अंतरिक्ष और वायुमंडलीय विज्ञान

The Centre hosts Multi Wavelength Radiometer (MWR), seven channels Aethalometer, Integrating Nephelometer, Electric Low Pressure Impactor (ELPI), Boundary Layer Lidar (BLL) and Net Radiometer for physical and optical characterization of aerosols. Dr. Pisharoty sonde (GPS based) launching station with hydrogen gas filled balloons, SODAR (SOund Detection And Ranging), a 32 m tower with 3D sonic anemometer and other meteorological instruments at 4 levels (at the heights of 6m, 10.5m, 18m, and 30m) and a Mini Boundary Layer Mast (MBLM) are also put in place to study the vertical structure of atmosphere and atmospheric boundary layer dynamics. Online gas analysers for Green House Gases (GHG) like Oxides of Sulphate (SOx), Oxides of Nitrogen (NOx), Carbon monoxide (CO), Ozone (O3), and Methane, non-Methane hydrocarbon are being used with necessary calibration and centralized data logging system to characterize the regional GHG and their impact on climate. Further, a network of 118 Automatic Weather Stations (AWS) spread over entire NER is established and used by NESAC.

A Polarimetric (dual polarisation) S band Doppler Weather Radar (DWR) has been set up at Cherrapunjee, Meghalaya. The DWR is indigenously developed by Radar Development Area, ISTRAC, Bangalore and manufactured by BEL, Bangalore. The DWR has been installed with active support from India Meteorological Department and NESAC.

The space and Atmospheric science group is engaged in research in the areas of Atmospheric science and Space science, with focus on understanding the spatio-temporal distribution of major climate change drivers like aerosols and different greenhouse gases, through collection and analysis of in-situ data from fixed stations and land campaigns, and satellite data and products. Another major area of activity is research to improve short and medium range weather forecasting for NER of India to support disaster management. The first S-band polarimetric radar installed at Cherrapunjee has been operationalised. The group has also started providing experimental operational short range weather forecast for NER of India.

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