IFS: IARI Flux Site

  
General site detail  (Updated 14 May 2014)
 Site name
 IARI Flux Site
 AsiaFlux site code
 IFS
 Location Delhi, India
 Position 28°38'37.7"N , 77°09'09.8"E
 Elevation 207 MSL
 Slope 0
 Terrain type
 Flat
 Area 3ha
 Fetch 150-200m
 Climate Dry Climate (Semi arid - low latitude - monsoon (BSh))
 Mean annual air temperature
 24.1 °C (1971-2000)
 Mean annual precipitation
 779mm (1971-2000)
 Vegetation type
 Cropland
 Domestic species (Overstory)
 Rice (Oryza Sativa), Spring Wheat (Triticum asetivum)
 Dominant species (Understory)
 Nil
 Canopy height
 1 m
 Age Rice (100-130 days); Wheat (100-140 days)
 LAI Maximum 5.0 (Rice), 5.5 (Wheat)
 Soil type
 Silty Clay Loam

Observations
Eddy Covariance method (CO2)
 System Closed-path system (CO2 flux, latent heat flux)
 Wind speed
Three-dimensional sonic anemometer CSAT-3 (Campbell Scientific, USA)
 Air temperature
 Three-dimensional sonic anemometer CSAT-3 (Campbell Scientific, Canada)
 Water vapor
  LI-7200, LI-COR, USA
 CO2  LI-7200, LI-COR, USA
 Measurement height
 2.05 m
 Sampling frequency
 10 Hz
 Averaging time
 30 min
 Data logger
 CR3000 (Campbell,USA)
 Data storage
 Compact flash card
 Original data
 Raw data

Meteorology
 Observation items
  Levels/ Depth
 Instrument 
 Global solar radiation(incoming)
 2.44m above the surface
 Radiometer (CNR-4 Kipp & Zonan The Netherlands)
 Global solar 
radiation (outgoing)
 2.44m above the surface
 Radiometer (CNR-4 Kipp & Zonan The Netherlands)
 Long-wave radiation(outgoing) 
 2.44m above the surface
Radiometer (CNR-4 Kipp & Zonan The Netherlands)
 Long-wave radiation(outgoing) 
2.44m above the surface
Radiometer (CNR-4 Kipp & Zonan The Netherlands)
 Net radiation
 2.44m above the surface
 Net Radiometer (NR-Lite2 Kipp & Zonan The Netherlands)
 PPFD (incoming)
 2.44m above the surface
Silicon Qunatum Sensor (Kipp & Zonan The Netherlands)
 PPFD (outgoing)
 - 
 Direct / diffuse radiation
 - 
 Direct / diffuse PPFD
 - 
 Air temperature
 2.0m above the surface HC-2S3 (Pt100 RTD based, Rotronic Switzerland)
 Humidity 2.0m above the surface (HygroClip S3 based, Rotronic Switzerland)
 Soil temperature
  5, 15, 30, 60 cm depth from surface Platinum resistance thermometer
 Soil heat flux
 5, 15, 30, 60 cm depth from surface Heat flux plate (HFP03 Hukseflux The Netherlands )
 Soil water 
 content 
 5, 15, 30, 60 cm depth from surface TDR sensor (CS616 Campbell Scientific Canada)
 Wind speed
 2.05 m above surface (CSAT-3 Campbell Scientific USA)
 Wind direction
 2.05 m above surface (CSAT-3 Campbell Scientific USA)
 Barometric 
 pressure
 0.5m above surface
 LI 7500
 Precipitation 0.90m Tipping-bucket rain guage (Texas electronics Inc. USA)
 COconcentration
 2.05 m above surface Closed-path CO2/H2O analyzer (LI-7200 LI-COR)
Fluxes of non-CO2 gases
 Gas
 CH4, N2O H2O
 Method CH4 (LI-7700; Chamber), N2O (Chamber), H2O (LI-7200)
 Measurement height
 CH4 (2.05m, 0), N2O (0), H2O (2.05m)
 Data logger
 Campbell CR3000, USA
 Data storage
 Flash memory

Soil respiration
Measurement method Closed Chamber Method
Reference(s) for method (if have)   

 Measuring system
 LI-8100 (Li-Cor Lincoln, NE)
 IRGA
 Yes
 Flow control     Upto 3.0 lpm
 Chamber type
 PVC chamber
 Chamber size
 15.2×15.2×25.4 cm
 Number of chambers
 1
 Measuring intervals
 Non-continuous; Weekly/biweekly measurements
 Is the ground covered by snow in winter? (if yes, how about the measurement in winter?)
 No
 Original data (Raw data or statistics)   
 Raw data
 Temperature and air pressure correction (if done, which temperature was used?)   
 

Other
 Photosynthesis Occasionally
 Ecological investigation
 Occasionally
Biomass, LAI, Plant Height, Economic Yield, Some physiological parameter
 
Observation Period and Data Availability
 Measurement Period
 July 2013 till date
 Measurement Frequency
 Continuous
 Data Availability
 N/A
Contact
  (Flux Measurement) Arti Bhatia (artibhatia.iari@gmail.com)
 Centre for Environment Science and Climate Resilient Agriculture
 Indian Agricultural Research Institute, New Delhi-110012, India
 Tel: +91-11-25847705 Fax: +91-11-25841866
 http://nicra.iari.res.in
 (Chamber measurement) Niveta Jain (nivetajain@gmail.com)
 Centre for Environment Science and Climate Resilient Agriculture
 Indian Agricultural Research Institute, New Delhi-110012, India
 Tel: +91-11-25847705 Fax: +91-11-25841866
 (Soil Fertility) Himanshu Pathak (hpathak.iari@gmail.com)
 Centre for Environment Science and Climate Resilient Agriculture
 Indian Agricultural Research Institute, New Delhi-110012, India
Tel: +91-11-25847705 Fax: +91-11-25841866
 (Micrometeorology) Vinay Sehgal (sehgal@iari.res.in; vksehgal@gmail.com)
 Division of Agricultural Physics, Indian Agricultural Research Institute,  New Delhi-110012, India
 Tel: +91-11-25841178 Fax: +91-11-25842321
  Amit Kumar (amit_bio80@yahoo.com)
Infrastructure
 Eddy Covariance System, Solar Power (yes) Electrical power (AC),   Facilities for communication(yes),Accommodation (yes), Security (yes)
Research Fund
 National Initiative on Climate Resilient Agriculture (NICRA) Project
Calibration information
  Open-path analyzer LI 7700 were calibrated approximately every six
 months with zero gas and standard CH4 gases
 Closed-path analyzer LI 7200 were calibrated approximately every six
 months with zero gas and standard CO2 gases