Aircraft reports of cirriform clouds on certain high latitude routes and California to Honolulu.
Aircraft high level cloud data to estimate vertical distribution of cirriform clouds and tropical tropopause levels on airline routes
Graves, M. E.↗
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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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Flux and energy spectrum of cosmic-ray electrons at 42 deg north geomagnetic latitude in October 1967.
Cosmic ray electron flux and energy spectrum from balloon data obtained at Palestine, Texas, monitoring proton flux periodically
Frye, G. M., Jr.↗
Measurements of electron cooling rates in the mid-latitude and auroral-zone thermosphere.
Electron cooling rates in midlatitude and auroral zone thermosphere measured by probe rockets
Brace, L. H.↗
Latitude variation of the lower ionosphere.
Lower ionospheric electron concentration and collision frequency measurements by Nike-Apache rockets, suggesting geomagnetic anomaly in D region
Mechtly, E. A.↗
The latitude variation of fast and slow neutrons at aircraft altitudes during solar minimum
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Korff, S. A.↗
Cosmic-ray positrons and negatrons of energies 10 to 250 MeV at 85 deg geomagnetic latitude
Balloon measurements of cosmic ray positron and negatron intensities near North Pole
Cline, T. L.↗
Tidal friction with latitude-dependent amplitude and phase angle
Tidal disturbing functions developed with amplitude factor and lag angle expressed as sums of zonal spherical harmonics, discussing lunar formation and orbit evolution
Kaula, W. M.↗
High-latitude plasma transport - The polar wind
Plasma transport models of polar ionosphere, discussing physical processes involved and effects on electron concentration, ion composition and speeds
Banks, P. M.↗
Seasonal transitions in the thermal structure of the mesosphere at high latitudes
Thermal structure transition of mesosphere at high altitudes from persistent summertime to dynamic wintertime case
Smith, W. S.↗
Cosmic ray positrons and negatrons of energies 10 to 250 MeV at 85 deg geomagnetic latitude
Cosmic ray positrons and negatrons differential intensities near north geomagnetic pole from balloon flight measurements, noting solar modulation effects
Cline, T. L.↗
Mid-latitude rocket observations of the altitude profile of the O2 /a /1 Delta g//-/X /3 Sigma g plus// transition
Nike-Apache rocket carrying radiometer for detection of O2 /a /1 Delta g//-/X /3 Sigma g plus// transition
Jones, W. H.↗
Tilt angle dependence of 10 MeV proton cutoff latitudes
Tilt angle dependence of 10 MeV proton cutoff lattitudes in image dipole model magnetosphere
Burch, J. L.↗
Dynamical behavior of thermal protons in the mid-latitude ionosphere and magnetosphere
Midlatitude ionosphere and magnetosphere thermal protons dynamic behavior, investigating magnetic storm effects
Axford, W. I.↗
Detection of soft corpuscular radiation at 320 km height in the near-equatorial latitudes
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Savenko, I. A.↗
Joint measurements of wind and temperature structure in the winter mesosphere at high latitudes
An attempt to identify propagating internal gravity waves in the mesosphere was made by sounding the region with three instrumented rockets on January 13-14, 1970, from Churchill, Canada (59 N). The three observations, which were conducted at approximately 90 min. intervals, consisted of a pitot probe bracketed by two acoustic grenade soundings. Thus, two temperature and wind profiles and one density profile were obtained independently, permitting an examination of the thermodynamic structure and the wind structure. The results of the combined thermodynamic and wind observations were found to be quantitatively compatible with a gravity wave interpretation. This interpretation also predicts vertical velocities on the order of 10/msec in the 80 km region.
Eberstein, I. J.↗
Theoretical model for the latitude dependence of the thermospheric annual and semiannual variations
A three-dimensional model for the annual and semiannual variations of the thermosphere is presented in which energy and diffusive mass transport associated with the global circulation are considered in a self-consistent form. It is shown that these processes play a major role in the thermosphere dynamics and account for a number of temperature and compositional phenomena.
Mayr, H. G.↗
The advantages of side-lap stereo interpretation of ERTS-1 imagery in northern latitudes
There are no author-identified significant results in this report.
Poulton, C. E.↗
Magnetic control of the high latitude thermosphere
Observations made by the neutral mass spectrometer on board the polar orbiting OGO-6 satellite are given. Measurements were taken of the composition, density, and cyclic variations of gases in the high altitude thermosphere. Data were taken during the quiet magnetic period of August and early September 1969.
Hedin, A. E.↗