HFK:Haenam Farmland

General site detail (updated 16 May 2017)
 Site name
 Haenam Farmland
 (previous name: KoFlux Haenam site)
 AsiaFlux site code
 HFK
 Location Haenam-gun, Jeollanamdo (Southwestern end of   Korea Peninsular), Republic of Korea
 Position 34º33'14" N, 127º34'12" E
 Elevation 12m a.s.l.
 Slope 2º
 Terrain type
 Relatively flat except the southeast section with a    slope of about 4º
 Area Seasonal Cropland
 Fetch ~200 m
 Climate Cfa
 Mean annual air temperature
 13.3 ºC
 Mean annual precipitation
 1306 mm
 Vegetation type
 Rice/Farm land
 Domestic species (Overstory)
 -
 Dominant species (Understory)
 -
 Canopy height
 1 m
 Age -
 LAI 3-4
 Soil type
 Silt loam to loam
 URLhttp://www.ncam.kr/page/koflux/database/index.php

Observations
Eddy Covariance method (CO2)
 System Open-path system  (CO2 flux, latent heat flux)
 Wind speed 
 3D sonic anemometer(CSAT3)
 Air temperature
 3D sonic anemometer(CSAT3)
 Water vapor
 Open path infrared gas analyzer (LI-7500)
 CO2 Open path infrared gas analyzer (LI-7500)
 Measurement height
 20 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR3000, CSI
 Data storage
 HD
 Original data
 Raw data (and statistics)

Meteorology
 Observation items
  Levels/ Depth
 Instrument 
 Global solar radiation(incoming)
 15 m Net radiometer
 (CNR1, Kipp & Zonen, Netherlands)
 Global solar 
radiation (outgoing)
 15 m Net radiometer (CNR1)
 Long-wave radiation(incoming) 
 15 m Net radiometer (CNR1)
  Long-wave radiation(outgoing) 15 m Net radiometer (CNR1)
 Net radiation
 15 m Net radiometer (CNR1)
 PPFD (incoming)
 15 m
 Quantum sensor (LI-190, Li-Cor, USA)
 PPFD (outgoing)
 - 
 Direct / diffuse radiation
 - 
 Direct / diffuse PPFD
 - 
 Air temperature
 20 m Temperature and RH probe 
 (HMP45, Vaisala, Finland)
 Humidity 20 m Temperature and RH probe (HMP45)
 Soil temperature
 0 ~ ‐0.1 m 
 Soil thermocouple probe 
 (TCAV, Campbell Sci., Inc., USA)
 Soil heat flux
 ‐0.1 m 
 Heat flux plate (HFP01, Hukseflux Thermal Sensors B.V., Netherlands)
 Soil water 
 content 
 0 ~ ‐0.1 m Water content reflectometer (CS615, CSI)
 Wind speed
 20 m 3D sonic anemometer (CSAT3, CSI)
 Wind direction
 20 m 3D sonic anemometer (CSAT3)
 Barometric 
 pressure
 20 m Open path infrared gas analyzer (LI-7500, Li-Cor)
 Precipitation Ground Tipping Bucket (TE525, CSI)
Other
 Soil respiration
 -
 Photosynthesis -
 Ecological investigation
 -
 
Observation Period and Data Availability
 Measurement Period
 from July 2002 to present
 Measurement Frequency
 Continuous
 Data Availability
 N/A
Contact
 Joon Kim (joon [at] snu.ac.kr)
 Department of Landscape Architecture and Rural Systems Engineering,
 Seoul National University,  Complex Systems Science Laboratory
 Bld.36/Rm.108, Seoul National University, 1 Gwanak-ro, Gwanak-gu,  Seoul 08826, Korea
 Phone : +82-2-880-4663   Fax : +82-2-871-0230
 Minseok Kang (ms-kang [at] ncam.kr)
 National Center for Agro-Meteorology
 Bld.36/Rm.109, Seoul National University, 1 Gwanak-ro, Gwanak-gu,
 Seoul 08826, Korea
 Phone : +82-2-871-0232   Fax : +82-2-871-0230
 Calibration Information
 Open-path gas analyzer was calibrated approximately in every 6 months with standard CO2 gases and a dew point generator(LI610, Li-Cor,  USA).
 Other micro-meteorological instruments are being calibrated approx. one in every 2 year.
 Infrastructure
 Tower, Electrical power(AC)
 Research Fund
 Korea Meteorological Administration Research and Development
 Program under Grant KMIPA 2015-2023 and Weather Information
 Service Engine(WISE) project, KMIPA-2012-0001-2
 
