scholarly journals Cataclysmic Geomagnetic Field Collapse: Global Security Concerns

2020 ◽  
pp. 61-79
Author(s):  
J. Marvin Herndon
Keyword(s):  
National Security ◽  
Present State ◽  
Geomagnetic Field ◽  
Historical Development ◽  
Global Security ◽  
Funding Agencies ◽  
Geomagnetic Pole ◽  
Polarity Reversals ◽  
Security Concerns ◽  
Geomagnetic Polarity

In 2015, Tyler J. Williams authored “Cataclysmic Polarity Shift: Is U. S. National Security Prepared for the Next Geomagnetic Pole Reversal?” That document provides an extremely cogent and thorough description of some of the risks to national security and infrastructure expected to result from a geomagnetic polarity reversal. However, it describes geomagnetic field generation solely as currently promoted by the geophysics community which is based upon old ideas, circa 1940s-1960s, that are taken to be factual without any attempt to understand their limitations or to evaluate their validity in light of subsequent scientific developments. Moreover, the security concerns Williams described are relevant to humanity globally. Here I have reviewed the historical development of those old ideas, pointed out their problematic nature, and reviewed subsequent published advances that overcome their inherent problems and lead to a better understanding of the geophysics related to geomagnetic polarity reversals, geomagnetic excursions, and, at some yet unknown time, the permanent demise of the geomagnetic field. Mechanisms of rapid geomagnetic field collapse, both natural and potentially human-induced, are described. The present state of nuclear georeactor activity, whether geomagnetic field collapse leads to increased georeactor output, and whether it is likely to trigger earthquakes and volcano eruptions are yet unknown matters of seriously troubling human security concerns. Global security preparedness, even though addressed by sovereign nations, should be predicated upon the latest and most correct scientific understanding. In some areas that may be the case, but in the scientific areas described here there are clearly problems. The inherent problems, I submit, do not result from inadequate funding, but from inadequate methodologies, expectations and responsibilities of scientists, their national and parent institutions, publishers, and respective funding-agencies.

A record of the lower Mammoth geomagnetic polarity reversal from a marine succession in the Boso Peninsula, central Japan

2021 ◽  
Author(s):  
Yuki Haneda ◽  
Makoto Okada
Keyword(s):  
Geomagnetic Field ◽  
Central Japan ◽  
High Accumulation ◽  
Significant Information ◽  
Boso Peninsula ◽  
Northern Latitudes ◽  
Lava Sequence ◽  
Directional Change ◽  
Polarity Reversals ◽  
Geomagnetic Polarity

Summary Palaeomagnetic records from geological archives provide significant information about the nature of geomagnetic polarity reversals; however, there are few detailed palaeomagnetic records of pre-Pleistocene reversals. The lower Mammoth Subchron boundary (late Pliocene) is recorded in a 10-m interval of a marine succession deposited at high accumulation rates (9–66 cm/kyr) in the Boso Peninsula, central Japan. Here, we report a continuous palaeomagnetic record of the lower, normal to reverse boundary interval of the Mammoth Subchron, including the geomagnetic field direction and relative palaeointensity, with an average temporal resolution of ca 800 years. A hybrid method of thermal demagnetization at 200° C and progressive alternating field demagnetization were used to effectively extract the primary palaeomagnetic component, which is carried by magnetite. The lower Mammoth transition is characterized by palaeomagnetic direction of instability and decay of the relative palaeointensity, and occurred from late Marine Isotope Stage MG3 (3351 ka) to MG2 (3336 ka) or MG1 (3331 ka), spanning 15–20 kyr. Virtual geomagnetic poles (VGPs), calculated from primary palaeomagnetic directions, rapidly rebounded twice from southern latitudes to northern latitudes within the transition. In contrast to the complex lower Mammoth reversal behavior recorded in the Boso Peninsula succession, records from a lava sequence in O'ahu (Hawai'i) reveal a rebound following a 180° directional change, and those from a marl succession in Sicily (Italy) indicate a single rapid directional change. Diverse geomagnetic field evolution among these three sections is reflected resolution difference among the records likely in combination with an influence of non-axial dipole field.

National Security and U.S. Immigration Policy, 1776–1790

2008 ◽  
Vol 39 (1) ◽  
pp. 37-64 ◽  
Author(s):  
Robbie Totten
Keyword(s):  
Great Britain ◽  
International Relations ◽  
National Security ◽  
Immigration Policy ◽  
Early Republic ◽  
Security Concerns ◽  
New Nation ◽  
The Military

An examination of U.S. immigration policy during the early Republic from a security perspective—a common analytical focus within the field of international relations—reveals the inadequacy of traditional economic and ideological interpretations. Security concerns, based on actual threats from Great Britain and Spain, permeated the arguments both for and against immigration. Those in favor of immigration hoped to strengthen the nation, primarily by providing soldiers and money for the military; those opposed to immigration feared that it would compromise national security by causing domestic unrest and exposing the new nation to espionage and terrorism. These issues are not unlike those that beset contemporary policymakers.

