scholarly journals Natural Processes and Time Fluctuations in the Radiocarbon Concentration of the Atmosphere

Radiocarbon ◽  
1980 ◽  
Vol 22 (2) ◽  
pp. 236-244 ◽  
Author(s):  
V A Dergachev ◽  
G E Kocharov
Keyword(s):  
Solar Activity ◽  
Tree Rings ◽  
Geomagnetic Field ◽  
Climatic Changes ◽  
Earth’S Atmosphere ◽  
Natural Processes ◽  
Earth's Atmosphere ◽  
Astrophysical Phenomena

The concentration of radiocarbon in the earth's atmosphere is used to analyze the complex of problems associated with the study of various astrophysical, geophysical, and geochemical phenomena within the framework of the All-Union problem of Astrophysical Phenomena and Radiocarbon. Effects of the supernovae explosions, solar activity, geomagnetic field and climatic changes in the 14C level in tree-rings are considered.

scholarly journals Historical Aurora Borealis Observations in Anatolia during medieval period: Implications for the past solar activity

2019 ◽  
Author(s):  
Nafiz Maden
Keyword(s):  
Solar Activity ◽  
Middle East ◽  
Climatic Change ◽  
Geomagnetic Field ◽  
Physical Mechanism ◽  
Climatic Changes ◽  
Medieval Period ◽  
Historical Texts ◽  
Aurora Borealis ◽  
The Past

Abstract. In this paper, it is reviewed the relationships between the aurora observations, past solar activity and climatic change in Anatolia during medieval period. For this purpose, it is presented two historical aurora catalogs for Anatolia and Middle East regions at various dates in order to understand the past solar activity and possible physical mechanism using historical texts, chronicles and other auroral records. The available catalogs in literature are covered records observed in the Europe, Japan, China, Russia and Middle East. There is no study dealing only with the historical aurora observations recorded in Anatolia. The data of the catalog strongly support that there is a considerable relationship between the aurora activity and past strong solar activity. An unusually high auroral activity during the years around 1100 in Anatolia and Middle East is quite consistent with the past solar variability, geomagnetic field intensity and planetary climatic changes drastically impacting on the economy and human events.

Global circulation of the Earth’s atmosphere at altitudes from 0 to 135 Km simulated with the ARM model. Consideration of the solar activity contribution

2015 ◽  
Vol 55 (6) ◽  
pp. 780-800 ◽  
Author(s):  
A. A. Krivolutsky ◽  
L. A. Cherepanova ◽  
A. V. Dement’eva ◽  
A. I. Repnev ◽  
A. V. Klyuchnikova
Keyword(s):  
Solar Activity ◽  
Earth’S Atmosphere ◽  
Global Circulation ◽  
Earth's Atmosphere
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