Instrument

The NARLa is dedicated to near-range detection with a full overlap around 120m above the ground for a configuration with the ADR lidar, and thus it lowers the overlap-affected height range of the overall system by about 480 m and allows to improve the detection within the boundary layer. It and comprises 4 channels (2α + 2β) at 355 and 532 nm. The channels for detection of polarization were not implemented as this unit is normally used with the ADR lidar that collects the polarization signals at both 532 and 355nm channels, and thus provides particle linear depolarization profiles almost down to the ground. The photon-counting data acquisition system for the NARLa and the ADR lidar was adopted after the MPI-Hamburg design to provide a small and relatively low-priced data acquisition for scientific lidar measurements characterized by an excellent response to the high dynamic range of lidar data.

Instrument PIs: Łucja Janicka UW / Iwona Stachlewska UW