DFR:Dry Dipterocarp Forest Flux Ratchaburi
            
General site detail (Updated 24 August 2011)
 Site name
 Dry Dipterocarp Forest Flux Ratchaburi
 AsiaFlux site code
 DFR
 Location KMUTT Ratchaburi Campus, Rang Bour,  Chombueng, Ratchaburi Province, Thailand
 Position 13º35’ N, 99º30' E
 Elevation 118 m 
 Slope Negligible
 Terrain type
 Flat
 Area 88.9 ha
 Fetch N/A
 Climate Tropical monsoon climate
 Mean annual air temperature
 26.51ºC (2008-2009)
 Mean annual precipitation
 1,125.75 mm (2009-2010)
 Vegetation type
 Dry dipterocarp forest
 Domestic species (Overstory)
 Dipterocarpus intricatu, D. obtusifolius , D.  tuberculatus, Shorea obtuse, and S. siamensis
 Dominant species (Understory)
 N/A
 Canopy height
 5-7 m
 Age  Regenerated forest, mostly young of 5-7 years old  (measurement 2009)
 LAI  N/A
 Soil type
 Losmy sand

Observations
Eddy Covariance method (CO2)
 System Open-path system
 Wind speed
 Three-dimensional sonic anemometer-thermometer  (Campbell CSAT3)
 Air temperature
 Three-dimensional sonic anemometer-thermometer  (Campbell CSAT3)
 Water vapor
 Open-path CO2/H2O analyzer (LI-7500, LI-COR)
 CO2 Open-path CO2/H2O analyzer (LI-7500, LI-COR)
 Measurement height
 8 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR1000, CR23X, and CR10X, Campbell Sci.
 Data storage
 PC and SSD
 Original data
 Raw data

Meteorology
 Observation items
  Levels/ Depth
 Instrument 
 Global solar radiation(incoming)
 11, 8 m  CM11 and CNR1, Kipp and Zonen, Delft, Holland
 Global solar 
radiation (outgoing)
 8 m  CNR1, Kipp and Zonen, Delft, Holland
 Long-wave radiation(outgoing) 
 8 m  CNR1, Kipp and Zonen, Delft, Holland
 Long-wave radiation(outgoing) 
 8 m  CNR1, Kipp and Zonen, Delft, Holland
 Net radiation
 8 m  CNR1, Kipp and Zonen, Delft, Holland
 PPFD (incoming)
 10 m  LI-190,Li-Cor Inc., Lincoln, NE, USA
 PPFD (outgoing)
 - 
 Direct / diffuse radiation
 - 
 Direct / diffuse PPFD
 - 
 Air temperature
 10 m Campbell HMP45C
 Humidity 10 m Campbell HMP45C
 Soil temperature
  - 6 cm 
 Campbell TCAV Averaging soil thermocouple
 Soil heat flux
  - 8 cm  HFP01, Campbell Scientific Inc., Logan, UT, USA
Soil water 
 content 
  - 2.5 cm
 CS616, Campbell Scientific Inc., Logan, UT, USA
 Wind speed
 8 m CSAT-3, Campbell Scientific Inc., Logan, UT, USA
 Wind direction
 8 m CSAT-3, Campbell Scientific Inc., Logan, UT, USA
 Barometric 
 pressure
 - 
 Precipitation 11 m TE525, Texas Electronics, Texas, USA
 COconcentration
 8 m  Li 7500, Li-Cor Inc., Lincoln, NE, USA
 H2O concentration
 8 m  Li 7500, Li-Cor Inc., Lincoln, NE, USA
Other
 Soil respiration
 Continuous automated static close  chamber
 Photosynthesis -
 Ecological investigation
 Tree height, diameter, root growth and  turnover, phenology, LAI and canopy  structure, litter dynamics, sap flow  velocity, water potential in tree and soil,  soil water content, acid deposition (SO2)  all will be started in 2009
 
Observation Period and data Availability
 Measurement Period
 from May 2008 to present
 Measurement Frequency
 Continuous
 Data Availability
 2008-2011 in AsiaFlux Database
                         (Soil respiration)
Contact
 Amnat Chidthaisong (amnat_c [at] jgsee.kmutt.ac.th)
 The Joint Graduate School of Energy and Environment (JGSEE), and  Center of Excellence on Energy Technology and Environment, King  Mongkut’s University of Technology Thonburi (KMUTT), Earth System  Science Office (ESS-KMUTT Project), 126 Pracha-Utit Rd., Tungkru,  Bangkok 10140, Thailand.
 Tel. (66) 2470-8309-10 # 4151, 4119 Fax: (66) 2872-9805
[Flux and micrometeorology] 
 Montri Sanwangsri (montri.san [at] kmutt.ac.th)
 The Joint Graduate School of Energy and Environment, King Mongkut’s  University of Technology Thonburi (JGSEE-KMUTT), Earth System  Science Office (ESS-KMUTT Project), 126 Pracha-Utit Rd., Tungkru,  Bangkok 10140, Thailand.
 Tel. (66) 2470-8309-10 # 4151, 4119 , Fax: (66) 2872-9805
 [Soil respiration] 
 Phongthep Hanpattanakit (i_am_topten [at] yahoo.com)
 Faculty of Environmental Culture and Ecotourism, Srinakharinwirot  University, 114 Sukhumvit 23, Bangkok 10110, Thailand 
 Tel. (66) 2649-5000 , Fax: (66) 2260-3275
 [Methane emission] 
 Srintornthep Towprayoon (sirin [at] jgsee.kmutt.ac.th)
 The Joint Graduate School of Energy and Environment, King Mongkut’s  University of Technology Thonburi (JGSEE-KMUTT), Earth System  Science Office (ESS-KMUTT Project), 126 Pracha-Utit Rd., Tungkru,  Bangkok 10140, Thailand. 
 Tel. (66) 2470-8309-10 # 4151, 4119 , Fax: (66) 2872-9805
 [Flux and micrometeorology] 
 Andrew McMillan (a.mcmillan [at] niwa.co.nz)
 National Institute of Water & Atmospheric Research Ltd 301 Evans Bay  Parade, Greta Point, Wellington 6021, New Zealand
Research Fund
 JGSEE-KMUTT
 ESS-KMUTT
 The Thailand Research Fund (TRF) (2008-2010)