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Autonomous Airborne Sun/Sky-Scanning Spectrometer

Autonomous Airborne Sun/Sky-Scanning Spectrometer. Entrance aperture. Optical fiber. Sun-tracking head. Data products: Aerosol optical depth Columns of H 2 O, O 3 , NO 2 Aerosol extinction Density of H 2 O, O 3 , NO 2. }. When UAV flies vertical profiles. _. __. Ames role :

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Autonomous Airborne Sun/Sky-Scanning Spectrometer

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  1. Autonomous Airborne Sun/Sky-Scanning Spectrometer Entrance aperture Optical fiber Sun-tracking head Data products: • Aerosol optical depth • Columns of H2O, O3, NO2 • Aerosol extinction • Density of H2O, O3, NO2 } When UAV flies vertical profiles _ __ Ames role: World leader in airborne sunphotometry. Technology: Zeiss Monolithic Miniature Spectrometer, CCD 1044×64 pixels, fiber optics, quad detector, custom entrance optics, tracking motors, bearings, seals, flashdisks Measures: Continuous spectrum of solar direct-beam transmission and scattered light at wavelengths, l = 300-1017 nm Technical challenges: Tracking accuracy, autonomous sun finding, straylight supression, dynamic range, spectrometer temperature control window frost & dirt, pressure & weather seals. Technology Readiness Level: Ground-based prototyping • Beat Schmid BAER/SGG, • bschmid@mail.arc.nasa.gov x4-5933 • Team Members: Nicholas Truong, Roy Johnson, • Phil Russell, Jens Redemann, John Livingston • Ground-based prototype NASA DDF: Mar 04-06 • Miniaturization design study NOAA: Mar 05-07 • Funding opportunities: NASA, NOAA, DOE Altair UAV

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