happy 25th anniversary, aats (ames airborne tracking sunphotometers)
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Happy 25th Anniversary, AATS (Ames Airborne Tracking Sunphotometers). AATS-6 - First test flights on CV-990, Dec 1984 - First science mission in Brazil, April 1985. You could almost fly that thing. 1975: STARS (Sutro Tower Aerosol and Radiation Study). - PowerPoint PPT PresentationTRANSCRIPT
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Happy 25th Anniversary, AATS
(Ames Airborne Tracking Sunphotometers)
AATS-6- First test flights on CV-990, Dec 1984- First science mission in Brazil, April 1985
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You could almost fly that thing
1975: STARS (Sutro Tower Aerosol and Radiation Study)
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You should propose an
airborne active tracking version
to NASA HQ
1975: STARS (Sutro Tower Aerosol and Radiation Study)
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You should come to work
at Ames & propose it to
our DDF
1975: STARS (Sutro Tower Aerosol and Radiation Study)
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You should come to work
at Ames & propose it to
our DDF
1975: STARS (Sutro Tower Aerosol and Radiation Study)
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Cousins
R2D2 R2D2 of of
The JediThe Jedi
R2D2 R2D2 of of
NASANASA
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AATS-6 AATS-6 “R2D2” “R2D2”
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P. Russell, Earth Science Seminar, NASA Ames, 19 July 2007
AATS-14
AATS-6
NASA Ames NASA Ames Airborne Tracking Sunphotometers Airborne Tracking Sunphotometers
(AATS-6 & AATS-14)(AATS-6 & AATS-14)
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10/8/2004 3:58:54 PM10/8/2004 3:58:54 PM P. Russell, Ames Seminar, 24 January 2002P. Russell, Ames Seminar, 24 January 200211
UrbanPollution
BiomassSmoke
H20H20
O3O3
Desert Dust
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AATS-6AATS-6
AATS-14AATS-14
19961996
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AATS-6AATS-6
AATS-14AATS-14
1997: ACE-21997: ACE-2
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2001: ACE-Asia2001: ACE-Asia
AATS-6AATS-6
AATS-14AATS-14
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AATS-14AATS-14 10 journal 10 journal papers!papers!
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AATSAATS-14-14
AATSAATS-14-14
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4STAR: Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research
AERONET-like capability
Ground-based direct beam + sky scanning yields column-integrated aerosol properties:• Size distributions• Single-scattering albedo • Asymmetry parameter • Sphericity
4STAR:
Improve gasesAnd thus AOD
Airborne spectra yields profiles of aerosol type
AATS-like capability:
Airborne sun-tracking yields range-resolved properties from column-integrated quantities measured while profiling.
AATS-like capability:
Airborne sun-tracking yields range-resolved properties from column-integrated quantities measured while profiling.
Schmid et al., AGU Fall 2009Schmid et al., AGU Fall 2009
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Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research (4STAR)
Fiber Optics Rotating Joint
Azimuth Motor
Elevation Motor
Motor Feedback Devices
Aircraft Skin
Fiber Optics Cable
Slip Ring
Optical Entrance
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19
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Ground Prototypes (4STAR-G)
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4STAR Fabrication, 2010
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4STAR Fabrication, 2010
R2D2 R2D2 of of
The JediThe Jedi
Darth Darth Vader?Vader?R2D2 R2D2
of of NASANASA
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4STAR Fabrication, 2010
R2D2 R2D2 of of
The JediThe Jedi
Darth Darth Vader?Vader?
May the May the 4STAR be 4STAR be with you!with you!
R2D2 R2D2 of of
NASANASA
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Next steps…
Adding temperature-stabilized enclosure for data acquisition rack
Finish stray light in side spectrometer correction
Reduce stray light in skylight measurements
Build airborne version FY10 and FY11.
Modify G-1 escape hatch for integration of 4STAR in FY10
Test-fly 4STAR on G-1 in FY11.
Hardening and retrieval algorithms in FY12
Funding: NASA, DOE ARM, BMI, PNNL
[Airworthiness test flights, Sep 2010]
[Science demo]
Schmid et al., AGU Fall 2009Schmid et al., AGU Fall 2009
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>100 peer-reviewed pubs
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None of this would have happened without: Jim Pollack’s vision & persistence Many, many engineers, technicians, scientists, pilots, managers, … who have worked on & with the AATSs over the years
We’re here today to recognize these contributions with cake drinks, & memories!