The Importance of Risk Factor Analysis for Romania’s National Security in the 2020 Perspective
Besides the main current challenges of the security environment generated by regional conflicts, instability or tensions, there are asymmetric threats which are already traditional, as well as new threats determined by the rapid pace of the technological advancement and by the proliferation of the new technologies. In this context, one of the few certainties in the less and less predictable present security environment is that the intelligence analysis plays an essential role in reducing the uncertainties that the Information Age has generated or amplified. The elaboration of any analysis concerning the risk factors for national security in the period 2014-2020, from the perspective of the specific scopes of interest (political-military, economic, social, environmental and technological), shall pursue to provide strategic knowledge to the decision factors. In this context, the methodology of research proposes to analyse, by the use of the scenario planning, the evolution of certain processes or phenomena at the national and regional level; to signal the appearance or amplification of negative effects or of potential risks for the security interests of the country and of its allies; to foresee the manifestation forms of the threats/risks for the national security on medium and long term; to supply useful forecasts for supporting the political, economic or social decisions. In general, the scenario planning is used for exploring the possible manifestation conditions of a situation, starting from a set of proposals/working hypotheses, each scenario representing a distinct plausible future.
Qu'est-ce que la sécurité nationale ?
La securite nationale tire sa specificite, essentiellement, de la plasticite de son contenu que refletent les definitions contrastees qui structurent son champ disciplinaire. Cet article tente de montrer que cette indecidabilite conceptuelle sous-tend nos problemes methodologiques. Il integre cette contestabilite semantique au cœur de son projet, delimite les secteurs saillants de la securite nationale et en enonce les conditionnements. Reunies, ces reflexions permettent, a travers une methode analytique, de concilier la triade, ontologie – de quoi est faite la securite nationale ? –, epistemologie – comment l’etudie-t-on ? – et politique – quelles sont les variables qui influencent sa mise en œuvre ?
Impacts of climate and land use changes on flood risk management for the Schijn River, Belgium
Abstract Flooding is the most common natural disaster in Europe. Modern flood risk management relies not only infrastructure development but also on governmental and non-governmental actors applying legal, economic and communicative water management instruments. Within the European Union (EU), flood management closely relies on policy set at the EU and national levels. It is now recognized that a sound understanding of climate change is required in addition to current management by taking into account land use change and socio-political context, as climate and land use changes have major impacts on hydrological responses. This paper investigates the hydrological behavior due to urbanization under current and future climate scenarios of high summer and high winter rainfall for 20 sub-catchments of the Schijn River, located in the Flanders region near Antwerp, Belgium. As urbanization increases and existing rainfall-runoff models neglecting the specific behavior of urban runoff, a hydrological model was developed based on a basic reservoir concept and applied to the existing rainfall-runoff model (PDM) flow to examine the specific urban contribution. Results revealed that peak flow for urban runoff and the total peak flow (i.e. rural and urban runoff) were significantly higher (i.e. ranges from 200% to 500%) than the existing rainfall-runoff model (PDM) flows, because of faster and more peaked urban runoff response. The impact of climate change on current and future conditions was also assessed by estimating peak flows with respect to return periods from the flood frequency curve. The predicted peak flow of high summer future climate scenario was significantly higher (i.e. ranges from 200% to 250%) than that of the current climatic condition for this region. Furthermore, hourly peak flow and daily volume ratios of 100-year return period for the highest, lowest and average impervious area were projected for the time horizon of the year 2100. It is concluded that climate change impacts contribute the most in producing peak flow in coming years, while increased urbanization takes the second place for both hourly and daily values. Results on urbanization effect and climate change impact assessment are useful to the water managers for spatial planning, emergency planning and insurance industry.