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U.S. Department of Energy
Office of Scientific and Technical Information

Mobile Atmospheric Pollutant Mapping System (MAPMS). Final report, 1 Aug 84-30 Apr 88

Technical Report ·
OSTI ID:5895435
The Mobile Atmospheric Pollutant Mapping (MAPM) System is a dual CO2 laser, differential absorption lidar (DIAL) system designed and developed for the remote, range-resolved measurement of concentrations of trace molecular species and aerosols optical depths. In the DIAL technique, atmospheric aerosols provide the backscatter for a pulsed laser beam; one laser is tuned to an absorbing wavelength of the molecular species of interest; the other is tuned to a nearby non-absorbing wavelength. The derivative of the logarithm of the ratio of the two signals is used to determine the gas concentration. Heterodyne detection is employed with MAPM to enable long-range measurements. MAPM has been demonstrated with ambient water vapor, ozone, and aerosols, with a free release of ethylene, and with various organic solvent vapors in a sample chamber.
Research Organization:
California Inst. of Tech., Pasadena, CA (United States)
OSTI ID:
5895435
Report Number(s):
AD-A-242998/3/XAB
Country of Publication:
United States
Language:
English