scholarly journals Assessment and mapping of snow avalanche risk in Russia

2008 ◽  
Vol 49 ◽  
pp. 205-209 ◽  
Author(s):  
Yuri Seliverstov ◽  
Tatiana Glazovskaya ◽  
Alexander Shnyparkov ◽  
Yana Vilchek ◽  
Ksenia Sergeeva ◽  
...  

AbstractThe term ‘risk’ can be defined as the probability of unfavourable consequences or negative effects. Risk can be expressed by means of various indices, such as collective or social risk (possible number of dead), individual risk (probability of a person’s death within a certain territory during 1 year), probability of losses, etc. This paper is a case study of the small-scale assessment and mapping of individual avalanche risk focused on the two regions of Russia with the highest levels of avalanche activity: the northern Caucasus and the mountainous parts of Sakhalin island. The basic indices applied for individual avalanche risk estimation are: recurrence interval of avalanches (avalanche frequency), percentage of the whole investigated territory that is occupied by avalanche-prone areas, duration of avalanche danger period, probability of a person’s stay in an avalanche-prone area during 1 day (24 hours) and during 1 year, total population of the area and its density. The results of individual avalanche risk assessment, undertaken for the territory of Russia as a whole, show that its values generally do not exceed the admissible level (from 1×10–6 to 1×10–4). However, some areas of the northern Caucasus, including famous alpine skiing resorts (Krasnaya Poliana, Dombai, the Mount Elbrus region, etc.), and of Sakhalin, including the environs of towns (Kholmsk, Nevel’sk) and other smaller human settlements, are characterized by an unacceptable level of risk. In the aggregate, areas with an unacceptable (>1×10–4) level of individual avalanche risk comprise about 7% of the whole avalanche-prone territory of the northern Caucasus, those with an admissible level comprise 52% and those with an acceptable level (<1×10–6) 41%. The corresponding values for Sakhalin are 0.1%, 14.8% and 85.1%.

2016 ◽  
Author(s):  
A. Y. Komarov ◽  
Y. G. Seliverstov ◽  
T. G. Glazovskaya ◽  
A. S. Turchaninova

Abstract. Avalanche pose a significant problem in most mountain regions of Russia. The constant growth of economic activity in highlands and the increased avalanche hazard lead to the demand to develop the methods of large-scale avalanche hazard assessment. This is needed for the determination of appropriate avalanche protection and life safety measures in avalanche-prone areas, as well as for economical reasons. The data obtained from large-scale avalanche risk assessments using our method should be valuable for various economical estimations of developing mountain regions in Russia The actuality of natural hazard risk estimations is also determined by the Federal Law of Russian Federation. According to the National Standards, such estimations should take place during the engineering surveys of the object. However, the required standard algorithm and formulas for such assessments do not exist (and cant be found) in official documentation. According this problem, our main purpose was to develop the large-scale risk assessment method and to approbate it on the developing but poorly researched ski resort areas. This method includes the formulas to calculate collective and individual avalanche risk. The results of risk analysis are shown in quantitative data that can be used to determine levels of avalanche risk (appropriate, acceptable and inappropriate) and to suggest methods to decrease the individual risk to acceptable level or better. It makes possible to compare risk quantitative data obtained from different regions, analyze it and evaluate the economical feasibility of protection measures.


2018 ◽  
Vol 1 (2) ◽  
pp. 60-72
Author(s):  
Mansour Safran

This aims to review and analyze the Jordanian experiment in the developmental regional planning field within the decentralized managerial methods, which is considered one of the primary basic provisions for applying and success of this kind of planning. The study shoed that Jordan has passed important steps in the way for implanting the decentralized administration, but these steps are still not enough to established the effective and active regional planning. The study reveled that there are many problems facing the decentralized regional planning in Jordan, despite of the clear goals that this planning is trying to achieve. These problems have resulted from the existing relationship between the decentralized administration process’ dimensions from one side, and between its levels which ranged from weak to medium decentralization from the other side, In spite of the official trends aiming at applying more of the decentralized administrative policies, still high portion of these procedures are theoretical, did not yet find a way to reality. Because any progress or success at the level of applying the decentralized administrative policies doubtless means greater effectiveness and influence on the development regional planning in life of the residents in the kingdom’s different regions. So, it is important to go a head in applying more steps and decentralized administrative procedures, gradually and continuously to guarantee the control over any negative effects that might result from Appling this kind of systems.   © 2018 JASET, International Scholars and Researchers Association


