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There are a total of 24007 record(s) matching your query.
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Characteristics of the Atmospheric CO2 Signal as Observed over the Conterminous United States during INTEX-NA
Author(s): Choi, Yonghoon; Vay, Stephanie A.; Vadrevu, Krishna P.; Soja, Amber J.; Woo, Jung-Hun; Nolf, Scott R.; Sachse, Glen W.; Diskin, Glenn S.; Blake, Donald R.; Blake, Nicola J.; Singh, Hanwant B.; Avery, Melody A.; Fried, Alan; ...
Abstract: High resolution in situ measurements of atmospheric CO2 were made from the NASA35 UND DC-8 aircraft during the Intercontinental Chemical Transport Experiment. North America (INTEX-NA) campaign, part of the wider ...
NASA Center: Ames Research Center, Langley Research Center
Publication Year: 2007
Added to NTRS: 2009-02-02
Document ID: 20090004899; Report Number: LF99-5242
Comparison of CERES-MODIS Stratus Cloud Properties with Ground-Based Measurements at the DOE ARM Southern Great Plains Site
Author(s): Dong, Xiquan; Minnis, Patrick; Xi, Baike; Sun-Mack, Sunny; Chen, Yan
Abstract: Global satellite data are critical for both verifying and improving GCM cloud parameterizations for climate prediction, but their utility is limited without a reasonable estimate of the errors in the satellite-derived cloud ...
NASA Center: Langley Research Center
Publication Year: 2007
Added to NTRS: 2009-01-30
Document ID: 20090004698
High Temperature Characteristics of Coplanar Waveguide on R-Plane Sapphire and Alumina
Author(s): Ponchak, George E.; Jordan, Jennifer L.; Scardelletti, Maximilian C.
Abstract: This paper presents the characteristics of coplanar waveguide transmission lines on R-plane sapphire and alumina over the temperature range of 25 to 400 C and the frequency range of 45 MHz to 50 GHz. A Thru-Reflect-Line ...
NASA Center: Glenn Research Center
Publication Year: 2007
Added to NTRS: 2009-01-30
Document ID: 20090004799; Report Number: E-16863
Electronics for Low Temperature Space Exploration Missions
Author(s): Patterson, Richard L.; Hammoud, Ahmad; Elbuluk, Malik
Abstract: Exploration missions to outer planets and deep space require spacecraft, probes, and on-board data and communication systems to operate reliably and efficiently under severe harsh conditions. On-board electronics, in ...
NASA Center: Glenn Research Center
Publication Year: 2007
Added to NTRS: 2009-01-30
Document ID: 20090004678; Report Number: E-16852
Space Invariant Independent Component Analysis and ENose for Detection of Selective Chemicals in an Unknown Environment
Author(s): Duong, Tuan A.; Ryan, Margaret A.; Duong, Vu A.
Abstract: In this paper, we present a space invariant architecture to enable the Independent Component Analysis (ICA) to solve chemical detection from two unknown mixing chemical sources. The two sets of unknown paired mixture sources ...
NASA Center: Jet Propulsion Laboratory
Publication Year: 2007
Added to NTRS: 2009-01-30
Document ID: 20090004668
General Mission Analysis Tool (GMAT) Architectural Specification. Draft
Author(s): Hughes, Steven P.; Conway, Darrel, J.
Abstract: Early in 2002, Goddard Space Flight Center (GSFC) began to identify requirements for the flight dynamics software needed to fly upcoming missions that use formations of spacecraft to collect data. These requirements ranged ...
NASA Center: Goddard Space Flight Center
Publication Year: 2007
Added to NTRS: 2009-01-29
Document ID: 20090004618
Uncertainties Associated With the Surface Texture of Ice Particles in Satellite-Based Retrieval of Cirrus Clouds
Author(s): Yang, Ping; Hong, Gang; Kattawar, George W.; Minnis, Patrick; Hu, Yong X.
Abstract: The effect of the surface roughness on the retrieval of the optical and microphysical properties of cirrus clouds is investigated. The simplified ray-tracing technique reported in the first part of this study (hereafter, ...
NASA Center: Langley Research Center
Publication Year: 2007
Added to NTRS: 2009-01-28
Document ID: 20090004565
Uncertainties Associated with the Surface Texture of Ice Particles in Satellite-Based Retrieval of Cirrus Clouds
Author(s): Yang, Ping; Kattawar, George W.; Hong, Gang; Minnis, Patrick; Hu, Yong X.
Abstract: Surface roughness of ice crystals is a morphological parameter important to the scattering characteristics of these particles. The intent of this study, reported in two parts (hereafter, Part I and II), is to investigate the ...
NASA Center: Langley Research Center
Publication Year: 2007
Added to NTRS: 2009-01-28
Document ID: 20090004563; Report Number: LF99-5036
Solar Occultation Satellite Data and Derived Meteorological Products: Sampling Issues and Comparisons With Aura MLS Data
Author(s): Manney, Gloria L.; Daffer, William H.; Zawodny, Joseph M.; Bernath, Peter F.; Hoppel, Karl W.; Deaver, Lance; Walker, Kaley A.; McLeod, Sean; Knosp, Brian W.; Boone, Chris; Remsberg, Ellis E.; Trepte, Charles R.; Santee, ...
Abstract: Derived Meteorological Products (DMPs, including potential temperature (theta), potential vorticity, equivalent latitude (EqL), horizontal winds and tropopause locations) have been produced for the locations and times of ...
NASA Center: Goddard Space Flight Center, Jet Propulsion Laboratory, Langley Research Center
Publication Year: 2007
Added to NTRS: 2009-01-28
Document ID: 20090004560; Report Number: LF99-4905
Assessment of SOI Devices and Circuits at Extreme Temperatures
Author(s): Elbuluk, Malik; Hammoud, Ahmad; Patterson, Richard L.
Abstract: Electronics designed for use in future NASA space exploration missions are expected to encounter extreme temperatures and wide thermal swings. Such missions include planetary surface exploration, bases, rovers, landers, ...
NASA Center: Glenn Research Center
Publication Year: 2007
Added to NTRS: 2009-01-28
Document ID: 20090004549; Report Number: E-16835
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