Patent ID: 10466157

Abstract:
Apparatus and associated methods relate to determining a size and/or density of Super-cooled Large Droplets (SLDs) in a cloud atmosphere by simultaneously projecting both a collimated pulsed beam into a narrow-field projection volume and a divergent pulsed beam into a wide-field projection volume of the cloud atmosphere, and then detecting both the collimated and divergent pulsed beams backscattered from within a detection volume of the cloud atmosphere. Projection and detection are configured such that the detection volume intersects both the narrow-field and the wide-field projection volumes defining narrow-field/detection and wide-field/reception detection volumes, respectively. A distance between the narrow-field/detection intersecting volume and the generating and detecting apparatus is greater than a predetermined distance, thereby avoid detection of light backscattered from within the atmosphere located in a disturbance region of the cloud atmosphere within the predetermined distance from the apparatus.