NRL reveals new meteorological insight into mid-level clouds

Research meteorologists at the U.S. Naval Research Laboratory (NRL) Marine Meteorology Division (MMD) and Scripps Institution of Oceanography, employing the Navy’s Mid-Course Doppler Radar (MCR) at Cape Canaveral, were able to characterize mid-level, mixed-phase altocumulus clouds. In altocumulus clouds, at medium altitudes ranging from 6 000 feet to 20 000 feet (approximately 1800 – 6000 meters) above mean sea level, water droplets can remain in a supercooled liquid phase at temperatures below zero degrees Celsius, the freezing point of water. The supercooled liquid water found at temperatures generally between 0 and 35 below zero — the temperature where supercooled water droplets begin to spontaneously freeze in a process referred to as homogeneous nucleation &md… »

Source: Solar News

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