Zobrazeno 1 - 10
of 12
pro vyhledávání: '"J. E. Lokken"'
Publikováno v:
Canadian Journal of Earth Sciences. 11:755-767
A method of predicting, to continental ranges, both the radial and tangential magnetic field intensities of extremely low frequency transmissions has been developed and confirmed by measurement. At the test frequencies, 45 and 75 Hz, the two componen
Publikováno v:
Journal of geomagnetism and geoelectricity. 35:529-541
The electromagnetic response of the Assistance Bay region (N. W. T., Canada) is studied using laboratory analogue model and field station measurements. Magnetic field components for the frequency range 0.1-15Hz, which includes the well known lightnin
Publikováno v:
Physics of the Earth and Planetary Interiors. 39:178-181
An oscillating vertical line current source was used in the laboratory to simulate the naturally occurring 8 Hz Schumann Resonance field due to lightning strokes. Vertical to horizontal magnetic field ratios (coast effect), and magnetotelluric ratios
Publikováno v:
Journal of Geophysical Research. 68:789-794
Near 1 cps the natural background consists of a comparatively steady, low -level, white'' continuum relieved occasionally by the intrusion of either regular or impulsive geomagnetic signals, as well as by the normal occurrence of sferics. The amplitu
Autor:
J. E. Lokken, C. S. Wright
Publikováno v:
Canadian Journal of Physics. 43:1373-1387
This report deals with micropulsation data measured at Fort Churchill and at the near-conjugate stations of Byrd and Great Whale River during the conjugate-point experiment by Stanford University and Pacific Naval Laboratory. All three stations are i
Publikováno v:
Canadian Journal of Physics. 40:1000-1009
Simultaneous measurements in the frequency range 0.003 to 30 c.p.s. at a number of widely spaced stations have led to the identification of two general micropulsation classes, impulsive and regular, as well as to an adjacent but independent extremely
Autor:
J. E. Lokken, J. A. Shand
Publikováno v:
Canadian Journal of Physics. 42:1902-1907
In the electromagnetic spectrum between 6 and 36 c.p.s. several classes of manmade noise have been observed in rural areas adjacent to cities. Their probable sources are suggested. In many Canadian semirural areas this interference, though appreciabl
Publikováno v:
Nature. 192:319-321
Autor:
J. E. Lokken
Publikováno v:
Natural Electromagnetic Phenomena below 30 kc/s ISBN: 9781489962102
If the lower limit of frequencies, of interest to this Institute, is somewhat arbitrarily set at 0.001 cps, the central octave of the band falls between 1 and 2 cps. Our colleague, Sir Charles Wright, has often referred to this region as a “no man
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1edb941072619df2ee134afeeba89d3
https://doi.org/10.1007/978-1-4899-6425-0_18
https://doi.org/10.1007/978-1-4899-6425-0_18
Autor:
J. E. Lokken
Publikováno v:
Canadian Journal of Physics. 32:359-360