Environmental & Climate Sciences Department Seminar

"Resolving Cloud at Decimeter Scales by a T2 Lidar"

Presented by Fan Yang, ECSD/BNL

Thursday, February 22, 2024, 11:00 am — Large Conference Room, Bldg. 490

We develop a time-gated time-correlated single-photon counting lidar to observe cloud base structures up to 10 cm range resolution, two orders of magnitude higher than most atmospheric lidars. Results show that the air-cloud interface is not a perfect boundary but rather is a transition zone where transformation of aerosol particles into cloud droplets occurs. The lidar observation within the transition zone reflects the formation of cloud droplets through activation and condensational growth. Further, the highly resolved vertical profile of backscattered photons above cloud base enables remote estimation of droplet concentration, an elusive but critical property to understand aerosol-cloud interactions.

Hosted by: Mike Jensen

Videoconference Instructions

Meeting ID: 161 899 7300 Passcode: 524786

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