Life Cycle of a Military Product

Abstract Romania’s membership of the select group of states belonging to the North Atlantic Treaty Organization brings, in addition to the expected security benefits and assurances and commitments and obligations that we have to assume. The participation of politicians, militaries and Romanian experts in the decision-making within the specialized committees of the NATO structures is an extremely important element for the assertion of Romania as a security guarantor in the area, a hypostasis that was only a vision a few years ago. This role of our country must be supported by strong and powerful military capabilities, capabilities that are hard to reach for many of the countries in Eastern Europe. The economically advantageous and technologically viable solution for a period of time is to acquire advanced military technical systems that are equipped with the great economic powers of NATO, systems used and verified by these armies, revitalized and upgraded, a second life goal.

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Role of the position of the North Atlantic jet in the variability and odds of extreme PM10 in Europe

Atmospheric Environment ◽

10.1016/j.atmosenv.2019.04.045 ◽

2019 ◽

Vol 210 ◽

pp. 35-46 ◽

Cited By ~ 2

Author(s):

Carlos Ordóñez ◽

David Barriopedro ◽

Ricardo García-Herrera

Keyword(s):

North Atlantic ◽

The North ◽

The North Atlantic ◽

North Atlantic Jet

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On the Role of Atmospheric Teleconnections in Climate

Journal of Climate ◽

10.1175/2007jcli1907.1 ◽

2008 ◽

Vol 21 (12) ◽

pp. 2990-3001 ◽

Cited By ~ 82

Author(s):

Anastasios A. Tsonis ◽

Kyle L. Swanson ◽

Geli Wang

Keyword(s):

Northern Hemisphere ◽

North Atlantic ◽

Recent Application ◽

The North ◽

The Pacific ◽

Atmospheric Teleconnections ◽

The North Atlantic ◽

The North Atlantic Oscillation ◽

The Tropics

Abstract In a recent application of networks to 500-hPa data, it was found that supernodes in the network correspond to major teleconnection. More specifically, in the Northern Hemisphere a set of supernodes coincides with the North Atlantic Oscillation (NAO) and another set is located in the area where the Pacific–North American (PNA) and the tropical Northern Hemisphere (TNH) patterns are found. It was subsequently suggested that the presence of atmospheric teleconnections make climate more stable and more efficient in transferring information. Here this hypothesis is tested by examining the topology of the complete network as well as of the networks without teleconnections. It is found that indeed without teleconnections the network becomes less stable and less efficient in transferring information. It was also found that the pattern chiefly responsible for this mechanism in the extratropics is the NAO. The other patterns are simply a linear response of the activity in the tropics and their role in this mechanism is inconsequential.

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Role of wind stress and heat fluxes in interannual-to-decadal variability of air-sea CO2and O2fluxes in the North Atlantic

Geophysical Research Letters ◽

10.1029/2006gl026538 ◽

2006 ◽

Vol 33 (21) ◽

Cited By ~ 6

Author(s):

T. Friedrich ◽

A. Oschlies ◽

C. Eden

Keyword(s):

Wind Stress ◽

North Atlantic ◽

Decadal Variability ◽

Heat Fluxes ◽

The North ◽

The North Atlantic

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Modeling the nutrient and carbon cycles of the North Atlantic: 2. New production, particle fluxes, CO2gas exchange, and the role of organic nutrients

Journal of Geophysical Research Atmospheres ◽

10.1029/jc094ic09p12781 ◽

1989 ◽

Vol 94 (C9) ◽

pp. 12781 ◽

Cited By ~ 23

Author(s):

Reiner Schlitzer

Keyword(s):

North Atlantic ◽

New Production ◽

Carbon Cycles ◽

The North ◽

The North Atlantic ◽

Organic Nutrients ◽

Particle Fluxes

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The Role of Extratropical Air–Sea Interaction in the Autumn Subseasonal Variability of the North Atlantic Oscillation

Journal of Climate ◽

10.1175/jcli-d-19-0060.1 ◽

2019 ◽

Vol 32 (22) ◽

pp. 7697-7712 ◽

Cited By ~ 5

Author(s):

