POLAR-CAP ABSORPTION FOLLOWING THE SOLAR FLARE OF JULY 16, 1959

1961 ◽  
Vol 39 (12) ◽  
pp. 1882-1887
Author(s):  
Syed Ziauddin
Keyword(s):  
Solar Flare ◽  
Geomagnetic Field ◽  
Noise Level ◽  
Polar Cap ◽  
Short Term ◽  
Magnetic Screening ◽  
Cosmic Noise ◽  
Absorption Event

The polar-cap absorption event following the solar flare of July 16, 1959, is examined. Short-term recoveries of the cosmic noise level, associated with auroral disturbances, were observed at Saskatoon and Ottawa during the PCA event. It is suggested that these recoveries were due to a magnetic screening mechanism resulting from the interaction of the aurora producing plasma with the geomagnetic field.

Short-Term Solar Flare Prediction Using Predictor Teams

Solar Physics ◽  
2010 ◽  
Vol 263 (1-2) ◽  
pp. 175-184 ◽  
Author(s):  
Xin Huang ◽  
Daren Yu ◽  
Qinghua Hu ◽  
Huaning Wang ◽  
Yanmei Cui
Keyword(s):  
Solar Flare ◽  
Short Term

scholarly journals Modeling and Predicting the Short-Term Evolution of the Geomagnetic Field

2018 ◽  
Vol 123 (6) ◽  
pp. 4539-4560 ◽  
Author(s):  
Julien Bärenzung ◽  
Matthias Holschneider ◽  
Johannes Wicht ◽  
Sabrina Sanchez ◽  
Vincent Lesur
Keyword(s):  
Geomagnetic Field ◽  
Short Term ◽  
Term Evolution

scholarly journals Possible influence of variations in the geomagnetic field on migration paths of snow buntings

2019 ◽  
Vol 19 (2) ◽  
pp. 195-201
Author(s):  
Chris M. Hall ◽  
Magnar G. Johnsen
Keyword(s):  
Magnetic Field ◽  
Geomagnetic Field ◽  
Flight Time ◽  
Short Term ◽  
Breeding Grounds ◽  
Declining Populations ◽  
Plectrophenax Nivalis ◽  
The Individual ◽  
Magnetic North ◽  
The Magnetic Field

AbstractA hypothesis is proposed wherein changes in the Earth's magnetic field affect the migratory paths of snow buntings (Plectrophenax nivalis), and in particular from wintering grounds in the Russian/Ukrainian steppes to breeding grounds on Svalbard and with a typical stopover in Finnmark in northern Norway. If one were to assume ignorance of the secular movement of the magnetic north pole approximately 1500 km northwards between 1908 and 2020, the magnetoreceptor contribution to snow buntings' navigation would result in winter-to-summer migratory paths progressively further to the East. In turn, this could be a contributing factor to declining populations in Finnmark and favouring a more frequent flightpath over the Kola Peninsula. On the other hand, short-term perturbations in the magnetic field (i.e. induced by solar activity) and therefore existing for a relatively small proportion of the flight time (if at all) for the individual migrations legs seem unlikely to influence the stopover locations significantly. Even so, these space-weather induced variations cannot be disregarded, particularly for success in reaching Svalbard.

A Relation Between Solar Radio Emission and Polar Cap Absorption of Cosmic Noise

Nature ◽  
1960 ◽  
Vol 186 (4725) ◽  
pp. 610-613 ◽  
Author(s):  
M. R. KUNDU ◽  
F. T. HADDOCK
Keyword(s):  
Radio Emission ◽  
Solar Radio ◽  
Solar Radio Emission ◽  
Polar Cap ◽  
Cosmic Noise

SHORT-TERM SOLAR FLARE LEVEL PREDICTION USING A BAYESIAN NETWORK APPROACH

2010 ◽  
Vol 710 (1) ◽  
pp. 869-877 ◽  
Author(s):  
Daren Yu ◽  
Xin Huang ◽  
Huaning Wang ◽  
Yanmei Cui ◽  
Qinghua Hu ◽  
...  
Keyword(s):  
Solar Flare ◽  
Bayesian Network ◽  
Network Approach ◽  
Short Term
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