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Abstract
Operating a lidar on Mars would fulfill the need of accessing wind and aerosol profiles in the atmospheric boundary layer. This is the purpose of the MARs Boundary Layer Lidar (MARBLL) instrument. We report recent developments of this compact direct-detection wind lidar designed to operate from the surface of Mars. A new laser source has been developed and an azimuthal scanning capability has been added. Preliminary results of a field campaign are presented.
Highlights
The LATMOS laboratory has been developing since 2008 a compact and robust direct-detection wind lidar based on a Mach-Zehnder interferometer concept and designed to operate from the surface of Mars
The wind measurement, as for all Doppler wind lidars (DWLs), is based on measuring the Doppler shift induced by the radial velocity of aerosols backscattering laser photons to the telescope
The DWLs use methods based on quasi-monomode laser emission and require precise frequency locking between the emitter and the analyzer
Summary
The LATMOS laboratory has been developing since 2008 a compact and robust direct-detection wind lidar based on a Mach-Zehnder interferometer concept and designed to operate from the surface of Mars. MARBLL uses a mature state-of-the-art wind lidar technology, including a Nd:Yag laser emitting at 1064 nm. The DWLs use methods based on quasi-monomode laser emission and require precise frequency locking between the emitter and the analyzer. Such methods have not yet been demonstrated during a space mission. The original MARBLL design included a laser inherited from the ChemCam instrument [1] on the Mars Science Laboratory Curiosity rover. Bruneau et al (2013) [2] describe the instrument, the optical design and the results of the first field campaign at the OHP site (Observatoire de Haute-Provence, France)
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