Lidar Atmospheric Profile Sensor
Laps is a multi-wavelength Raman Lidar that can take measurements during the day and night. Laps utilizes an Nd:YAG laser. The fundamental wavelength is 1064nm which is doubled to 532nm (second harmonic) and quadrupled to 266nm (fourth harmonic). Both the 532 and 266 signal are then transmitted into the atmosphere.
The Laps System uses Raman Scattering techniques to measure vertical profiles of aerosol extinction, water vapor, temperature, and ozone. Rotational Raman scattering is used to measure temperature, whereas vibrational Raman scattering is used to measure water vapor, ozone and optical extinction.
The Laps System has a vertical resolution of 75m, with the capability of taking measurements from about 100m to 8km. Measurements are taken continuously and then integrated in order to average out any error from photon counting.
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