26 - 30 April 2026
National Harbor, Maryland, US
Conference 14040 > Paper 14040-4
Paper 14040-4

Dual-Doppler lidar measurements during multimonth field campaign

29 April 2026 • 9:30 AM - 9:50 AM EDT | Chesapeake 5

Abstract

A coordinated wind lidar system was utilized during a multi-month campaign to characterize wind conditions in the Planetary Boundary Layer. Understanding wind conditions in this dynamic layer of the atmosphere is critical to ensure safe and reliable aircraft operations to include Uncrewed Aircraft Systems (UAS). The dual-Doppler lidar technique was first demonstrated by NASA for Advanced Air Mobility (AAM) applications. Using this technique, continuous resolved wind vectors at low altitudes were successfully measured. Unexpectedly, a hurricane formed off the coast of California and its remnants made landfall and passed through the test site. The coordinated dual-Doppler lidars ran continuously through an extreme weather event and successfully measured wind dynamics caused by the storm. This work will focus on the deployment of a multi-lidar setup and analyzing the wind dynamics caused by the storm.

Presenter

NASA Langley Research Ctr. (United States)
Narasimha Prasad received his PhD in nonlinear optics from Klipsch Department of Electrical and Computer Engineering, New Mexico State University, Las Cruces, New Mexico in May 1994. He joined NASA Langley Research Center in 2004 as an aerospace technologist and currently works in the Remote Sensing Branch. Previously, he was a senior research scientist at Coherent Technologies, Inc, Louisville, Colorado (1997–2004). He has over 30 years of R&D experience.
Application tracks: Sustainability
Author
Adam Medina
NASA Langley Research Ctr. (United States)
Author
NASA Langley Research Ctr. (United States)
Author
NASA Langley Research Ctr. (United States)
Presenter/Author
NASA Langley Research Ctr. (United States)
Author
Kyle Renshaw
University of Central Florida, The College of Optics and Photonics, Knight Vision Lab (United States)
Author
Apex Photonics (United States)