New Sodium Resonance Wind-Temperature Lidar at Poker Flat Research Range: Analysis of gravity wave activity measurements
Abstract
In Fall 2017 a new sodium resonance wind-temperature lidar (SRWTL) system was installed at the Lidar Research Laboratory at Poker Flat Research Range, Chatanika, Alaska (65°N, 147° W). The lidar transmitter incorporates a solid state continuous-wave seed laser, Acousto-Optic Modulator, and a Pulsed-Dye Amplifier. The SRWTL employs a three-frequency technique to measure wind, temperature and sodium in the mesosphere-lower thermosphere ( 80-100 km). We conducted observations with the SRWTL during the winter of 2017-2018 including during the Supersoaker rocket investigation. The SRWTL was configured with two beams yielding measurements in the vertical and 20° off-vertical to the north. We operated the established Poker Flat Rayleigh lidar (PFRL) simultaneously with the SRWTL. The PFRL measures density and temperature in the stratosphere and mesosphere ( 35-85 km). In this poster we analyze the gravity wave activity derived from the SRWTL and PFRL measurements in the stratosphere, mesosphere and lower thermosphere. We consider the propagation of primary gravity waves, wave-breaking and the generation of secondary waves.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMSA43A..08L
- Keywords:
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- 3369 Thermospheric dynamics;
- ATMOSPHERIC PROCESSESDE: 3384 Acoustic-gravity waves;
- ATMOSPHERIC PROCESSESDE: 3389 Tides and planetary waves;
- ATMOSPHERIC PROCESSESDE: 2427 Ionosphere/atmosphere interactions;
- IONOSPHERE