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– In support of the International Polar Year (IPY), NASA's Airborne Science Program funded the development and demonstration of five autonomous sensor systems for unmanned aircraft systems (UAS) for Arctic remote sensing science. Following development, all five systems flew successful missions during 2009 and 2010. The missions were:-" Sea Ice Roughness as… (More)
A small sampling probe with a compact in-line absorption cell has been combined with tunable diode laser absorption spectroscopy for measuring mole fractions of IR-active species in combustion gases with temporal and spatial resolution. The system characteristics are described, and initial results are reported for CO in a CO/air turbulent diffusion flame.
NASA's Airborne Science Program (ASP) maintains a fleet of manned and unmanned aircraft for Earth Science measurements and observations. The unmanned aircraft systems (UAS) range in size from very large (Global Hawks) to medium (SIERRA, Viking) and relatively small (DragonEye). UAS fly from very low (boundary layer) to very high altitude (stratosphere).… (More)
Vehicles and power plants fueled by hydrogen produce virtually no pollutant emissions and are projected to become a serious alternative to hydrocarbon-fueled systems in the future. The transportation sector is already adopting hydrogen in a limited way. Current hydrogen vehicle designs produce power by consuming hydrogen in either a fuel cell or an internal… (More)