Ionization effect of solar protons in the Earth atmosphere – Case study of the 20 January 2005 SEP event

2011 ◽  
Vol 48 (7) ◽  
pp. 1232-1237 ◽  
Author(s):  
A.L. Mishev ◽  
P.I.Y. Velinov ◽  
L. Mateev ◽  
Y. Tassev
2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Alexander Mishev

The galactic cosmic rays are the main source of ionization in the troposphere of the Earth. Solar energetic particles of MeV energies cause an excess of ionization in the atmosphere, specifically over polar caps. The ionization effect during the major ground level enhancement 69 on January 20, 2005 is studied at various time scales. The estimation of ion rate is based on a recent numerical model for cosmic-ray-induced ionization. The ionization effect in the Earth atmosphere is obtained on the basis of solar proton energy spectra, reconstructed from GOES 11 measurements and subsequent full Monte Carlo simulation of cosmic-ray-induced atmospheric cascade. The evolution of atmospheric cascade is performed with CORSIKA 6.990 code using FLUKA 2011 and QGSJET II hadron interaction models. The atmospheric ion rate is explicitly obtained for various latitudes, namely, 40°N, 60°N and 80°N. The time evolution of obtained ion rates is presented. The short- and medium-term ionization effect is compared with the average effect due to galactic cosmic rays. It is demonstrated that ionization effect is significant only in subpolar and polar atmosphere during the major ground level enhancement of January 20, 2005. It is negative in troposphere at midlatitude, because of the accompanying Forbush effect.


Author(s):  
Jenny Wallensten
Keyword(s):  

Karpophoros, fruit-bearing, is an epithet easily considered as “literary”, i.e., a poetic name with little or no relation to cult. The epigraphic sources, however, clearly show us that gods thus named were offered divine worship. The epithet is found in connection with several deities. Goddesses of agriculture, such as Demeter, and Ge, the Earth, naturally carry this name, but so do Zeus, Dionysos and a goddess known as “The Aiolian”, who was sometimes associated with Agrippina. This paper surveys deities known as karpophoroi and examines what their cult entailed. Its focus is, however, on a brief Acropolis inscription, IG II2 4758, where Ge is honoured as Karpophoros, in accordance with an oracle. The case study provides insights into the Attic cult of Ge, the epithet Karpophoros, as well as the use and function of epithets within Greek dedicatory language.


2021 ◽  
pp. 074171362110053
Author(s):  
Tracey Ollis

This case study research examines informal adult learning in the Lock the Gate Alliance, a campaign against mining for coal seam gas in Central Gippsland, Australia. In the field of the campaign, circumstantial activists learn to think critically about the environment, they learn informally and incidentally, through socialization with experienced activists from and through nonformal workshops provided by the Environmental Nongovernment Organization Friends of the Earth. This article uses Bourdieu’s “theory of practice,” to explore the mobilization of activists within the Lock the Gate Alliance field and the practices which generate knowledge and facilitate adult learning. These practices have enabled a diverse movement to educate the public and citizenry about the serious threat fracking poses to the environment, to their land and water supply. The movements successful practices have won a landmark moratorium on fracking for coal seam gas in the State of Victoria.


Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 479
Author(s):  
Irina Sokolik

This Special Issue aims at addressing the recent developments towards improving our understanding of the diverse radiative impact of different types of aerosols and clouds [...]


Geoheritage ◽  
2021 ◽  
Vol 13 (2) ◽  
Author(s):  
M. Pásková ◽  
J. Zelenka ◽  
T. Ogasawara ◽  
B. Zavala ◽  
I. Astete

AbstractHolistic interpretation of Earth heritage is one of the most important tasks of UNESCO Global geoparks. The ABC (abiotic, biotic, and cultural interconnections) concept is a potential interpretive approach used in Earth heritage popularization through geotourism. Apart of the deeper understanding of this concept, this study explores the application of this concept in selected geoparks. The Colca and Volcanoes Andagua UNESCO Global Geopark (Peru) and Muroto UNESCO Global Geopark (Japan) served as a case study in the frame of this qualitative research conducted during the summer 2019. Results show that the ABC approach is nearly perfectly understood by both geoparks, however there are both internal and external factors which influence the extent and form of how this concept is applied in practice. Except for specific geographical settings, different stages of geopark product development, and different managerial approaches, they mainly include the level of scientific knowledge and general education in the given geopark, as well as level of knowledge management and networking with another UNESCO global geoparks. The more experienced Muroto Geopark interpretation exhibits a comparatively higher level of visible ABC application, while the Colca and Volcanoes Andagua Geopark can benefit in the future from the natural inclination and ability of the local people to integrate the cultural aspects into their Earth heritage interpretation.


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