Estimation of the mixing layer height over a high altitude site in Central Himalayan region by using Doppler lidar

• Estimation of mixing layer height over Central Himalayan region for the first time.
• Diurnal variation of mixing layer height over a high altitude site.
• Mixing layer height estimation by using three different instruments and different methods.

A Doppler lidar was installed at Manora Peak, Nainital (29.4°N; 79.2°E; 1958 amsl) to estimate mixing layer height for the first time by using vertical velocity variance as basic measurement parameter for the period September–November 2011. Mixing layer height is found to be located ~0.57±0.1 and 0.45±0.05 km AGL during day and nighttime, respectively. The estimation of mixing layer height shows good correlation (R2>0.8) between different instruments and with different methods. Our results show that wavelet co-variance transform is a robust method for mixing layer height estimation.