Altocumulus Cloud Cross Section (IMAGE) Naval Research Laboratory Caption Research meteorologists at the US Naval Research Laboratory Marine Meteorology Division and Scripps Institution of Oceanography, employing the Navy's Mid-Course Doppler Radar at Cape Canaveral, were able to characterize mid-level, mixed phase altocumulus clouds in unprecedented detail. The plot depicts the MCR-derived vertical velocity with the solid red and blue contours bounding upward and downward motion, respectively. The white curves depict the cloud layer position and the dashed blue line the peak cloud top radiative cooling. The black arrows depict cloud circulation features. The radiation-induced subsidence is shown by the horizontally oriented ellipses near cloud-top. Credit US Naval Research Laboratory Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.