Get this from a library! Analysis of auroral observations, Halley Bay, 1960. [J R Blackie]. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following locations: nora.nerc./id/epri. external link http. Mar 11, 1961 · IN accordance with the recommendations of the Special Committee on Antarctic Research the programme of auroral observation conducted during the International Geophysical Year at Halley Bay. Get this from a library! Analysis of auroral observations, Halley Bay, 1961 and 1962,. [George Blundell]. A statistical model of auroral echo occurrence has been made from an analysis of observations at 48.5 Mc/s obtained over a number of years of continuous operation. The probability density distribution of auroral target cross sections σ has been examined experimentally, and the resulting curve fitted by simple mathematical relations.
Abstract A series of balloon flights launched from the vicinity of College, Alaska, during June and July 1960 show that auroral‐zone X rays are detectable with Geiger counters approximately 10 per cent of the time at pressure altitudes in the range 10–15 mb. adshelp[at]cfa. The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A. The aurora borealis has been a permanent feature of the night sky in the northern polar regions for many millions of years Eather 1980. Because auroral displays are usually visible in largely frozen, unpopulated regions of the Earth, however, ancient and medieval astronomers, chroniclers, philosophers and writers did not witness them frequently.
observations, well outside the more modern range of wide observational coverage see Vaquero and Vázquez, 2009; Clette et al., 2014. Therefore, in order to infer the general trend of solar activity and the occurrence of CMEs, candidate auroral records have been sought in historical documents around these events e.g., Usoskin et al., 2013. Auroral-E Observations: The First Year's Data R. B. Rose R. D. Hunsucker OTIC SEAPRE 1993 \ 93-08737 92 4 23 044. n rntp Approved for publ o release; distributlon Is unlmited. Vyr MW. analysis used simple hand-scaling techniques on these data for several reasons: 1 The data were analog. Planet. Space Sel. 1969, Vol. 17. pp. 421 to 431. Pcrinon Pier. Printed ta Nonhem Ireland QUIET HOMOGENEOUS ARCS AT HALLEY BAY 1956-1965 W. M. SIEVWRIGHT British Antarctic Survey, Department of Meteorology, University of Edinburgh, Scotland Abstractisual observations made at Halley Bay, Antarctica, in the years 1956-1965 are used to study variations in the position of quiet.
Oct 28, 2014 · The existing catalogues of East Asian auroral observations, together with new auroral observations gleaned from two additional Korean histories, namely the Seungjeongwon Ilgi and the Jeungbo Munheon Bigo, are used to investigate auroral activity in the interval 1624–1627. Strong evidence is found for recurrent auroral activity between about. Ground observations of magnetic and ionospheric substorms are reviewed, and the processes involved are explained. Then magnetic and absorption results from an auroral zone station, Halley Bay, are examined. Positive H bays occur in the evening sector between 16.00 and 22.00 local time while negative H bays occur on the nightside between 22.00 and 06.00 local time. Clockwise and. Royal Society base, Halley Bay, visual and photographic auroral observations, airglow observations, and geomag-netic observations. Published December 1960. Volume II 306 pp. with 14 half-tone plates covers radio-star scintillatio observationsn, radio-echo observa-tions of aurorae and meteors, ionospheric observations. Published December. Observations indicate that the extended auroral arc is the basic form of the discrete aurora, the brightest and most obvious kind of aurora. Both motions of auroral arcs and their distortions into convoluted forms indicate the presence of shear processes involving substantial charge excesses and magnetic field-aligned currents. Consequently, strong electric fields, both horizontal and vertical. The auroral radio echoes observed at Halley Bay are shown to fit closely the case of specular reflexion from columns of ionization alined along the local magnetic field at a height of about 100 km.
Vol 40 Analysis of Auroral Observations, Halley Bay, 47p. numerous charts, 4p. b/w Plates, 4 large fold out charts. 1960. J.R. Blackie, B.Sc. Vol 41 The Petrology of the Argentine Islands. 31p. full page maps, numerous charts – one fold-out, 3 p. b/w Plates. 1964. D.H. Elliot, B.A. Vol 42 Glaciological Observations in Trinity Peninsula and the Islands in Prince Gustav Channel, Graham Land, 1958-60.. Records from Halley Bay located about 400 km east of Ellsworth with a slightly lower magnetic latitude for the regular world days of 19 and 20 April 1958 were available for analysis. On these two days the troughs were detected at this station, the onset times being approximately the same in universal time as those for Ellsworth.
Jan 16, 2015 · The Auroral Planetary Imaging and Spectroscopy APIS service, accessible online, provides an open and interactive access to processed auroral observations of the outer planets and their satellites. Such observations are of interest for a wide community at the interface between planetology and magnetospheric and heliospheric physics. APIS consists of i a high level database,. The Royal Society's Expedition to Halley Bay has provided an opportunity for a simultaneous study of the aurora australis and borealis by the radio-echo technique, and a preliminary account of the.
This paper is based on preliminary analysis of Explorer VI data. and J. R. Winckler, “Observations of the Van Allen radiation regions during August and September 1959: 1”, Journal of Geophysical Research, 10.1029/JZ065i010p03487, 65,. Auroral Observations at Halley Bay, Antarctica, during 1959, Nature, 10.1038/189826a0. Blackie, J.R. 1964 Analysis of auroral observations, Halley Bay, 1960. London, British Antarctic Survey, 47pp. British Antarctic Survey Scientific Reports, 40.
Simultaneous auroral observations described in the historical records of China, Japan and Korea from ancient times to AD 1700 D. M. Willis1, F. R. Stephenson2 1 Space and Astrophysics Group, Department of Physics, University of Warwick, Coventry CV4 7AL, UK 2 Department of Physics, University of Durham, Durham DH1 3LE, UK Received: 21 May 1999 / Revised: 20 August 1999 /Accepted: 26 August 1999. By J. Providakes, D. T. Farley, Bela G. Fejer, et al., Published on 01/01/88. Title. Observations of auroral E region plasma waves and electron heating with EISCAT and a VHF radar interferometer.
Investigation of the relationship between optical auroral forms and HF radar E region backscatter S. E. Milan1, M. Lester1, N. Sato2, H. Takizawa3, J.-P. Villain4 1 Department of Physics and Astronomy, Leicester University, Leicester LE1 7RH, UK 2 National Institute of Polar Research, Tokyo 173, Japan 3 Tohoku University, Sendai 980-8578, Japan 4 Centre National de la Recherche Scientiﬁque. Halley Bay Halley Bay Station Halley Station Brunt Ice Shelf Caird Coast, Shackleton Range Shackleton Range area, South Georgia, Theron Mountains Coats Land, Stanley Falkland Islands.
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