OM1: B11 building in Osaka Metropolitan University
General site detail (Updated 24 May 2023)
Site name B11 building in Osaka Metropolitan University AsiaFlux site code OM1 Location Sakai, Osaka, Japan Position 34°32'49.84"N, 135°30'10.30"E Elevation 27 m above sea level Slope 0 degree Terrain type Flat Area - Fetch 150 m Climate Warm temperature (Cfa) Mean annual air temperature 15.6 ℃ Mean annual precipitation 1206.9 mm Vegetation type Roadside trees (Deciduous broad leaf trees) Dominant Species (Overstory) - Dominant Species (Understory) - Canopy height 13.1 ± 2.9 m Age - LAI - Soil type Concrete and Asphalt
Observations
Eddy Covariance method (CO2 )
System Open-path eddy covariance Wind speed Sonic anemometer (Windmaster, Gill), until April, 2021 Air temperature Sonic anemometer (Windmaster, Gill), until April, 2021 Water vapor Open-path CO2 /H2 O analyzer (LI-7500, Li-Cor), until April,20212 /H2 O analyzer (EC150, Campbell Scientific CO2 Open-path CO2 /H2 O analyzer (LI-7500, Li-Cor), until April,20212 /H2 O analyzer (EC150, Campbell Scientific Measurement height 16.2 m Sampling frequency 10 Hz Averaging time 30 minutes Data logger CR1000X (Campbell Scientific Inc.) Data storage microSD card Original data Raw data
Meteorology
Observation items Levels/Depth Instrument Global solar radiation 0.9 m above roof 4 component net radiometer (MR-40, Eko, Japan) Global solar radiation 0.9 m above roof 4 component net radiometer (MR-40, Eko, Japan) Long-wave radiation 0.9 m above roof 4 component net radiometer (MR-40, Eko, Japan) Long-wave radiation 0.9 m above roof 4 component net radiometer (MR-40, Eko, Japan) Net radiation 0.9 m above roof Net Radiometer (NR LITE2, Kipp&Zonen) PPFD (incoming) - - PPFD (outgoing) - - Direct/diffuse radiation - - Direct/diffuse PPFD - - Air temperature 0.8 m above roof Platinum resistance thermometer and Humidity 0.8 m above roof Platinum resistance thermometer and Soil temperature - - Soil heat flux 0 cm above roof Heat flux plate (TEC-3105, Kyohritsu,Japan) Soil water content 0~30 cm in TDR sensor (CS616,Campbell Scientific Inc.) Wind speed 1) 16.2 m a.g.l 1) Sonic anemometer (Windmaster, Gill), until April, 2021 Wind direction 1) 16.2 m a.g.l 1) Sonic anemometer (Windmaster, Gill), until April, 2021 Barometric pressure 16.2 m a.g.l Barometer (PTB110, Vaisala) Precipitation 0 cm above roof Tipping-bucket raingauge (WBO015, Nakase, Japan) CO2 concentration 16.2 m a.g.l Open-path CO2 /H2 O analyzer (LI-7500, Li-Cor), until April, 20212 /H2 O analyzer (EC150, Campbell Scientific Inc.), present CO2 concentration 22.5 m a.g.l Closed-path CO2 /H2 O analyzer (LI-850, Li-Cor) Surface temperature 18.0 m a.g.l Radiation thermometer (IT-405N, Horiba) Roof temperature 0 cm above roof Thermocouple CH4 concentration 16.2 m a.g.l Open-path CH4 analyzer (LI-7700, Li-Cor) Ultraviolet radiation 0.9 m above roof Quantum sensor (CAP-SU-200-SS,Apogee) CO concentration 16.2 m a.g.l Closed-path CO analyzer (Los Gatos Research)
Fluxes of non-CO2 gases
Gas CH4 Method Eddy covariance method Measurement height 16.2 m Data logger CR1000X (Campbell Scientific Inc.) Data storage microSD Card
Other Phenology Phenological Camera (Garden watch camera)
Observation Period and Data Availability
Measurement Period October 2014 to present Measurement Frequency Continuous Data Availability -
Contact
Calibration Information
Open-path analyzer were calibrated approximately once a year with 2 gases and a dew point generator (LI610, LI-COR)
Infrastructure
Pole tower, Electrical power (AC)
Research Fund
Publication
Ueyama, M., Taguchi, A., Takano, T., 2021. Water vapor emissions from urban landscapes in Sakai, Japan. Journal of Hydrology, 598, 126384.
