2009 Annual Report - NASA Airborne Science Program

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measurements. The flight patterns were at altitudes from 3-8 km centered above the ARM site. The increased CO2 absorptions at higher altitudes were evident in all flights. The flights were also coordinated with investigators at LBNL, who flew an in-situ CO2 sensor on a Cessna aircraft inside the CO2 sounder’s flight pattern. These yielded 2 profiles of CO2 from 5 km to the surface for comparisons. Data analyses showed agreement to better than 2% (6 ppm). Goddard’s CO2 Laser Sounder Team successfully completed an extensive set of airborne measurements with its lidar instrument in summer 2009. The lidar measures the optical absorption of atmospheric CO2 in the nadir column from the aircraft to the surface by stepping a pulsed laser transmitter in wavelength across the 1572.33 nm CO2 absorption line. The time resolved laser backscatter and CO2 absorption and line shape are measured by a photon counting receiver. Several instrument improvements were made since the lidar was flown in December 2008. The instrument was installed on the NASA Glenn Research Center’s Lear-25 aircraft in July 2009. Nine science flights were flown over Nebraska, eastern Illinois, the DOE ARM site near Lamont OK, eastern North Carolina and over the Chesapeake Bay and the Eastern Shore of Virginia. Each flight was just over 2 hours long and was flown with altitudes stepped from 3-13 km. The instrument worked well and CO2 line shapes and absorptions vs. altitude were measured on all flights. Data analysis is underway. The Goddard airborne CO2 Sounder team is led by Jim Abshire (PI). The CO2 Sounder activity is a precursor for the NASA ASCENDS mission, and is supported by ASCENDS funding, and the ESTO IIP and the Goddard IRAD programs. Figures 40 and 41: Pulsed airborne version of CO2 Sounder Instrument on the NASA Glenn Lear-25. 42
AESMIR The AESMIR 2009 test flights took place in January 2009. Installed on the P3 flying out of WFF, the instrument operated successfully at 25,000 ft. This experiment was internally funded by Goddard Space Flight Center. The PI was Edward Kim. AESMIR is a new passive microwave instrument. The goal of this project was to complete the first test flights of this instrument on the P-3. This was a new installation and general instrument performance checkout over ocean and land was desired. The flights took place offshore of WFF and up and down the coast. The instrument achieved successful operation at 25kft for 7hrs,. Airspeeds were up to 300KIAS and the instrument experienced temperatures as low as -30C ambient. The tests also included low-level runs at 200ft. General plans include additional demonstration flights leading to deployment for satellite calibration/validation in the future. . Figure 42: Picture of AESMIR installed on the P-3. 43
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Page 9 and 10: FROM THE DIRECTOR Welcome to NASA
Page 11 and 12: PROGRAM ELEMENTS and EXECUTION The
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Page 43 and 44: Instrument Test Flights In FY 2009,
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on the UAS community and that it is
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among research programs with simila
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Media, Education and Outreach NSERC
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ISRSE NASA’s Airborne Science Pro
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for coverage of the Costa Rican por
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Recognition and Awards Spring 2009
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Genesis and Rapid Intensification P
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APPENDIX A In Memoriam Frank Caldei
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APPENDIX B Airborne Program History
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Figure 72: 1981 photo of Ames Aircr
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APPENDIX C Five-Year Plan Task Name
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24. NASA POLARIS 25. NASA SAGE III
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ATM AVIRIS AVOCET AXCTD Airborne To
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GLISTIN GloPac GOLD GPS GRIP GSFC G
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NAS NASA NASDAT NCAR NGC NIR NMEA N
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U UAPO UAS UAV UAVSAR UCSD UND URS
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2009 Annual Report - NASA Airborne Science Program

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