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

Area of Science:

• Atmospheric Science
• Remote Sensing
• Lidar Technology

Background:

• The Jet Propulsion Laboratory (JPL) operates lidar systems for atmospheric monitoring.
• Existing systems are located at Table Mountain Facility (TMF) and Mauna Loa Observatory.
• These facilities are part of the Network for the Detection of Atmospheric Composition Change (NDACC).

Purpose of the Study:

• To develop a new Raman lidar system at TMF.
• To optimize water vapor profile measurements in the troposphere and lower stratosphere.
• To achieve high accuracy and detection capabilities for atmospheric water vapor.

Main Methods:

• Development of a new Raman lidar instrument at TMF.
• Implementation of a precision alignment system using Licel transient recorders.
• Utilizing a LABVIEW/C++ graphical user interface (GUI) for configurable lidar alignment.
• Data acquisition and analysis of lidar signals.

Main Results:

• The new lidar system is designed for 5% accuracy up to 12 km in the free troposphere.
• It offers a detection capability of less than 5 parts per million by volume (ppmv) for water vapor.
• A novel precision alignment system allows for flexible and simultaneous channel monitoring.
• Preliminary validation through radiosonde and lidar intercomparisons has been conducted.

Conclusions:

• The new Raman lidar system enhances water vapor profiling capabilities at TMF.
• The precision alignment system contributes to improved data accuracy and reliability.
• This development supports the Network for the Detection of Atmospheric Composition Change's goals.
• Further validation will confirm the system's performance in atmospheric research.