SAC: Sakai City Office

General site detail (Updated 15 October 2010)
 Site name
 Sakai City Office
 AsiaFlux site code
 Location Sakai, Osaka
 Position 34º34’25’’N, 135º28’80’’E
 Elevation 17 m 
 Slope 0.0024º(east - west) , 0.0030º (north - south)
 Terrain type
 Flat plain field
 Area -
 Fetch Approximately 2.5 km for west, and more than
 5 km for other directions
 Climate Warm temperate
 Mean annual air temperature
 Mean annual precipitation
 1206.9 mm 
 Vegetation type
 Urban Canyon
 Domestic species (Overstory)
 Dominant species (Understory)
 Canopy height
 Age -
 LAI -
 Soil type
 Concrete and Asphalt

Eddy Covariance method (CO2)
 System Open-path system (LI-7500, LI-COR)
 Wind speed
 Sonic anemometer (SAT-550, Kaijo, Japan)
 Air temperature
 Sonic anemometer (SAT-550, Kaijo, Japan)
 Water vapor
 Open-path CO2/H2O analyzer (LI-7500, LI-COR)
 CO2 Open-path CO2/H2O analyzer (LI-7500, LI-COR)
 Measurement height
 111 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR1000 (Campbell, USA), Model 8421 (Hioki, Japan)
 Data storage
 Original data
 Raw data

 Observation items
  Levels/ Depth
 Global solar radiation(incoming)
 111 m  Pyranometer (ML-020VM, Eko, Japan)
 Global solar 
radiation (outgoing)
 Long-wave radiation(outgoing) 
 Long-wave radiation(outgoing) 
 Net radiation
 PPFD (incoming)
 PPFD (outgoing)
 Direct / diffuse radiation
 Direct / diffuse PPFD
 Air temperature
 108 m Ventilated temperature and humidity  sensor  (HMP-45C, Campbell, USA)
 Humidity 108 m Ventilated temperature and humidity  sensor  (HMP-45C, Campbell, USA)
 Soil temperature
 Soil heat flux
 Soil water 
 Wind speed
 112 m Sonic anemometer (SAT-550, Kaijo, Japan)
 Wind direction
 112 m Sonic anemometer (SAT-550, Kaijo, Japan)
 Precipitation - 
 111 m
 111 m
 27.3, 16.7,  12.7, 7.8 m
  Li 7500, Li-Cor Inc., Lincoln, NE, USA
  IRGA (LI-840, LI-COR, USA)
  IRGA (GMT343, Vaisala, Netherland)

 H2O  concentration
 111 m Li 7500, Li-Cor Inc., Lincoln, NE, USA
 Surface  temperature 108 m Radiative thermometer (IT-450, Horiba, Japan)
 Soil respiration
 Photosynthesis -
 Ecological investigation
Observation Period and data Availability
 Measurement Period
 from November 2008 to present
 Measurement Frequency
 Data Availability
 2009 in AsiaFlux Database
 Masahito Ueyama (miyabi-flux [at]
 Osaka Prefectural University1-1 Gakuen-cho Naka-ku, 
 Sakai, Osaka, Japan

 Electric Power:(100V AC 60Hz)