Lidar observations of Na density, Ca ion density, temperature, and wind in the mesopause region

Chikao Nagasawa; Makoto Abo; Yasukuni Shibata

doi:10.1117/12.417082

13 February 2001 Lidar observations of Na density, Ca ion density, temperature, and wind in the mesopause region

Chikao Nagasawa, Makoto Abo, Yasukuni Shibata

Proceedings Volume 4153, Lidar Remote Sensing for Industry and Environment Monitoring; (2001) https://doi.org/10.1117/12.417082
Event: Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 2000, Sendai, Japan

Abstract

We have developed the resonance scattering lidar system for measurements of mesospheric metallic species such as Na, K, Fe atoms and Ca ions and mesospheric temperature and wind. The flashlamp pumped Ti:sapphire laser injected by the seeder that consists of an external cavity laser diode is applied for measurements of the K and Fe atoms and the Ca ions. The sophisticated lidar system which consists of a pulsed dye oscillator and an amplifier system injection-seeded by a stabilized cw ring dye laser is also applied for Na atoms, temperature and wind measurements. Its injection-seeder consists of the single mode ring dye laser locked to the Na fluorescence line using the wavemeter and the Na vapor cell. The most characteristic of this laser system is to generate the comparatively high pulse energy ( more than 100mJ/pulse ) keeping up the narrow bandwidth ( about 0.1pm ). In this paper, the details of the laser design and the results observed by these lidar system are shown.

Citation Download Citation

Chikao Nagasawa, Makoto Abo, and Yasukuni Shibata "Lidar observations of Na density, Ca ion density, temperature, and wind in the mesopause region", Proc. SPIE 4153, Lidar Remote Sensing for Industry and Environment Monitoring, (13 February 2001); https://doi.org/10.1117/12.417082

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KEYWORDS

Sodium

LIDAR

Calcium

Dye lasers

Ions

Chemical species

Temperature metrology

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