scholarly journals Reversals in the large-scale αΩ-dynamo with memory

2015 ◽  
Vol 22 (4) ◽  
pp. 361-369 ◽  
Author(s):  
L. K. Feschenko ◽  
G. M. Vodinchar
Keyword(s):  
Magnetic Field ◽  
Power Law ◽  
Geomagnetic Field ◽  
Large Scale ◽  
Magnetic Polarity ◽  
Power Law Model ◽  
The Real ◽  
Geomagnetic Polarity ◽  
With Memory ◽  
The Magnetic Field

Abstract. Inversion of the magnetic field in a model of large-scale αΩ-dynamo with α-effect with stochastic memory is under investigation. The model allows us to reproduce the main features of the geomagnetic field reversals. It was established that the polarity intervals in the model are distributed according to the power law. Model magnetic polarity timescale is fractal. Its dimension is consistent with the dimension of the real geomagnetic polarity timescale.

scholarly journals Recognizing and Confronting State Subjectivity in Asylum Adjudications

Refuge ◽  
2015 ◽  
Vol 31 (2) ◽  
pp. 3-13
Author(s):  
Emily C. Barry-Murphy ◽  
Max Stephenson Jr.
Keyword(s):  
United States ◽  
National Security ◽  
Moral Imagination ◽  
The United States ◽  
External Threats ◽  
United States Population ◽  
Potential Efficacy ◽  
Security Concerns ◽  
Nuanced Understanding

United States law charges America’s asylum officers with providing humanitarian protection for refugees while simultaneously securing the nation from external threats. This mandate requires that asylum officers balance potentially conflicting claims as they seek to ensure just treatment of claimants. This article explores how officers charged with that responsibility can develop a regime-centred subjectivity that often conditions them to view applicants with fraud and security concerns foremost in mind. This analysis also examines the potential efficacy of practical strategies linked to aesthetic, cognitive, affective, and moral imagination that may allow officials to become more aware of their statecentred subjectivity and how it influences their perceptions of threats to national security and to fraud. This analysis encourages adjudication officers to strive for a more nuanced understanding of what constitutes fraud and national security concerns and what are instead presuppositions created by the United States population-protection agenda.

Paleomagnetism of the Great Slave Supergroup, Northwest Territories, Canada: the Stark Formation

1976 ◽  
Vol 13 (4) ◽  
pp. 563-578 ◽  
Author(s):  
D. K. Bingham ◽  
M. E. Evans
Keyword(s):  
Northwest Territories ◽  
North American ◽  
Geomagnetic Field ◽  
Pole Position ◽  
The West ◽  
Stratigraphic Sequence ◽  
Polar Wander ◽  
Early Proterozoic ◽  
The North ◽  
Polarity Reversals

Paleomagnetic results from 55 sampling sites throughout the Stark Formation are reported. The known stratigraphic sequence of these sites enables the behaviour of the geomagnetic field in these remote times (1750 m.y.) to be elucidated. Two polarity reversals are identified and these represent potentially useful correlative features in strata devoid of index fossils. One of these is investigated in detail and indicates that behaviour of the geomagnetic field during polarity reversals was essentially the same in the early Proterozoic as it has been over the last few million years. The pole position (145°W, 15°S, dp = 3.5, dm = 6.9) lies far to the west of that anticipated from earlier results, implying further complexity of the North American polar wander curve. Possible alternatives to this added complexity are discussed.

THE IMPACT OF GLOBAL SECURITY ASSURANCE ON THE SOCIO-POLITICAL MODERNIZATION OF THE REPUBLIC OF MOLDOVA

Moldoscopie ◽  
2021 ◽  
pp. 54-59
Author(s):  
Serghei Sprincean ◽  
◽  
Ghenadie Mitrofanov ◽  
Keyword(s):  
National Security ◽  
Banking System ◽  
Humanitarian Law ◽  
Global Security ◽  
Republic Of Moldova ◽  
Military Presence ◽  
Political Modernization ◽  
Global Nature ◽  
The Republic ◽  
The Impact

Global security, as a concept, has developed on the basis of international legislation on the national security of states, but also on international humanitarian law, which focus on the protection of global harmony and sustainable development. The national and international political system, in the phase of overcoming crises, in correlation with the challenges and threats to global security, acquires new valences and functions, given that international bodies, supported by national state structures, are forced to face the intensification of evolution. alignment of the world balance. As current threats of a global nature, but manifested locally and in connection with the national security of the Republic of Moldova were identified as: poverty, economic underdevelopment and energy dependence, transnistrian conflict, tensions in the area and foreign military presence, external coercion, the criminogenic factor, corruption, the demographic problem and the exacerbation of the migration phenomenon, population health, natural disasters, environmental pollution, technogenic accidents, information insecurity, instability of the financial-banking system.

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