UTD preliminary data analysis

The UTD team proposes to work on the evaluation of the scanning lidar accuracy for different configurations and atmospheric conditions. This analysis is carried out by comparing the 200S radial velocity with the sonic data acquired by the met-tower and the profiling lidars. The sonic and profiling lidar data are projected over the 200S line-of-sight in order to produce an equivalent radial velocity.

For this analysis an "effective" range gate is evaluated, i.e. the projection of the range gate over the horizontal plane and mean wind direction. This parameter is considered to be the sensitive measurement volume of the lidar. The vertical extent of the lidar range gate is also evaluated, which is a parameter to estimate the effect of wind shear on the radial velocity.

The error analysis will be performed by considering different stability regimes, turbulence intensity, wind shear and veer.

After this error analysis for the radial velocity of single lidars, the retrieval of 3D velocity components from 3 intersecting and synchronous lidars will be carried out. For this analysis a crucial point is the definition of the effective measurement volume determined by the intersection of the 3 range gates.

For the proposed analysis the following experiments will be investigated:

• Dual/Triple Doppler Stares - Sonic + Lidar Supersite 3/21/2015-3/24/2015
• Dual/Triple Doppler Stares - Sonic + Lidar Supersite + Radar Site 3/24/2015-4/1/2015