Apparatus and associated methods relate to determining metrics of water particles in clouds by directing light pulses at a cloud and measuring a peak, a post-peak value and a high-frequency fluctuation of light signals reflected from the cloud. The light pulses include: a first pulse having circularly polarized light of a first wavelength; and a second pulse of a second wavelength. The reflected light signals include: a first reflected light signal having left-hand circular polarization of the first wavelength; a second reflected light signal having right-hand circular polarization of the first wavelength; and a third reflected light signal of the second wavelength. An extinction coefficient and a backscatter coefficient are determined based on the measured peak and post-peak slopes of the first and second reflected light signals. The measured high-frequency fluctuations of the three reflected light signals can be used to calculate cloud particle sizes.
OPTICALLY DETECTING CLOUD METRICS USING SAMPLED ANALOG MEASUREMENTS OF LIGHT REFLECTION
OPTISCHE DETEKTION VON WOLKENMETRIKEN UNTER VERWENDUNG VON ANALOGEN MESSUNGEN DER LICHTREFLEXION
DÉTECTION OPTIQUE DE MESURES DE NUAGES À L'AIDE DE MESURES ANALOGIQUES ÉCHANTILLONNÉES DE RÉFLEXION DE LUMIÈRE
2023-11-29
Patent
Electronic Resource
English
IPC: | G01S RADIO DIRECTION-FINDING , Funkpeilung / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES |
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