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There are a total of 749 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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Giant Vehicles
Author(s): Said, Magdi A; Schur, Willi W.; Gupta, Amit; Mock, Gary N.; Seyam, Abdelfattah M.; Theyson, Thomas
Abstract: Science and technology development from balloon-borne telescopes and experiments is a rich return on a relatively modest involvement of NASA resources. For the past three decades, the development of increasingly competitive ...
NASA Center: Goddard Space Flight Center, Wallops Flight Facility
Publication Year: 2004
Added to NTRS: 2008-06-02
Document ID: 20040079786
Trends in the Vertical Distribution of Ozone: A Comparison of Two Analyses of Ozonesonde Data
Author(s): Loogan, J. A.; Megretskaia, I. A.; Miller, A. J.; Tiao, G. C.; Choi, D.; Zhang, L.; Bishop, L.; Stolarski, R.; Labow, G. J.; Hollandsworth, S. M.; Bodeker, G. E.; Claude, H.; DeMuer, D.; Kerr, J. B.; Tarasick, D. W.; ...
Abstract: We present the results of two independent analyses of ozonesonde measurements of the vertical profile of ozone. For most of the ozonesonde stations we use data that were recently reprocessed and reevaluated to improve their ...
NASA Center: Goddard Space Flight Center, Langley Research Center, Wallops Flight Facility
Publication Year: 1998
Added to NTRS: 2008-06-02
Document ID: 19980237966
Application of Artificial Intelligence Techniques in Uninhabited Aerial Vehicle Flight
Author(s): Dufrene, Warren R., Jr.
Abstract: This paper describes the development of an application of Artificial Intelligence (AI) for Unmanned Aerial Vehicle (UAV) control. The project was done as part of the requirements for a class in AI at NOVA Southeastearn ...
NASA Center: Wallops Flight Facility
Publication Year: 2004
Added to NTRS: 2008-06-02
Document ID: 20040082071
Outlet Glacier and Margin Elevation Changes: Near - Coastal Thinning of The Greenland Ice Sheet
Author(s): Abdalati, W.; Krabill, W.; Frederick, E.; Manizade, S.; Martin, C.; Sonntag, J.; Swift, R.; Thomas, R.; Wright, W.; Yungel, J.
Abstract: Repeat surveys by aircraft laser altimeter in 1993/4 and 1998/9 reveal significant thinning along 70% of the coastal parts of the Greenland ice sheet at elevations below about 2000 m. Thinning rates of more than 1 m/yr are ...
NASA Center: Goddard Space Flight Center, Wallops Flight Facility
Publication Year: 2000
Added to NTRS: 2008-06-02
Document ID: 20000091536
The Southern Hemisphere Additional Ozonesondes (SHADOZ) 1998-2002 Tropical Ozone Climatology
Author(s): Thompson, Anne M.; Witte, Jacqueline C.; Smit, Herman G. J.; Oltmans, Samuel J.; Johnson, Bryan J.; Kirchhoff, Volker W. J. H.; Schmidlin, Francis J.
Abstract: Abstract: Since 1998 the Southern Hemisphere ADditional OZonesondes (SHADOZ) project has collected more than 2000 ozone profiles from a dozen tropical and subtropical sites using balloon-borne electrochemical concentration ...
NASA Center: Goddard Space Flight Center, Wallops Flight Facility
Publication Year: 2004
Added to NTRS: 2008-06-02
Document ID: 20040161494
Preliminary Results from NASA/GSFC Ka-Band High Rate Demonstration for Near-Earth Communications
Author(s): Wong, Yen; Gioannini, Bryan; Bundick, Steven N.; Miller, David T.
Abstract: In early 2000, the National Aeronautics and Space Administration (NASA) commenced the Ka-Band Transition Project (KaTP) as another step towards satisfying wideband communication requirements of the space research and earth ...
NASA Center: Goddard Space Flight Center, Wallops Flight Facility
Publication Year: 2004
Added to NTRS: 2008-06-02
Document ID: 20040081420
The 1998-2000 SHADOZ (Southern Hemisphere ADditional OZonesondes) Tropical Ozone Climatology
Author(s): Thompson, Anne M.; Witte, Jacquelyn C.; Oltmans, Samuel J.; Schmidlin, Francis J.; Logan, Jennifer A.; Fujiwara, Masatomo; Kirchhoff, Volker W. J. H.; Posny, Francoise; Coetzee, Gert J. R.; Hoegger, Bruno, et al.
Abstract: This is the second 'reference' or 'archival' paper for the SHADOZ (Southern Hemisphere Additional Ozonesondes) network and is a follow-on to the recently accepted paper with similar first part of title. The latter paper ...
NASA Center: Goddard Space Flight Center, Wallops Flight Facility
Publication Year: 2002
Added to NTRS: 2008-06-02
Document ID: 20020070808
Development of High Resolution Hard X-Ray Telescope with Multilayer Coatings
Author(s): Gorenstein, Paul
Abstract: The major objective of this program is the development of a focusing hard X-ray telescope with moderately high angular resolution, i .e. comparable to the telescopes of XMM-Newton. The key ingredients of the telescope are a ...
NASA Center: Goddard Space Flight Center, Wallops Flight Facility
Publication Year: 2004
Added to NTRS: 2008-06-02
Document ID: 20040030516
A New Raman Water Vapor Lidar Calibration Technique and Measurements in the Vicinity of Hurricane Bonnie
Author(s): Evans, Keith D.; Demoz, Belay B.; Cadirola, Martin P.; Melfi, S. H.; Whiteman, David N.; Schwemmer, Geary K.; Starr, David OC.; Schmidlin, F. J.; Feltz, Wayne, et al.
Abstract: The NAcA/Goddard Space Flight Center Scanning Raman Lidar has made measurements of water vapor and aerosols for almost ten years. Calibration of the water vapor data has typically been performed by comparison with another ...
NASA Center: Goddard Space Flight Center, Wallops Flight Facility
Publication Year: 2000
Added to NTRS: 2008-06-02
Document ID: 20000052466
Approach for Autonomous Control of Unmanned Aerial Vehicle Using Intelligent Agents for Knowledge Creation
Author(s): Dufrene, Warren R., Jr.
Abstract: This paper describes the development of a planned approach for Autonomous operation of an Unmanned Aerial Vehicle (UAV). A Hybrid approach will seek to provide Knowledge Generation through the application of Artificial ...
NASA Center: Wallops Flight Facility
Publication Year: 2004
Added to NTRS: 2008-06-02
Document ID: 20040171570
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