AI Article Synopsis
- The Co2DiaWiL is a specialized lidar system designed to simultaneously measure carbon dioxide (CO2) concentration and wind speed.
- It uses a cooled laser setup, with the pumping laser head operating at -80°C and diode arrays at around 20°C, generating 80 mJ output pulses at up to 30 Hz frequency.
- The system achieved 0.7% precision in CO2 measurements over a distance of up to nearly 2 kilometers and successfully measured wind speeds from distances as far as 20 kilometers, including a mountainous area 24 kilometers away.
Article Abstract
A coherent 2 microm differential absorption and wind lidar (Co2DiaWiL) was developed to measure CO(2) concentration and line-of-sight wind speed. We conductively cooled a pumping laser head to -80 degrees C and diode arrays to approximately 20 degrees C. A Q-switched laser outputs an energy of 80 mJ (pulse width 150 ns (FWHM), pulse repetition frequency up to 30 Hz). CO(2) measurements made over a column range (487-1986 m) for 5 min accumulation time pairs achieved 0.7% precision. Line-of-sight wind speeds for ranges up to approximately 20 km and returns from a mountainside located 24 km away from the Co2DiaWiL were obtained.
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| http://dx.doi.org/10.1364/AO.49.001809 | DOI Listing |
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