We report airborne measurements of the column abundance of atmospheric methane made over an altitude range of 3-11 km using a direct detection IPDA lidar with a pulsed laser emitting at 1651 nm. The laser transmitter was a tunable, seeded optical parametric amplifier (OPA) pumped by a Nd:YAG laser and the receiver used a photomultiplier detector and photon counting electronics. The results follow the expected changes with aircraft altitude and the measured line shapes and optical depths show good agreement with theoretical calculations.
Airborne Measurements of Atmospheric Methane Column Abundance Made Using a Pulsed IPDA Lidar
2012-01-01
Preprint
No indication
English
Merlin: an integrated path differential absorption (IPDA) lidar for global methane remote sensing
SPIE | 2017
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