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IITM (Branch), New Delhi

Major scientific objectives
  • To characterize space-time variations in aerosols over northern India, originating from a complex mixture of anthropogenic pollutants and mineral dust, using ground-based in-situ and remote sensing techniques along with the modeling tools.
  • To study aerosol and cloud microphysics in the focus of Aerosol-Cloud-Climate interactions.
  • To estimate atmospheric aerosol forcing during different sky conditions in the perspective to understand their implications for the environment on regional and global scales.
  • To estimate the carrying capacity of the region from air quality vis-à-vis the emissions.

  

   

 

 

 

     Facilities available:

 

Existing Instruments
  • OC/EC analyzer for organic and elemental carbon measurements
  • Pyrenomter for direct short-wave solar flux measurement
  • Ceilometer for cloud microphysics characterization along with the measurements of cloud top and bottom height (cloud thickness)
  • Optical Particle Counter (OPC) for aerosol number and mass size distributions
  • High Volume Sampler (HVS) for total suspended particulate matters (TSPM)
  • PM10 aerosol sampler for the mass of particulate matters of size <10 µm
  • PM2.5 aerosol sampler for the mass of particulate matters of size <2.5 µm                  
  • Surface meteorology using Automatic Weather Station (AWS).
  • Automatic rain collector
 Up-coming Instruments
  • Sun/sky radiometer for various columnar aerosol optical and radiative properties
  • Mini-LIDAR system for vertical profile of aerosols
Model studies:
  • Optical Properties of Aerosol and Cloud (OPAC) model, developed by Hess et al., [1998] is using for the estimation of crucial aerosol optical parameters under different environmental conditions, which are the key responsible for forcing estimation.
  • Santa Barbara DISORT Atmospheric Radiative Transfer (SBDART) model, developed by Ricchiazzi et al., [1998] is using for the estimation of atmospheric forcing in different sky conditions.

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    Staff working:

Scientific
Administrative
  Niraj Kumar Jha (UDC)
Technical
  Birandra Singh (Lab Assistant)

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IITM Branch, New Delhi