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Frequently Asked Questions

The WV DIAL Lidar system transmits microjoule pulses at 10 kHz repetition rates to remain eye-safe and to provide the signal averaging required for good precision.

PSI offers two other Lidar systems - Coherent Lidar and Remote Methane Leak Detector. The Coherent Lidar senses winds as a function of range with application to turbulence mitigation onboard aircraft, while the Remote Methane Leak Detector is an integrated path differential absorption lidar used to monitor for leaks in municipal distribution systems in the natural gas industry.

A Lidar system is an active remote sensing system that collects pulsed laser energy scattered from aerosols or gas molecules to monitor atmospheric properties such as optical extinction, gas and aerosol concentrations, temperature, and winds.

The purpose of using Lidar systems is to monitor atmospheric properties such as optical extinction, gas and aerosol concentrations, temperature, and winds. The WV DIAL Lidar system is intended to monitor the lower atmosphere to provide increased data necessary for improving the precision of near term weather forecasting and long term climate change prediction models.

The WV DIAL Lidar system profiles water vapor concentration in the atmosphere as a function of range. It does this by monitoring the differential absorption between two wavelengths, one chosen to be on an individual water absorption line and the second chosen well away from the line.

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