyo Jung(jung7504@korea.kr)
 In-Tae Choi(finder@korea.kr)
 Sung-Hyun Min(shmin@kunkuk.ac.kr)
 URL    http://ncam.kr/page/koflux/database/siteInfo/GFK/siteDescription.html
 Calibration Information
 Open-path analyzer (LI-7500) were calibrated approximately in every 6 months with standard CO2 gases and a dew point generator(LI-610, Li-Cor, USA)
 Infrastructure
 Tower, Electrical power(AC)
 Research Fund
 Research Program for Agricultural Science & Technology Development (Project No. PJ907228)

 Development of Measurement Technology for solving Climate Change (grant 12011023)
Publication
Min, S. H., K. M. Shim et al. (2013). "Seasonal Variation of Carbon Dioxide and Energy Fluxes During the Rice Cropping Season at Rice-barley Double Cropping Paddy Field of Gimje." Korean Journal of Agricultural and Forest Meteorology 15(4): 71-74. (in Korean with English abstract)

Min, S. H., K. M. Shim et al. (2014). "Seasonal Variation of CO2 exchange During the Barley Growing Season at Rice-barley Double Cropping Paddy Field of Gimje, Korea." Korean Journal of Agricultural and Forest Meteorology 16(2): 137-145. (in Korean with English abstract)