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How a Laser Can Help Distinguish Water and Ice in Clouds ⚡ экспресс

Original: "Detection of isolated specular reflection for calibration of cloud thermodynamic phase estimation with quantum parametric mode sorting LIDAR"
arXiv:2509.17556 · 2025-09-22 · CC BY 4.0 · ⏱ 1 min · Quantum Physics Atmospheric and Oceanic Physics
A special quantum filter will teach satellite lasers to flawlessly tell water from ice in clouds.
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Satellite lasers get blinded by clouds: the mirror glare prevents knowing whether it's water or ice. Physicists found a loophole—a quantum filter that captures exactly that glare. By combining two lasers, cloud maps become more accurate, and weather forecasts more reliable.

🎯 The mirror reflection from icy clouds can be so strong that it completely 'blinds' satellite lasers, rendering them useless for analyzing cloud composition.

Scientists
Christian DopplerD. B. McLaughlinDidier QuelozMichel MayorR. A. RossiterJames Clerk Maxwell
Tags
Water photometry spectroscopy
Laws
Doppler effectMaxwell's equationsPlanck's lawPlanck–Einstein relationWien's displacement lawStefan–Boltzmann law
Original: arXiv:2509.17556 · CC BY 4.0 · bridge42worlds