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24 October 2018 Airborne direct-detection 2-μm triple-pulse IPDA lidar integration for simultaneous and independent atmospheric water vapor and carbon dioxide active remote sensing
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Abstract
Atmospheric water vapor and carbon dioxide are important greenhouse gases that significantly contribute to the global radiation budget on Earth. A 2-micron triple-pulse, Integrated Path Differential Absorption (IPDA) lidar instrument for ground and airborne atmospheric carbon dioxide and water vapor concentration measurements using direct detection was developed at NASA Langley Research Center. This active remote sensing instrument provides an alternate approach with significant advantages for measuring atmospheric concentrations of the gases. A high energy pulsed laser transmitter approach coupled with sensitive receiver detection provides a high-precision measurement capability by having a high signal-to-noise ratio. This paper presents the concept, development, integration and testing of the 2-micron triple-pulse IPDA. The integration includes the various IPDA transmitter, receiver and data acquisition subsystems and components. Ground and airborne testing indicated successful operation of the IPDA lidar.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tamer F. Refaat, Mulugeta Petros, Upendra N. Singh, Charles W. Antill, Teh-Hwa Wong, Ruben G. Remus, Karl Reithmaier, Jane Lee, Stephen C. Bowen, Bryant D. Taylor, Angela M. Welters, Anna Noe, and Syed Ismail "Airborne direct-detection 2-μm triple-pulse IPDA lidar integration for simultaneous and independent atmospheric water vapor and carbon dioxide active remote sensing", Proc. SPIE 10779, Lidar Remote Sensing for Environmental Monitoring XVI, 1077902 (24 October 2018); https://doi.org/10.1117/12.2324785
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