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This article uses the theoretical framework of securitization in order to analyse the concurrent developments of, on the one hand, the Arab Spring and the resulting ascendance of a New Middle East and North Africa and, on the other, the discovery of natural gas resources by a number of states in the region. Furthermore, we use these developments as tests of the theory, in the process highlighting a number of criticisms that have been levelled against securitization and that are exemplified by these recent empirical events. We examine the outcomes of the Arab Spring as a process of contestation and as an avenue for the promotion of alternative discourses through the emergence of new political actors, institutions and state relations in the region. At the same time, we identify the underexploration of energy securitization in the literature and the need for a cross-sectoral approach for the referent object of energy in the widened security agenda. Ultimately, the article presents the argument that each of the two sets of developments affects the other, thereby transforming the environment within which securitization and desecuritization may result.

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This article presents a theoretical approach to energy security. It incorporates the concept of governing through turbulence as both a response to crisis onset and a source of long-term policy adaptation. The article applies this framework to an empirical analysis of the energy and climate policy of the EU through a review of policy documents in the period between 1995 and 2020. The article presents the evolution in the conceptualization of energy security in EU policy from a narrow definition restricted to characteristics of energy supply to an expanded conception that integrates additional elements from associated policy areas. The article argues that the European Green Deal represents the culmination of this process and concludes that the convergence of energy and climate policy objectives reinforces the trend towards the widened conceptual scope of energy security.

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Digital Elevation Models (DEMs) are constructed using altitude point data and various interpolation techniques. The quality and accuracy of DEMs depend on data point density and the interpolation technique used. Usually however, altitude point data especially in plain areas do not provide realistic DEMs, mainly due to errors produced as a result of the interpolation technique, resulting in imprecise topographic representation of the landscape. Such inconsistencies, which are mainly in the form of surface depressions, are especially crucial when DEMs are used as input to hydrologic modeling for impact studies, as they have a negative impact on the model's performance. This study presents a Geographical Information System (GIS) tool, named LAN (Line Attribute Network), for the improvement of DEM construction techniques and their spatial accuracy, using drainage network attributes. The developed tool does not alter the interpolation technique, but provides higher point density in areas where most DEM problems occur, such as lowland areas or places where artificial topographic features exist. Application of the LAN tool in two test sites showed that it provides considerable DEM improvement.

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