MEASUREMENTS OF THE EARTH-IONOSPHERIC CAVITY RESONANCE FREQUENCIES AT HIGH LATITUDE
The earth-ionospheric cavity resonance frequencies were measured by two methods somewhat different from that employed hitherto by other workers. The instruments used were all battery-operated. The recordings have been carried out close to Isfjord Radio, Spitzbergen (geographic latitude 78 deg 03.9 m...
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ftdtic:AD0632299 2023-05-15T17:43:27+02:00 MEASUREMENTS OF THE EARTH-IONOSPHERIC CAVITY RESONANCE FREQUENCIES AT HIGH LATITUDE Egeland,Alv Larsen,Trygve Roed NORWEGIAN INST OF COSMIC PHYSICS UNIV OF OSLO 1966-02-21 text/html http://www.dtic.mil/docs/citations/AD0632299 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0632299 en eng http://www.dtic.mil/docs/citations/AD0632299 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Atmospheric Physics Radiofrequency Wave Propagation *RADIO WAVES GEOPHYSICS ELECTROMAGNETISM ATMOSPHERICS RESONANT FREQUENCY NORWAY Text 1966 ftdtic 2016-02-21T23:24:54Z The earth-ionospheric cavity resonance frequencies were measured by two methods somewhat different from that employed hitherto by other workers. The instruments used were all battery-operated. The recordings have been carried out close to Isfjord Radio, Spitzbergen (geographic latitude 78 deg 03.9 min N) and close to Lavangsdalen, Northern - Norway (geographic latitude 69 deg 15.5 min N) during 1965. It has been possible to record detailed power spectra of these cavity resonances by integration over only a few seconds of data. Between DC and 45 c/s average peak frequencies at (7.78 plus or minus 0.08), (14.05 plus or minus 0.15), (20.3 plus or minus 0.2), (32.1 plus or minus 0.2), 32.1 plus or minus 0.3), 37.1 plus or minus 0.3) and 42.9 plus or minus 0.4) c/s have been observed. Also at frequencies above 45 c/s there seems to be strong indications of higher resonance modes. (Author) Text Northern Norway Spitzbergen Defense Technical Information Center: DTIC Technical Reports database Isfjord ENVELOPE(-26.917,-26.917,73.333,73.333) Lavangsdalen ENVELOPE(19.243,19.243,69.442,69.442) Norway |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Atmospheric Physics Radiofrequency Wave Propagation *RADIO WAVES GEOPHYSICS ELECTROMAGNETISM ATMOSPHERICS RESONANT FREQUENCY NORWAY |
spellingShingle |
Atmospheric Physics Radiofrequency Wave Propagation *RADIO WAVES GEOPHYSICS ELECTROMAGNETISM ATMOSPHERICS RESONANT FREQUENCY NORWAY Egeland,Alv Larsen,Trygve Roed MEASUREMENTS OF THE EARTH-IONOSPHERIC CAVITY RESONANCE FREQUENCIES AT HIGH LATITUDE |
topic_facet |
Atmospheric Physics Radiofrequency Wave Propagation *RADIO WAVES GEOPHYSICS ELECTROMAGNETISM ATMOSPHERICS RESONANT FREQUENCY NORWAY |
description |
The earth-ionospheric cavity resonance frequencies were measured by two methods somewhat different from that employed hitherto by other workers. The instruments used were all battery-operated. The recordings have been carried out close to Isfjord Radio, Spitzbergen (geographic latitude 78 deg 03.9 min N) and close to Lavangsdalen, Northern - Norway (geographic latitude 69 deg 15.5 min N) during 1965. It has been possible to record detailed power spectra of these cavity resonances by integration over only a few seconds of data. Between DC and 45 c/s average peak frequencies at (7.78 plus or minus 0.08), (14.05 plus or minus 0.15), (20.3 plus or minus 0.2), (32.1 plus or minus 0.2), 32.1 plus or minus 0.3), 37.1 plus or minus 0.3) and 42.9 plus or minus 0.4) c/s have been observed. Also at frequencies above 45 c/s there seems to be strong indications of higher resonance modes. (Author) |
author2 |
NORWEGIAN INST OF COSMIC PHYSICS UNIV OF OSLO |
format |
Text |
author |
Egeland,Alv Larsen,Trygve Roed |
author_facet |
Egeland,Alv Larsen,Trygve Roed |
author_sort |
Egeland,Alv |
title |
MEASUREMENTS OF THE EARTH-IONOSPHERIC CAVITY RESONANCE FREQUENCIES AT HIGH LATITUDE |
title_short |
MEASUREMENTS OF THE EARTH-IONOSPHERIC CAVITY RESONANCE FREQUENCIES AT HIGH LATITUDE |
title_full |
MEASUREMENTS OF THE EARTH-IONOSPHERIC CAVITY RESONANCE FREQUENCIES AT HIGH LATITUDE |
title_fullStr |
MEASUREMENTS OF THE EARTH-IONOSPHERIC CAVITY RESONANCE FREQUENCIES AT HIGH LATITUDE |
title_full_unstemmed |
MEASUREMENTS OF THE EARTH-IONOSPHERIC CAVITY RESONANCE FREQUENCIES AT HIGH LATITUDE |
title_sort |
measurements of the earth-ionospheric cavity resonance frequencies at high latitude |
publishDate |
1966 |
url |
http://www.dtic.mil/docs/citations/AD0632299 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0632299 |
long_lat |
ENVELOPE(-26.917,-26.917,73.333,73.333) ENVELOPE(19.243,19.243,69.442,69.442) |
geographic |
Isfjord Lavangsdalen Norway |
geographic_facet |
Isfjord Lavangsdalen Norway |
genre |
Northern Norway Spitzbergen |
genre_facet |
Northern Norway Spitzbergen |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0632299 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766145533322199040 |