scholarly journals “Warm Arctic‐Cold Siberia” as an Internal Mode Instigated by North Atlantic Warming

2020 ◽  
Vol 47 (9) ◽  
Author(s):  
Chunhan Jin ◽  
Bin Wang ◽  
Young‐Min Yang ◽  
Jian Liu
Keyword(s):  
2009 ◽  
Vol 39 (1) ◽  
pp. 220-233 ◽  
Author(s):  
Leela M. Frankcombe ◽  
Henk A. Dijkstra ◽  
Anna von der Heydt

Abstract In this paper it is proposed that the stochastic excitation of a multidecadal internal ocean mode is at the origin of the multidecadal sea surface temperature variability in the North Atlantic. The excitation processes of the spatial sea surface temperature pattern associated with this multidecadal mode within an idealized three-dimensional model are studied by adding noise to the surface heat flux forcing. In the regime where the internal mode is damped, the amplitude of its sea surface temperature pattern depends on the type of noise forcing applied. While the mode is weakly excited by white noise, only the introduction of spatial and temporal coherence in the forcing, with characteristics of the North Atlantic Oscillation in particular, causes the amplitude of the variability to increase to levels comparable to those observed. Within this idealized model the physical mechanism of the excitation can be determined: the presence of the noise rectifies the background state and consequently changes the growth factor of the internal mode.


Author(s):  
Kristopher B. Karnauskas ◽  
Lei Zhang ◽  
Dillon J. Amaya

1892 ◽  
Vol 34 (872supp) ◽  
pp. 13940-13941
Author(s):  
Richard Beynon

2019 ◽  
pp. 73-81
Author(s):  
Oleh Poshedin

The purpose of the article is to describe the changes NATO undergoing in response to the challenges of our time. Today NATO, as a key element of European and Euro-Atlantic security, is adapting to changes in the modern security environment by increasing its readiness and ability to respond to any threat. Adaptation measures include the components required to ensure that the Alliance can fully address the security challenges it might face. Responsiveness NATO Response Force enhanced by developing force packages that are able to move rapidly and respond to potential challenges and threats. As part of it, was established a Very High Readiness Joint Task Force, a new Allied joint force that deploy within a few days to respond to challenges that arise, particularly at the periphery of NATO’s territory. NATO emphasizes, that cyber defence is part of NATO’s core task of collective defence. A decision as to when a cyber attack would lead to the invocation of Article 5 would be taken by the North Atlantic Council on a case-by-case basis. Cooperation with NATO already contributes to the implementation of national security and defense in state policy. At the same time, taking into account that all decision-making in NATO based on consensus, Ukraine’s membership in the Alliance quite vague perspective. In such circumstances, in Ukraine you often can hear the idea of announcement of a neutral status. It is worth reminding that non-aligned status did not save Ukraine from Russian aggression. Neutral status will not accomplish it either. All talks about neutrality and the impossibility of Ukraine joining NATO are nothing but manipulations, as well as recognition of the Ukrainian territory as Russian Federation area of influence (this country seeks to sabotage the Euro-Atlantic movement of Ukraine). Think about it, Moldova’s Neutrality is enshrined in the country’s Constitution since 1994. However, this did not help Moldova to restore its territorial integrity and to force Russia to withdraw its troops and armaments from Transnistria.


2020 ◽  
Vol 10 (2) ◽  
pp. 11-15
Author(s):  
Volodymyr Shypovskyi ◽  
Volodymyr Cherneha ◽  
Serhiy Marchenkov

Recent events in Ukraine have shown that, along with the advancement of information technology, methods of conducting modern warfare are being enhanced. Cyberspace is deliberately used by the Russian Federation to commit cyber warfare against Ukraine. Therefore, in order to address their influence effectively, it is important not only successfully deal with its consequences but also to foresee the potential adversaryʼs actions by analyzing their previous operations and incorporating the lessons learned by other countries. Across the globe, including Ukraine, the issue of information security and cyberattacks has become exceedingly urgent. Everybody is aware of the ongoing attacks on information networks of various government agencies and energy firms, cyberattacks on e-mail networks of political parties and organizations around the world. Likewise, despite the steadily growing numbers, cyberattack cases against the individuals and private businesses are not reported as widely as they occur. As a result, The North Atlantic Alliance countries began tackling the issue of cyberthreats much earlier than Ukraine. Consequently, NATO and its allies rely on powerful and robust cyber defenses to ensure the Alliance's core tasks of collective defense. The article discusses methods and strategies for providing cyber defense in NATO member states and recommends ways to increase the level of protection in the state's cyber space, as part of Ukraineʼs national security and defense domain.


Sign in / Sign up

Export Citation Format

Share Document