Visual interpretation and time series modeling of Landsat imagery highlight drought's role in forest canopy declines
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Ultraviolet spectra of planetary atmospheres and the near infrared carbon dioxide bands of venus
Ultraviolet spectra of planetary atmospheres and the near infrared carbon dioxide bands of venus
Meteoroid hazard to spacecraft in orbit near the earth
Kp index and m-region geomagnetic storms
Reflection spectra of bio-organic materials and its use in evaluating the absorption bands of mars
Hall-current variations, as a function of magnetic field strength, are measured in an ion accelerator, for axial electric discharges in radial magnetic fields
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Beta lyrae - theory of photometric and spectrographic behavior with model
Mathematical analysis of radiation injury incidence in cell culture
Recognition of cloud pattern from films taken by tiros satellite
Earth radiation measurements by meteorological satellites
Several more or less unsatisfactory theories have been proposed for the origin of lunar sinuous rills such as Schroeter's Valley. This paper presents a new explanation of the formation of these rills, namely, that they are valleys eroded by nuees ardentes. Characteristics of the rills, including form and association, are cited in support of this theory. Supporting evidence is found in the similarity of the rills to furrows eroded by nuees ardentes on the earth.
Generation mechanisms of radio and x-ray bursts from solar flares - bremsstrahlung from solar plasma, gyro and synchrotron radiation from electrons, and plasma radiation
Optimization of palmgren-miner determinations of cumulative fatigue damage
Rocket measurement of electron density in low ionosphere