Zobrazeno 1 - 10
of 103
pro vyhledávání: '"E. L. Hagg"'
Autor:
E. L. Hagg, G. H. Hanson
Publikováno v:
Canadian Journal of Physics. 32:790-798
Examination of records taken in rapid succession at ionospheric stations in Northern Canada has revealed three distinctive types of echoes corresponding to clouds of ionization in motion. One type is ascribed to clouds of sporadic E moving horizontal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27ea5cea623605bc41ca632b44c16863
https://doi.org/10.1139/p54-087
https://doi.org/10.1139/p54-087
Autor:
E. L. Hagg
Publikováno v:
Canadian Journal of Physics. 41:195-199
Study of data from the DRTE satellite on electron densities at the satellite and at the F-layer maximum reveals little day-to-day variation at 1000 km but large variations at the F-layer maximum, depending on the degrees of latitude. A magnetic distu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cf7515c1f4092f214adc4b273915b47
https://doi.org/10.1139/p63-023
https://doi.org/10.1139/p63-023
Publikováno v:
Journal of Geophysical Research. 70:4347-4356
The apparent reflection coefficients of the ionosphere for high frequency radio waves have been studied using vertical incidence pulse amplitude data obtained at Prince Rupert. The F-layer first-hop reflection coefficient increases in magnitude as th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7808daf414c0f948025196b76468d501
https://doi.org/10.1029/jz070i017p04347
https://doi.org/10.1029/jz070i017p04347
Autor:
E. L. Hagg
Publikováno v:
Canadian Journal of Physics. 45:27-36
Alouette II topside ionograms recorded at high latitudes (L ≈ 6 or greater) and high altitudes (1 500–3 000 km) show an interference pattern between the electron gyro and the electron hybrid resonance spikes, when the electron density at the sate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e43100ef3947d9c2bfd51d576f88928
https://doi.org/10.1139/p67-005
https://doi.org/10.1139/p67-005
Autor:
W. Rolfe, E. L. Hagg
Publikováno v:
Canadian Journal of Physics. 41:220-233
Both great-circle and off-path propagation modes have been investigated on a transatlantic path. Measurements of signal strength and azimuthal bearing were made at Ottawa, Canada, on the 41.5-Mc/s BBC TV sound channel transmissions during the winter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ab82d08f9315c27394997fed10ea254
https://doi.org/10.1139/p63-028
https://doi.org/10.1139/p63-028
Autor:
E. L. Hagg, D. B. Muldrew
Publikováno v:
Canadian Journal of Physics. 44:925-939
Characteristics of an extraordinary wave trace recently identified on Alouette I topside ionograms, and called the remote resonance trace by Hagg (1966), are discussed in detail. From the observations it has been deduced that the radio energy associa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8935331e620d127ac5ff888efc8a40a0
https://doi.org/10.1139/p66-077
https://doi.org/10.1139/p66-077
Autor:
E. L. Hagg
Publikováno v:
Nature. 210:927-929
A NOVEL cyclotron resonance phenomenon associated with the second harmonic of the electron gyrofrequency 2fH is sometimes observed on Alouette topside ionograms. The phenomenon occurs remote from the satellite and will consequently be called the ‘r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77e7b03c934502bd04fadeaf81b48a59
https://doi.org/10.1038/210927b0
https://doi.org/10.1038/210927b0
Autor:
E. S. Warren, E. L. Hagg
Publikováno v:
Nature. 220:466-468
THE theory of electrostatic waves is highly developed1–3. The propagation of electrostatic waves has been observed in laboratory plasmas by measuring the time required for a pulse of these waves to travel between antennae imbedded in the plasma4. R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5a4dff649c2e1fb1a2ef66857580a4a
https://doi.org/10.1038/220466a0
https://doi.org/10.1038/220466a0
Autor:
E. Warren, E. L. Hagg
Publikováno v:
Nature. 181:34-35
IT has been established that radio waves can be propagated between Ottawa in Canada and Slough in England by a single ionospheric reflexion. The one-hop mode of propagation is seen on the accompanying ionogram (Fig. 1) at frequencies between 27 and 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a79e21daff6b407fc4911eac6a70874
https://doi.org/10.1038/181034b0
https://doi.org/10.1038/181034b0
Autor:
Gurnett, D.A.1 donald-gurnett@uiowa.edu, Kirchner, D.L.1, Huff, R.L.1, Morgan, D.D.1, Persoon, A.M.1, Averkamp, T.F.1, Duru, F.1, Nielsen, E.2, Safaeinili, A.3, Flaut, J.J.3, Picardi, G.4
Publikováno v:
Science. 12/23/2005, Vol. 310 Issue 5756, p1929-1933. 5p. 2 Color Photographs, 3 Graphs.