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Synonyms: 
P3B
P-3 Orion
NASA P-3B
NASA P-3
NASA-P3B
P-3
P-3B
P3
P3-B
WFF P3-B
NASA P-3 Orion - WFF
Associated content: 
P-3 Orion - WFF

Lynn McMurdie preparing for an interview with The Weather Channel

Microphysics Probe flight 8 preparation

IMPACTS P3 Takeoff 19JAN23

High Altitude Lidar Observatory

The NASA Langley High Altitude Lidar Observatory (HALO) is used to characterize distributions of greenhouse gasses, and clouds and small particles in the atmosphere, called aerosols. From an airborne platform, the HALO instrument provides nadir-viewing profiles of water vapor, methane columns, and profiles of aerosol and cloud optical properties, which are used to study aerosol impacts on radiation, clouds, air quality, and methane emissions.  When the water vapor, aerosol and cloud products are combined it provides one of the most comprehensive data sets available to study aerosol cloud interactions.  HALO is also configured to provide in the future measurements of the near-surface ocean, including depth-resolved subsurface backscatter and attenuation.
 

Instrument Type: 
Lidar
Measurements: 
water vapor profiles, methane columns and profiles, Aerosol Depolarization Ratio, Aerosol Scattering Ratio, Aerosol Backscattering, Aerosol Extinction
Aircraft: 
DC-8- AFRC, C-130- WFF, P-3 Orion - WFF, B200 - LARC, B-200 (UC-12B) - LARC, DC-8 - AFRC, Gulfstream V - JSC, Gulfstream III - LaRC
Point(s) of Contact: 
Amin R. Nehrir (PI)

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