Under the ABLN &C project a Micro Pulse LiDAR and two ultrasonic anemometers have been installed over the Manora Peak, Nainital. The site is a part of the NOBLE (Network of Observatories for Boundary Layer Experiment) network, representing a complex topographical location. Measurement of vertical distribution of aerosols and clouds over Manora peak are being made since October 2011, with a LAMP (LiDAR for Atmospheric Measurement and Probing) system. The seasonal variability in vertical distribution of aerosol has been studied over this high altitude regional representative site. Elevated aerosol layers and clouds have also been studied to understand their radiative effects on the atmosphere.
In order to study the atmospheric boundary layer processes over the complex topography of the central Himalayas, a meteorological tower has been setup over Manora peak, Nainital, with Ultrasonic anemometer at two levels (12 and 27m AGL). Continuous measurements are being made since 30 January 2013. The instrument measures the wind components and temperature at sampling rate of 25Hz. Through these measurements seasonal and diurnal variability of basic meteorological parameters, momentum flux and turbulence kinetic energy have been studied. Vertical winds play an important role in mountain meteorology, as they can bring pollutants, moisture, etc. from the nearby regions, and may also bring clean air from free troposphere to the site. Seasonal and diurnal variability of vertical wind have been studied for the first time at the site. The study will be crucial in quantifying the variability in anabatic and katabatic winds over Manora peak.