Student Seminar: Paloma Borque

Event

Burnside Hall Room 934, 805 rue Sherbrooke Ouest, Montreal, QC, H3A 0B9, CA

First Observations of Tracking Clouds Using Scanning Cloud Radars

Tracking clouds using scanning cloud radars can help document the temporal evolution of cloud properties well before large-drop formation (weather radar “first echo”). In this seminar, two-dimensional along-wind range–height observations of a population of shallow cumuli (with and without precipitation) from a 35-GHz scanning cloud radar at the Southern Great Plains, Oklahoma will be presented. Observations from scanning precipitation radars provide the larger-scale context of the cloud field and highlight the advantages of the cloud radar to detect numerous small non-precipitating cloud elements. A new Cloud Identification and Tracking Algorithm (CITA) was developed to track cloud elements. Following CITA, the temporal evolution of cloud-element properties (number, size, and maximum reflectivity) and their connection with the environment will be presented. The advantages and disadvantages of cloud tracking will also be discussed.

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