IZM: Oizumi Urban Park
General site details
| Site name | Oizumi Urban Park |
|---|---|
| AsiaFlux site code | IZM |
| Location | Sakai, Osaka, Japan |
| Position | 34°33'48.49"N, 135°32'0.54"E |
| Elevation | 22 m (Google Earth) |
| Slope | 0.11 degree, North: 0.23 degree |
| Terrain type | Flat plain field |
| Area | 101.5 ha |
| Fetch | 910 m for west and southwest, and 1100 m for northwest |
| Climate | Warm temperate (Cfa) |
| Mean annual air temperature | 15.6ºC |
| Mean annual precipitation | 1206.9 mm |
| Vegetation type | Urban park and residential area including mixed forest, grass, and farmland |
| Dominant Species (Overstory) | - |
| Dominant Species (Understory) | - |
| Canopy height | 13.1 ± 2.9 m |
| Age | - |
| LAI | 3.2 ～ 5.7 |
| Soil type | - |
Observation
Eddy Covariance method (CO2)
| System | Open-path eddy covariance |
|---|---|
| Wind speed | Sonic anemometer (CSAT3, Campbell Scientific Inc.) |
| Air temperature | Sonic anemometer (CSAT3, Campbell Scientific Inc.) |
| Water vapor | Open-path CO2/H2O analyzer (EC150, Campbell Scientific Inc.) |
| CO2 | Open-path CO2/H2O analyzer (EC150, Campbell Scientific Inc.) |
| Measurement height | 30 m |
| Sampling frequency | 10 Hz |
| Averaging time | 30 minutes |
| Data logger | CR1000 (Campbell Scientific Inc.) |
| Data storage | CF Card |
| Original data | Raw data |
Meteorology
| Observation items | Levels/Depth | Instrument |
|---|---|---|
| Global solar radiation(incoming) | 30 m | Quantum sensor (ML-01, EKO) |
| Global solar radiation (outgoing) | 30 m | Quantum sensor (ML-01, EKO) |
| Long-wave radiation(outgoing) | - | |
| Long-wave radiation(outgoing) | - | |
| Net radiation | - | |
| PPFD (incoming) | - | |
| PPFD (outgoing) | - | |
| Direct / diffuse radiation | - | |
| Air temperature | 30 m | Platinum resistance thermometer and capacitive (HMP50, Vaisala) |
| Humidity | 30 m | Platinum resistance thermometer and capacitive (HMP50, Vaisala) |
| Soil temperature | - | |
| Soil heat flux | - | |
| Wind speed | 30 m | Sonic anemometer (CSAT3, Campbell Scientific Inc.) |
| Wind direction | 30 m | Sonic anemometer (CSAT3, Campbell Scientific Inc.) |
| Barometric pressure | 30 m | Barometer (PTB110, Vaisala) |
| Precipitation | - | |
| CO2 concentration | 30 m | Open-path CO2/H2O analyzer (EC150, Campbell Scientific Inc.) |
| H2O concentration | 30 m | IRGA (EC150, Campbell Scientific Inc.,) |
| Surface temperature | 30 m | Radiation thermometer (IT-450N, Horiba) |
Observation Period and Data Availability
| Measurement Period | from January 2015 to January 2016 |
|---|---|
| Measurement Frequency | Continuous |
| Data Availability | - |
Contact
Masahito Ueyama (mueyama[at]omu.ac.jp)
Osaka Metropolitan University, Graduate School of Agriculture
1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
Tel: +81-72-254-9432
https://www.omu.ac.jp/agri/ecolmet/ueyama/research02/index.html
Infrastructure
Wake-up Tower, Electric Power (AC)
Research Fund
The Sumitomo Foundation (143205)
Calibration Information
Ooizumi Urban Park (only Japanese)
https://www.osaka-park.or.jp/nanbu/oizumi/main.html
Publication
Ueyama, M., Taguchi, A., Takano, T,. 2021. Water vapor emission from urban landscapes in Sakai, Japan, Journal of Hydrology, 598, 126384.
Ueyama, M., Ando, T., 2020. Cooling effect of an urban park by enhanced heat transport efficiency. Journal of Agricultural Meteorology, 76, 148-153.
Ueyama, M., and And, T., 2016. Diurnal, weekly, seasonal and spatial variabilities in carbon dioxide flux in different urban landscapes in Sakai. Atmospheric Chemistry and Physics, 16, 14727-14740.