SBW: Sibu Station

General site detail (Updated 4 Feb 2016)
 Site name
 Sibu Station
 AsiaFlux site code
 SBW
 Location Sibu, Sarawak, Malaysia 
 Position 02º'11’12”N, 111°50’35.7”E
 Elevation 25.30
 Slope -
 Terrain type
 Almost flat
 Area 10,000 ha
 Fetch 433 - 1300 m
 Climate Tropical rainforest climate (moderately hot - very humid - receives substantial rainfall (Af))
 Mean annual air temperature
 34.47 ºC
 Mean annual precipitation
 1912.8 mm
 Vegetation type
 Oil palm
 Domestic species (Overstory)
 Oil palm (Elaeis guineensis)
 Dominant species (Understory)
 Fern (Nephrolepis biserrata)
 Canopy height
 8 m in 2011
 Age 3-7 years in 2011
 LAI -
 Soil type
  Peat soil

Observations
Eddy Covariance method (CO2)
 System Open-path system (CO2latent heat flux) 
 Wind speed 
 3-dimensional sonic anemometer (CSAT3, Campbell, USA)
 Air temperature
  3-dimensional sonic anemometer (CSAT3, Campbell, USA)
 Water vapor
 Open-path  CO2/ H2O analyzer (LI-7500, LICOR)
 CO2 Open-path  CO2/ H2O analyzer (LI-7500, LICOR)
 Measurement height
 21 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR3000 (Campbell, USA)
 Data storage
 CF
 Original data
 Raw

Meteorology
 Observation items
  Levels/ Depth
 Instrument 
 Global solar radiation(incoming)
 41 m Net Radiometer (CNR4, Kipp & Zonen, The Netherlands)
 Global solar 
radiation (outgoing)
 41 m Net Radiometer (CNR4, Kipp & Zonen, The Netherlands)
 Long-wave radiation(incoming) 
 41 m Net Radiometer (CNR4, Kipp & Zonen, The Netherlands)
  Long-wave radiation(outgoing) 41 m Net Radiometer (CNR4, Kipp & Zonen, The Netherlands)
 Net radiation
 41 m Net Radiometer (CNR4, Kipp & Zonen, The Netherlands)
 PPFD (incoming)
 41 m Quantum sensor (LI-190SB or LI190SL, LI-COR, USA)
 PPFD (outgoing)
 41 m Quantum sensor (LI-190SB or LI190SL, LI-COR, USA)
 Direct / diffuse radiation
 - 
 Direct / diffuse PPFD
 - 
 Air temperature
 5, 21 m Temperature & Relative Humidity (RH) probe  (CS215, Campbell, USA)
 Humidity 5, 21 m Temperature & Relative Humidity (RH) probe  (CS215, Campbell, USA)
 Soil temperature
 0.05,0.1 m Platinum resistance thermometer (Pt100, Japan)
 Soil heat flux
 - 
 Soil water 
 content 
 0.15, 0.3 cm TDR sensor (CS616, Campbell, USA)
 Wind speed
 41 m 
 01003-5 Wind velocity & direction, Campbell, USA
 Wind direction
 41 m 01003-5 Wind velocity & direction, Campbell, USA
 Barometric 
 pressure
 - 
 Precipitation 1 m Tipping-bucket rain gauge (TE525MM, Texas Instrument, USA)
 COconcentration
 21,11,5,3,1,0.5m Closed-path CO2 analyzer (LI820, LI-COR, USA)
Other
 Soil respiration
 Closed chamber method (CO2, CH4, N2O), Measuring system: Manually Measuring intervals; Monthly
 Ecological Investigations  -
 
Observation Period and Data Availability
 Measurement Period
 From January, 2011 to present
 Measurement Frequency
 Continuous
 Data Availability
 N/A
Contact
Lulie Melling (lullie_melling@yahoo.com)
 Tropical Peat Research Laboratory Unit,
 Chief Minister’s Department,
 Lot 6035, Kuching-Kota Samarahan Expressway,
 94300 Kota Samarahan
 Tel:+60-82-662-495  Fax:+60-82-662-497
 Wong Guan Xhuan (jiaxiang31 [at] hotmail.com)
 Edward Baran (edward.b.aeries [at] gmail.com)
 Kevin Kemudang (kevin77_k [at] yahoo.com) 
Calibration Information
 CO2 analyzers were calibrated every months using spans gases. 
Infrastructure
 Tower, Solar energy system

Research Fund
 Malaysian Government, Sarawak State Government