star pdf file

20030032241 NASA Wallops Flight Center, Wallops Island, VA, USA
Advancement in LIDAR Data Collection: NASA’s Experimental Airborne Advanced Research LIDAR
Riordan, Kevin; Wright, C. Wayne; Noronha, Conan; [2003]; 1 pp.; In English; Coastal Geo Tools Conference, 6-9 Jan. 2003,
Charleston, SC, USA; No Copyright; Avail: Other Sources; Abstract Only
The NASA Experimental Airborne Advanced Research LIDAR (EAARL) is a new developmental LIDAR designed to
investigate and advance LIDAR techniques using a adaptive time resolved backscatter information for complex coastal
research and monitoring applications. Information derived from such an advanced LIDAR system can potentially improve the
ability of resource managers and policy makers to make better informed decisions. While there has been a large amount of
research using LIDAR in coastal areas, most are limited in the amount of information captured from each laser pulse. The
unique design of the EAARL instrument permits simultaneous acquisition of coastal environments which include subaerial
bare earth topography, vegetation biomass, and bare earth beneath vegetated areas.
Author
Optical Radar; Vegetation Growth; Airborne Equipment; Research And Development; Data Acquisition
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ENERGY PRODUCTION AND CONVERSION
Includes specific energy conversion systems, e.g., fuel cells; and solar, geothermal, windpower, and waterwave conversion systems;
energy storage; and traditional power generators. For technologies related to nuclear energy production see 73 Nuclear Physics. For
related information see also 07 Aircraft Propulsion and Power; 20 Spacecraft Propulsion and Power; and 28 Propellants and Fuels.
20030022670 NASA Glenn Research Center, Cleveland, OH, USA
Future Photovoltaic Power Generation for Space-Based Power Utilities
Bailey, Sheila; Landis, Geoffrey; Hepp, Aloysius; Raffaelle, Ryne; [2002]; 11 pp.; In English; 53rd International Astronautical
Congress: The World Space Congress-2002, 10-19 Oct. 2002, Houston, TX, USA
Report No.(s): IAF-02-R.4.06; E-13688; Copyright; Avail: CASI; A03, Hardcopy
This paper discusses requirements for large earth orbiting power stations that can serve as central utilities for other
orbiting spacecraft, or for beaming power to the earth itself. The current state of the art of space solar cells, and a variety of
both evolving thin film cells as well as new technologies that may impact the future choice of space solar cells for high power
mission applications are addressed.
Author
Spacecraft Power Supplies; Power Beaming; Solar Generators; Solar Power Satellites; Large Space Structures; Satellite
Power Transmission; Thin Films
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GEOPHYSICS
Includes Earth structure and dynamics, aeronomy; upper and lower atmosphere studies; ionospheric and magnetospheric physics; and
geomagnetism. For related information see 47 Meteorology and Climatology; and 93 Space Radiation.
20030020872 Smithsonian Astrophysical Observatory, Cambridge, MA, USA
Evolution of Galaxies and the Star Formation Rate in the Infrared
Pahre, Michael A.; Oliversen, Ronald J., Technical Monitor; March 2003; 4 pp.; In English
Contract(s)/Grant(s): NAG5-10777; No Copyright; Avail: CASI; A01, Hardcopy
A central goal of extragalactic observational astronomy is to understand how normal galaxies evolve with redshift, and
particularly when galaxies formed their stars. While optical and rest-frame UV observations have begun to address these
issues, the interpretation of such data is particularly challenging because of the sensitivity to dust obscuration (at optical and
UV wavelengths). The absorbed light is re-radiated at IR wavelengths, hence the optimal indicators of the star formation rate
(SFR) is at a rest-frame wavelength of approx. 60 microns. The SIRTF mission will revolutionize the study of the global
evolution of the SFR by providing mass-selected, complete samples of galaxies and far-IR estimators of the SFR. SIRTF will
be two orders of magnitude more sensitive than previous IR space missions, and therefore will open up a completely new
region of parameter space in sensitivity and angular resolution. This research program will study the SFR using statistical
samples of galaxies in the local universe, at intermediate redshifts, and set the stage for continuing studies up to z=5.The
overall research program is divided into three main investigations: a Mid-IR Hubble Atlas and SFR estimators in the local
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