Zobrazeno 1 - 10
of 38
pro vyhledávání: '"E Titheridge"'
Autor:
J. E. Titheridge
Publikováno v:
Annales Geophysicae, Vol 15, Pp 63-78 (1997)
A new, empirical model for NO densities is developed, to include physically reasonable variations with local time, season, latitude and solar cycle. Model calculations making full allowance for secondary production, and ionising radiations at wave
Externí odkaz:
https://doaj.org/article/f4290a32750f4f22b1c03b3d89354749
Publikováno v:
British Journal of Healthcare Management. 11:111-115
Services to those suffering from Parkinson's Disease (PD) lack a co-ordinated multi-professional approach andoften include serious shortcomings.
Autor:
J. E. Titheridge
Publikováno v:
Journal of Geophysical Research: Space Physics. 103:2261-2277
Modeling of the topside ionosphere requires a knowledge of the electron and ion temperatures (T e and T i as a function of height. Data in the International Reference Ionosphere (IRI) model are sometimes conflicting, and extend only up to 3000 km. An
Publikováno v:
Journal of Geophysical Research: Space Physics. 102:14477-14484
We carry out a detailed comparison between winds derived from F2 peak heights and winds obtained from incoherent scatter radar (ISR) line-of-sight velocity measurements. A total of 34 incoherent scatter radar experiments at Millstone Hill spanning al
Autor:
J. E. Titheridge
Publikováno v:
Journal of Geophysical Research: Space Physics. 101:357-369
Model calculations for the ionospheric E and F1 regions yield electron densities which are much too small, if no allowance is made for the production of secondary ionization by primary photoelectrons. Full calculations of this secondary production ar
Autor:
J. E. Titheridge
Publikováno v:
Radio Science. 23:831-849
A new procedure is described for the calculation of real height profiles from ionospheric h′(ƒ) records. The equations are formulated in a way which can reproduce all current methods of analysis, and provide many powerful extensions. For general u
Autor:
J. E. Titheridge
Publikováno v:
Radio Science. 20:247-256
A formulation is described which uses plasma frequency F as a function of real height h near a layer peak. This allows profile data from lower heights, and scaled critical frequencies from both magnetoionic components, to be combined in a single leas
Autor:
J. E. Titheridge
Publikováno v:
Journal of Geophysical Research. 81:3227-3233
Values of plasma temperature and O+/H+ ion transition height, obtained from 60,000 Alouette 1 electron density profiles, are used to study changes associated with the plasmapause. An ionospheric plasmapause can be defined by (1) the latitude at which
Autor:
J. E. Titheridge
Publikováno v:
Planetary and Space Science. 22:209-222
Routine measurements of the slab thickness of the ionosphere, from 1965 to 1971, are used to infer the changes in neutral temperature and ion composition at a mean latitude of 40 S. Values of neutral temperature at solar maximum are 5 to 10% above No
Autor:
J. E. Titheridge
Publikováno v:
Journal of Geophysical Research. 81:3221-3226
An analysis of 60,000 Alouette 1 electron density profiles has given values for the mean plasma temperature at heights of 400–1000 km for latitudes from 70°S to 85°N. Most results are for winter day conditions in the northern hemisphere; these sh