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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 Presentation
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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)
You should propose an
airborne active tracking version
to NASA HQ
1975: STARS (Sutro Tower Aerosol and Radiation Study)
You should come to work
at Ames & propose it to
our DDF
1975: STARS (Sutro Tower Aerosol and Radiation Study)
You should come to work
at Ames & propose it to
our DDF
1975: STARS (Sutro Tower Aerosol and Radiation Study)
Cousins
R2D2 R2D2 of of
The JediThe Jedi
R2D2 R2D2 of of
NASANASA
AATS-6 AATS-6 “R2D2” “R2D2”
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)
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
AATS-6AATS-6
AATS-14AATS-14
19961996
AATS-6AATS-6
AATS-14AATS-14
1997: ACE-21997: ACE-2
2001: ACE-Asia2001: ACE-Asia
AATS-6AATS-6
AATS-14AATS-14
AATS-14AATS-14 10 journal 10 journal papers!papers!
AATSAATS-14-14
AATSAATS-14-14
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
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
19
Ground Prototypes (4STAR-G)
4STAR Fabrication, 2010
4STAR Fabrication, 2010
R2D2 R2D2 of of
The JediThe Jedi
Darth Darth Vader?Vader?R2D2 R2D2
of of NASANASA
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
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
>100 peer-reviewed pubs
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!
