[YMS]
Yamashiro forest meteorology research site

Eddy Correlation Method

System	Open- (CO2 flux, latent heat flux) and closed-path system (CO2 flux)
Wind speed	Three-dimensional sonic anemometer-thermometer (DA600, KAIJO, Japan)
Air temperature	Three-dimensional sonic anemometer-thermometer (DA600, KAIJO, Japan ),
Water Vapor	Band pass covariance(HMP-45,Visala) , Open-path(Li-7500 LI-COR, USA)
CO2	closed-path (LI-6262, LI-COR, USA)
Measurement height	36.1m
Sampling frequency	10Hz
Averaging time	30min
Data logger	DRM3a, TEAC, Japan
Data storage	MO
Original data (Raw data or statistics)	Raw data

Meteorology

Observation items	Levels / Depth	Instrument
Global solar radiation (incoming)	26.4m	Pyranometer (CM6F, Kipp & Zonen, Netherland)
Global solar radiation (outgoing)	26.4m	Pyranometer (CM6B, Kipp & Zonen, Netherland)
Long-wave radiation (incoming)	26.4m	Pyrgeometer(MS-202F,EKO,Japan)
Long-wave radiation (outgoing)	26.4m	Pyrgeometer(MS-202,EKO,Japan)
Net radiation	26.4m	Net radiometer (CN-11, EKO, Japan)
PPFD (incoming)	26.4m	PAR sensor(LI-190SA,LI-COR,USA)
PPFD (outgoing)	-	-
Direct/diffuse radiation	-	-
Direct/diffuse PPFD	-	-
Air temperature	6heights	Temperature Probe(HMP-45A,Visala,Finland)
Humidity	6heights	Humidity Probe(HMP-45A,Visala,Finland)
Soil temperature	About 40points	thermocouple
Soil heat flux	4points	Soil heat flux meter(MF-81,EKO,JAPAN)
Soil water content	12points	TDR(HYDRA, Stivens vitel, USA)
Wind speed	6heights	3-cups anemometer (AG750, Makino, Japan)
Wind direction	26.4m	Vane ( W200P, Vector instruments, UK)
Barometric pressure	N/A	N/A
Precipitation	10m,1.5m	Rain gauge (RT-5,IKEDA instruments, JAPAN))
CO2 concentration	8heights	Closed-path CO2/H2O analyzer (LI-6262, LI-COR, USA)

Other

Soil respiration	Continuous
Photosynthesis	2006 summer - (LI-6400,LI-COR, USA)
Ecological Investigation	Tree heights, stand density, diameter,