Site name
Sakai City Office
AsiaFlux site code
SAC
Location Sakai, Osaka, Japan
Position 34o34’25’’N, 135o28’80’’E
Elevation 17 m
Slope 0.0024o(east - west) , 0.0030o (north - south)
Terrain type
Flat
Area -
Fetch Approximately 2.5 km for west, and more than
5 km for other directions
Climate Warm temperate (Cfa)
Mean annual air temperature
15.6oC
Mean annual precipitation
1206.9 mm
Vegetation type
NO vegetation
Dominant species (Overstory)
-
Dominant species (Understory)
-
Canopy height
10.7 ± 3.1 m
Age -
LAI 0
Soil type
Concrete and Asphalt
ObservationsEddy Covariance method (CO2) System Open-path eddy covariance
Wind speed
Sonic anemometer (SAT550, Kaijo), until October, 2018
Sonic anemometer (CSAT3, Campbell Scientific Inc.),
present
Air temperature
Sonic anemometer (SAT550, Kaijo), until October, 2018
Sonic anemometer (CSAT3, Campbell Scientific Inc.),
present
Water vapor
Open-path CO2/H2O analyzer (LI-7500, Li-COR), until
October 2018
Open-path CO2/H2O analyzer (EC150, Campbell Scientific
Inc.), present
CO2 Open-path CO2/H2O analyzer (LI-7500, Li-COR), until
October 2018
Open-path CO2/H2O analyzer (EC150, Campbell Scientific
Inc.), present
Measurement height
111.7 m
Sampling frequency
10 Hz
Averaging time
30 min.
Data logger
CR1000X (Campbell Scientific Inc.)
Data storage
microSD Card
Original data
Raw data
Meteorology Observation items
Levels/ Depth
Instrument
Global solar radiation
(incoming)
111 m Quantum sensor (ML-020VM, Eko,Japan)
Global solar radiation
(outgoing)
111 m
Quantum sensor (ML-020VM, Eko,Japan)
Long-wave radiation
(outgoing)
-
Long-wave radiation
(outgoing)
-
Net radiation
-
PPFD (incoming)
-
PPFD (outgoing)
-
Direct / diffuse radiation
-
Direct / diffuse PPFD
-
Air temperature
108 m Platinum resistance thermometer and
capacitive (HMP50, Vaisala)
Humidity 108 m Platinum resistance thermometer and
capacitive (HMP50, Vaisala)
Soil temperature
-
Soil heat flux
-
Soil water content
-
Wind speed
111.7 m Sonic anemometer (SAT550, Kaijo), until
October, 2018
Sonic anemometer CSAT3, Campbell
Scientific Inc.), present
Wind direction
111.7 m Sonic anemometer (SAT550, Kaijo), until
October, 2018
Sonic anemometer CSAT3, Campbell
Scientific Inc.), present
Barometric pressure
- Barometer (PTB110, Vaisala)
Barometer (Li-7700, Li-Cor)
Precipitation -
CO2 concentration
111.7 m
Open-path CO2/H2O analyzer (LI-7500,
Li-COR), until October 2018
Open-path CO2/H2O analyzer (EC150,
Campbell Scientific Inc.), present
CO2 concentration
111.7 m
Closed-path CO2/H2O analyzer (LI-850,
Li-Cor)
Canopy temperature
108 m
Radiation thermometer (IT-405N, Horita)
CH4 concentration
111.7 m
Open-path CH4 analyzer (LI-7700, Li-Cor)
CO concentration
111.7 m
Closed-path CO analyzer (Los Gatos
Research)
NO2 concentration
111.7 m Closed-path NO2 analyzer (NO2 Monitor,
Aerodyne Research Inc.)