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.


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    Title :

    Airborne Measurements of Atmospheric Methane Column Abundance Made Using a Pulsed IPDA Lidar


    Contributors:

    Publication date :

    2012-01-01


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English


    Keywords :