Now showing items 11-20 of 26
Cassini Radio Science
(Kluwer Academic Publishers; Springer Science+Business Media, 2004-11)
Cassini radio science investigations will be conducted both during the cruise (gravitational wave and conjunction experiments) and the Saturnian tour of the mission (atmospheric and ionospheric occultations, ring occultations, ...
An unusual SAR arc observed during ring current development, 4 August 1972
(Elsevier, 1980-01)
Measurements made from the ISIS-II spacecraft at 1400 km and ground-based measurements from New Zealand provide a detailed description of an unusual SAR arc observed at dusk on 4 August 1972, during the growth phase of the ...
The effect of conjugate photoelectron impact ionization on the pre-dawn ionosphere
(Elsevier, 1973-12)
Theoretical calculations using photoelectron fluxes measured by a soft particle spectrometer on ISIS-2 as input data show that impact ionization by photoelectrons arriving from the sunlit conjugate region is insignificant ...
A computer simulation of the midlatitude plasmasphere and ionosphere
(Elsevier, 1980-08)
The main objective of this paper is to report the development of a new computer model to simulate species density, temperature and plasma flow in the ionosphere and plasmasphere. The paper provides a general description ...
Thermal electron energy distribution measurements in the ionosphere
(Elsevier, 1973-08)
Results of electron spectrometer and cylindrical Langmuir probe measurements of ionospheric electron energy distribution in the range from about 0[middle dot]2 eV to 4[middle dot]0 eV are presented and discussed in this paper.
Calculated [OI] 6300 A nightglow doppler temperatures for solar cycle minimum
(Elsevier, 1968-09)
The effective doppler temperatures of the nightglow [OI]6300 A line are calculated using the data of Evans (1967) for electron density and ion temperature variations throughout the night during solar cycle minimum. These ...
Interferometric measurements of the [lambda] 7319 A doublet emissions of OII
(Elsevier, 1974-04)
Fabry-Perot interferometer observations of the OII 7319 A line made from College, Alaska are presented. Significant Doppler shifts corresponding to the ion drift motion, caused by the convection electric fields, were ...
Photometric and interferometric observations of a mid-latitude stable auroral red arc
(Elsevier, 1970-03)
Observational results of the mid-latitude stable auroral red arcs of October 30/31 and October 31/November 1, 1968 are presented. The measurements were made with a turret photometer and a 6 in. dia. high resolution, pressure ...
Stable mid-latitude red arcs: Observations and theory
(Kluwer Academic Publishers; D. Reidel Publishing Company ; Springer Science+Business Media, 1970-12)
The observational features of the arc are fairly well established. At present, the thermal conduction model appears to explain the red arc features most consistently, but it must be noted that a soft electron flux would ...
Models of Venus neutral upper atmosphere: Structure and composition
(Elsevier, 1985)
Models of the Venus neutral upper atmosphere, based on both in-situ and remote sensing measurements, are provided for the height interval from 100 to 3,500 km. The general approach in model formulation was to divide the ...