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
-
ObservationsEddy 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
-
Direct / diffuse PPFD
-
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
-
Soil water
content
-
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)