Open path Eddy Covariance (sensible heat, latent heat and CO2 fluxes )
Wind speed
Three-dimensional sonic anemometer-thermometer (CSAT3A, Campbell, USA)
Air temperature
Three-dimensional sonic anemometer-thermometer (CSAT3A, Campbell, USA)
Water vapor
Open path Gas Analyzer (EC-150, Campbell)
CO2
Open path Gas Analyzer (EC-150, Campbell)
Measurement height
25 m
Sampling frequency
10 Hz
Averaging time
60 min
Data logger
CR1000 (Campbell, USA)
Data storage
CF CARD
Original data
Raw data / Available
Meteorology
Observation items
Levels/ Depth
Instrument
Global solar radiation (incoming)
23 m
solar radiation sensor (Campbell NR01)
Global solar radiation (outgoing)
23 m
solar radiation sensor (Campbell NR01)
Long-wave radiation (incoming)
23 m
Infrared radiation sensor (Campbell NR01)
Long-wave radiation (outgoing)
23 m
Infrared radiation sensor (Campbell NR01)
Net radiation
23 m
Radiometer (Campbell Scientific Inc, REBS Q*7.1)
PPFD (incoming)
-
PPFD (outgoing)
-
Direct / diffuse radiation
-
Direct / diffuse PPFD
-
Air temperature
0, 5, 10,15, 20 m
Platinum resistant thermometer and capacitive hygrometer (HMP45C, Vaisala)
Humidity
0, 5, 10,15, 20 m
Platinum resistant thermometer and capacitive hygrometer (HMP45C, Vaisala)
Soil temperature
0, 0.1, 0.3, 0.5, 0.7, 0.9, 1.5 m (under ground)
Thermal couple (copper constant) thermometer
Soil heat flux
0.05 m
Heat flux plate
Soil water content
0.1, 0.3, 0.5, 0.7, 0.9 m (three points)
Capacitance Probe (EnviroSMARTTM, v1.2)
Wind speed
20 m
Wind Monitor (R.M. Young 05103 )
Wind direction
20 m
Wind Monitor (R.M. Young 05103 )
Barometric pressure
23 m
Barometric Pressure Sensor (Campbell, 092)
Precipitation
20 m, Ground (six points)
Rain Gauge (Campbell Scientific Inc, TE525MM)
CO2 concentration
0, 5, 10, 15, 20 m
Close path (LI-COR, LI-820)
Other
Lysimeter
Decagon Devices Inc, Gee Passive Capillary (-0.5 m)
Through fall
Rain Gauge (six points )
Sapflow
Thermal dissipation (eight)
Soil respiration
Home made chamber
Observation Period and data Availability
Measurement Period
From August 2006 to present
Measurement Frequency
Continuous
Data Availability
2008 - 2016 in AsiaFlux Database
Contact
Ming-Hsu Li (mli [at] cc.ncu.edu.tw) Graduate Institute of Hydrological and Oceanic Sciences, National Central University, Taiwan No.300, Jhongda Rd., Jhongli City, Taoyuan, 32001, Taiwan (R.O.C.) Tel: +886-3-4227151 ext.65691 Fax: +886-3-4222894 URL: http://hydro.ihs.ncu.edu.tw/index.html
Yi-Ying Chen (yiyingchen [at] gate.sinica.edu.tw) Research Center for Environmental Changes, Academia Sinica, Taiwan No.128, Section 2, Academia Road, Nankang, Taipei, Taiwan Tel: +886-2-2787-1900 Fax: +886-2-2787-1924
Infrastructure
Tower, Electrical power (DC solar energy), Facilities for communication (GPRS modem ), Accommodation (up to 30 persons )
Research Fund
National Science Council (NSC96-2116-M-008-004; NSC99-2116-M- 008-021; NSC100-2116-M-008-003; MOST104-2116-M-008-018)
Publication
Chen, Y.Y.*, Li, M.H., 2016. Quantifying Rainfall Interception Loss of a Subtropical Broadleaved Forest in Central Taiwan, Water, 8(1)148, doi:10.3390/w8010014.
Chen, Y.Y., Li, M.H.*, 2012. Determining Adequate Averaging Periods and Reference Coordinates for Eddy Covariance Measurements of Surface Heat and Water Vapor Fluxes over Mountainous Terrain, Terrstrial, Atmospheric and Oceanic Sciences, Vol.24 No.1, i, doi: 10.3319/TAO.2012.05.02.01(Hy). link
Chen, Y.Y., Chu, C.R., Li, M.H.*, 2012. A Semiparametric Multivariate Gapfilling Model for Eddy Covariance Fluxes: Estimating Evapotranspiration of a Subtropical Seasonal Evergreen Broad-leaved Forest as An Example, Journal of Hydrology, Vol.468-469, pp.101-110, doi:10.1016/j.jhydrol.2012.08.026. link