 A3 Foresight Program of National Research Foundation of Korea

 Grant(code:1-8-3) from Sustainable Water Resources Research Center  of 21 Frontier R&D program
Publication
Kim, D., Y. Lim, M. Kang, and M. Choi* (2016). "Land Response to Atmosphere at Different Resolutions in the Common Land Model over East Asia." Advances in Atmospheric Sciences, 33(3): 391-408.

Kim, K.*, M. Kang, H. Jeong, and J. Kim (2013). "Comparison of Crop Growth and Evapotranspiration Simulations between Noah Multi Physics Model and CERES-Rice Model (in Korea with English abstract)." Korean Journal of Agricultural and Forest Meteorology 15(4): 282-290.

Yuan, R., M. Kang, et al. (2010). "Expansion of the planar-fit method to estimate flux over complex terrain." Meteorology and Atmospheric Physics 110(3-4): 123-133.

Kwon, H., J. Kim, et al. (2010). "Influence of the Asian Monsoon on net ecosystem carbon exchange in two major plant functional types in Korea." Biogeosciences 7: 1493-1504.

Jang, K., S. Kang, et al. (2010). "Mapping evapotranspiration using MODIS and MM5 Four-Dimensional Data Assimilation." Remote Sensing of Environment 114(3): 657-673.

Kwon, H., T.-Y. Park, et al. (2009). "Seasonality of Net Ecosystem Carbon Exchange in Two Major Plant Functional Types in Korea." Asia-Pacific Journal of Atmospheric Sciences 45(2): 149-163.

Kang, M., S. Park, et al. (2009). "Evapotranspiration from a Deciduous Forest in a Complex Terrain and a Heterogeneous Farmland Under Monsoon Climate." Asia-Pacific Journal of Atmospheric Sciences 45(2): 175-191.

Jang, K., S. Kang, et al. (2009). "Evaluation of Shortwave Irradiance and Evapotranspiration Derived from Moderate Resolution Imaging Spectroradiometer (MODIS)." Asia-Pacific Journal of Atmospheric Sciences 45(2): 233-246.

Ryu, Y., S. Kang, et al. (2008). "Evaluation of land surface radiation balance derived from moderate resolution imaging spectroradiometer (MODIS) over complex terrain and heterogeneous landscape on clear sky days." Agricultural and Forest Meteorology 148(10): 1538-1552.

Moon, S.-K., Y. Ryu, et al. (2007). "Quantifying the Spatial Heterogeneity of the Land Surface Parameters at the Two Contrasting KoFlux Sites by Semivariogram." Korean Journal of Agricultural and Forest Meteorology 9(2): 140-148.

Park, S.B., Moon, S.K., Kim, J., Hong, J., Lee, Y., Lee, H.C., Choi, Y. (2006) “Haenam” KoFlux site, AsiaFlux Newsletter, Issue No. 21, 19-21

Lee, Y.-H., Kim, J., Hong, J. (2006) The simulation of water vapor and carbon dioxide fluxes over irrigated farmland by modified Soil-Plant-Atmosphere model (mSPA), Proceedings of International workshop on flux estimation over diverse terrestrial ecosystems in Asia, AsiaFlux workshop 2006, Chiang Mai, Thailand, 37

Hong, J.K. et al.(2003), Inferring Regional Scale Surface Heat Flux around FK KoFlux Site: From One Point Tower Measurement to MM5 Mesoscale Model, Korean Journal of Agricultural and Forest Meteorology, 5(2), 138-149.

Lee, H.C., Hong, J., Cho, C.H., Choi, B.C., Oh, S.N., Kim, J. (2003) Surface exchange of energy and carbon dioxide between the atmosphere and a farmland in Haeman, Korea, Korean Journal of Agricultural and Forest Meteorology, Vol. 5, No. 2, 61-69