HPK: Haenam Paddy-field
General site details
| Site name | Haenam Paddy-field |
|---|---|
| AsiaFlux site code | HPK |
| Location | Haenam-gun, Jeollanamdo (Southwestern end of Korea Peninsular), Republic of Korea |
| Position | 34° 28'38" N, 126° 28'52" E |
| Elevation | 3 m a.s.l. |
| Slope | 0° |
| Terrain type | Flat |
| Area | - |
| Fetch | ~ 200m |
| Climate | Cfa |
| Mean annual air temperature | - |
| Mean annual precipitation | - |
| Vegetation type | Rice paddy |
| Dominant Species (Overstory) | Oryza sativa |
| Dominant Species (Understory) | - |
| Canopy height | ~ 1m |
| Age | Annual plant |
| LAI | - |
| Soil type | - |
| URL | http://www.ncam.kr/page/koflux/database/index.php |
Observation
Eddy Covariance method (CO2)
| System | Open path (CO2 flux, latent heat flux, CH4 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 | |
| Sampling frequency | 20 Hz |
| Averaging time | 30 min. |
| Data logger | CR3000, CSI |
| Data storage | HD |
| Original data | Raw data (and statistics) |
| CH4 | Open path CH4 analyzer (LI-7700, Li-Cor) |
Meteorology
| Observation items | Levels/Depth | Instrument |
|---|---|---|
| Global solar radiation (incoming) | 3.5 m | Net radiometer (CNR4, Kipp & Zonen, Netherlands) |
| Global solar radiation (outgoing) | 3.5 m | Net radiometer (CNR4) |
| Long-wave radiation (incoming) | 3.5 m | Net radiometer (CNR4) |
| Long-wave radiation (outgoing) | 3.5 m | Net radiometer (CNR4) |
| Net radiation | 3.5 m | Net radiometer (CNR4) |
| PPFD (incoming) | - | - |
| PPFD (outgoing) | - | - |
| Direct/diffuse radiation | - | - |
| Direct/diffuse PPFD | - | - |
| Air temperature | 3.5 m | Temperature and RH probe (HMP155, Vaisala, Finland) |
| Humidity | 3.5 m | Temperature and RH probe (HMP155, Vaisala, Finland) |
| Soil temperature | 0 ~ -0.1 m | Multiparameter smart sensor (CS655, 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 | Multiparameter smart sensor(CS655) |
| Wind speed | 3.5 m | 3D sonic anemometer (CSAT3, CSI) |
| Wind direction | 3.5 m | 3D sonic anemometer (CSAT3, CSI) |
| Barometric pressure | 3.5 m | Open path infrared gas analyzer (LI7500, Li-Cor) |
| Precipitation | 3.5 m | Tipping Bucket (WDR-205, Wedaen, Korea) |
| Water depth | Ground | Water level gauge (BYL-EV250, Korea) |
| Water temperature | Ground (Water) | Thermocouple probe (TCAV, CSI) |
Fluxes of non-CO2 gases
| Gas | CH4 |
| Method | Open path CH4 analyzer (LI-7700, Li-Cor) |
| Measurement height | 3.5 m |
| Data logger | Analyzer interface unit (LI-7550, Li-Cor) |
| Data storage | Raw data (and statistics) |
Other
| Soil respiration | - |
| Photosynthesis | - |
| Ecological Investigation | - |
Observation Period and Data Availability
| Measurement Period | From June 2016 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
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
Calibration Information
Open path gas analyzer was calibrated approximately every 6 months with standard CO2 gases and a dew point generator (LI610, Li-Cor). Other micrometeorological instruments are being calibrated approx. once in every 2 year.
Publication
N/A