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LABVIEW graphical user interface for precision multichannel alignment of Raman lidar at Jet Propulsion Laboratory, Table Mountain Facility

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5 Author(s)
Aspey, R.A. ; Jet Propulsion Laboratory, Table Mountain Facility, California Institute of Technology, P. O. Box 367, Wrightwood, California 92397, USA ; McDermid, I.S. ; Leblanc, T. ; Howe, J.W.
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The Jet Propulsion Laboratory operates lidar systems at Table Mountain Facility (TMF), California (34.4°N, 117.7°W) and Mauna Loa Observatory, Hawaii (19.5°N, 155.6°W) under the framework of the Network for the Detection of Atmospheric Composition Change. To complement these systems a new Raman lidar has been developed at TMF with particular attention given to optimizing water vapor profile measurements up to the tropopause and lower stratosphere. The lidar has been designed for accuracies of 5% up to 12 km in the free troposphere and a detection capability of ≪5 ppmv. One important feature of the lidar is a precision alignment system using range resolved data from eight Licel transient recorders, allowing fully configurable alignment via a LABVIEW/C++ graphical user interface (GUI). This allows the lidar to be aligned on any channel while simultaneously displaying signals from other channels at configurable altitude/bin combinations. The general lidar instrumental setup and the details of the alignment control system, data acquisition, and GUI alignment software are described. Preliminary validation results using radiosonde and lidar intercomparisons are briefly presented.

Published in:

Review of Scientific Instruments  (Volume:79 ,  Issue: 9 )