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Abstract
Over the past several years we have developed a Raman lidar system for measurements of water vapor profiles throughout the troposphere and into the upper troposphere/lower stratosphere (UT/LS). Two validation campaigns have already been held, MOHAVE I and II, and a third is currently being planned. The first campaign revealed biases in the lidar profile at high altitudes and H2O mixing ratios ≤10 ppm. The system was modified to correct these biases as demonstrated in the second campaign. Various methods of calibrating the lidar have been studied and the limitations of using radiosondes for this purpose have been revealed. An improved, hybrid calibration procedure using both radiosondes and a standard lamp has been developed and proved to be effective. This presentation will discuss some of the important lessons learned as we continue to try to improve the performance of this lidar system.
The work to be described in this presentation was carried out at The Jet Propulsion Laboratory, California Institute of Technology, under an agreement with the National Aeronautics and Space Administration. © California Institute of Technology.