Yu Nie ◽

Hong-Li Ren ◽

Yang Zhang

Keyword(s):

North Atlantic Oscillation ◽

North Atlantic ◽

Gulf Stream ◽

Low Frequency ◽

Mean Flow ◽

The North ◽

Subseasonal Variability ◽

The North Atlantic ◽

The North Atlantic Oscillation

Abstract Considerable progress has been made in understanding the internal eddy–mean flow feedback in the subseasonal variability of the North Atlantic Oscillation (NAO) during winter. Using daily atmospheric and oceanic reanalysis data, this study highlights the role of extratropical air–sea interaction in the NAO variability during autumn when the daily sea surface temperature (SST) variability is more active and eddy–mean flow interactions are still relevant. Our analysis shows that a horseshoe-like SST tripolar pattern in the North Atlantic Ocean, marked by a cold anomaly in the Gulf Stream and two warm anomalies to the south of the Gulf Stream and off the western coast of northern Europe, can induce a quasi-barotropic NAO-like atmospheric response through eddy-mediated processes. An initial southwest–northeast tripolar geopotential anomaly in the North Atlantic forces this horseshoe-like SST anomaly tripole. Then the SST anomalies, through surface heat flux exchange, alter the spatial patterns of the lower-tropospheric temperature and thus baroclinicity anomalies, which are manifested as the midlatitude baroclinicity shifted poleward and reduced baroclinicity poleward of 70°N. In response to such changes of the lower-level baroclinicity, anomalous synoptic eddy generation, eddy kinetic energy, and eddy momentum forcing in the midlatitudes all shift poleward. Meanwhile, the 10–30-day low-frequency anticyclonic wave activities in the high latitudes decrease significantly. We illustrate that both the latitudinal displacement of midlatitude synoptic eddy activities and intensity variation of high-latitude low-frequency wave activities contribute to inducing the NAO-like anomalies.

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Potential Predictability of the Silk Road Pattern and the Role of SST as Inferred from Seasonal Hindcast Experiments of a Coupled Climate Model

Journal of Climate ◽

10.1175/jcli-d-20-0235.1 ◽

2020 ◽

Vol 33 (22) ◽

pp. 9567-9580

Author(s):

Ronald Kwan Kit Li ◽

Chi Yung Tam ◽

Ngar Cheung Lau ◽

Soo Jin Sohn ◽

Joong Bae Ahn

Keyword(s):

North Atlantic ◽

Silk Road ◽

Potential Predictability ◽

The North ◽

Silk Road Pattern ◽

The North Atlantic ◽

Upper Level ◽

The Silk Road ◽

Wind Bias

AbstractThe Silk Road pattern (SR) is a leading mode of atmospheric circulation over midlatitude Eurasia in boreal summer. Its temporal phase is known to be unpredictable in many models. Previous studies have not reached a clear consensus on the role of sea surface temperature (SST) associated with SR. By comparing seasonal hindcasts from the Pusan National University (PNU) coupled general circulation model with reanalysis, we investigate if there are any sources of predictability originating from the SST. It was found that the PNU model cannot predict SR temporally. In fact, SR is associated with El Niño–Southern Oscillation (ENSO) in the model hindcasts, in contrast to reanalysis results in which SR is more associated with North Atlantic SST anomalies. The PNU system, however, shows potential predictability in SR associated with tropical Pacific SST. Bias in stationary Rossby waveguides is proposed as an explanation for the SR–ENSO relationship in hindcast runs. Model upper-level wind bias in the North Atlantic results in a less continuous waveguide connecting the North Atlantic to Asia, and may hinder wave propagations induced by North Atlantic SST to trigger SR. On the other hand, model upper-level wind bias in the subtropical western Pacific may favor westward propagation of zonally elongated waves from the ENSO region to trigger SR. This study implies that the role of SST with regard to SR can be substantially changed depending on the fidelity of model upper-level background winds.

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