2008 ◽  
Vol 59 (10) ◽  
Author(s):  
Delia Perju ◽  
Harieta Pirlea ◽  
Gabriela-Alina Brusturean ◽  
Dana Silaghi-Perju ◽  
Sorin Marinescu

The European laws and recently the Romanian ones impose more and more strict norms to the large nitrogen dioxide polluters. They are obligated to continuously improve the installations and products so that they limit and reduce the nitrogen dioxide pollution, because it has negative effects on the human health and environment. In this paper are presented these researches made within a case study for the Timi�oara municipality, regarding the modeling and simulation of the nitrogen dioxide dispersion phenomenon coming from various sources in atmosphere with the help of analytical-experimental methods. The mathematical model resulting from these researches is accurately enough to describe the real situation. This was confirmed by comparing the results obtained based on the model with real experimental values.


Author(s):  
Fabiana Espíndola Ferrer

This chapter is an ethnographic case study of the social integration trajectories of youth living in two stigmatized and poor neighborhoods in Montevideo. It explains the linkages between residential segregation and social inclusion and exclusion patterns in unequal urban neighborhoods. Most empirical neighborhood research on the effects of residential segregation in contexts of high poverty and extreme stigmatization have focused on its negative effects. However, the real mechanisms and mediations influencing the so-called neighborhood effects of residential segregation are still not well understood. Scholars have yet to isolate specific neighborhood effects and their contribution to processes of social inclusion and exclusion. Focusing on the biographical experiences of youth in marginalized neighborhoods, this ethnography demonstrates the relevance of social mediations that modulate both positive and negative residential segregation effects.


Forests ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 7
Author(s):  
Andreja Đuka ◽  
Zoran Bumber ◽  
Tomislav Poršinsky ◽  
Ivica Papa ◽  
Tibor Pentek

During the seven-year research period, the average annual removal was by 3274 m3 higher than the average annual removal prescribed by the existing management plan (MP). The main reason lies in the high amount of salvage felling volume at 55,238 m3 (38.3%) in both the main and the intermediate felling due to oak dieback. The analysis of forest accessibility took into account the spatial distribution of cutblocks (with ongoing felling operations) and the volume of felled timber for two proposed factors: (1) the position of the cutblock and (2) the position of the removal. Cutblock position factor took into account the spatial position of the felling areas/sites, while removal position factor besides the spatial reference took into account the amount of felled timber (i.e., volume) both concerning forest infrastructure network and forest operations. The analysed relative forest openness by using geo-processing workflows in GIS environment showed four types of opening areas in the studied management unit (MU): single-opened, multiple-opened, unopened and opened areas outside of the management unit. Negative effects of the piece-volume law and low harvesting densities on forest operations are highlighted in this research due to high amount of salvage felling particularly in the intermediate felling by replacing timber volume that should have come from thinnings.


2021 ◽  
pp. 136700692110231
Author(s):  
Francesca Romana Moro

Aims and Objectives/Purpose/Research Questions: The Alorese in eastern Indonesia are an Austronesian community who have inhabited two Papuan-speaking islands for approximately 600 years. Their language presents a paradox: contact with the neighbouring Papuan languages has led to both complexification and simplification. This article argues that these opposite outcomes of contact result from two distinct scenarios, and formulates a hypothesis about a shift in multilingual patterns in Alorese history. Design/Methodology/Approach: To formulate a hypothesis about the discontinuity of multilingual patterns, this article first sketches the past and present multilingual patterns of the Alorese by modelling language contact outcomes in terms of bilingual optimisation strategies. This is followed by a comparison of the two scenarios to pinpoint similarities and differences. Data and Analysis: Previous research shows that two types of contact phenomena are attested in Alorese: (a) complexification arising from grammatical borrowings from Papuan languages, and (b) morphological simplification. The first change is associated with prolonged child bilingualism and is the result of Papuan-oriented bilingual strategies, while the latter change is associated with adult second language (L2) learning and is the result of universal communicative strategies. Findings/Conclusions Complexification and simplification are the results of two different layers of contact. Alorese was first used in small-scale bilingual communities, with widespread symmetric multilingualism. Later, multilingualism became more asymmetric, and the language started to undergo a simplification process due to the considerable number of L2 speakers. Originality: This article is innovative in providing a clear case study showing discontinuity of multilingual patterns, supported by linguistic and non-linguistic evidence. Significance/Implications: This article provides a plausible explanation for the apparent paradox found in Alorese, by showing that different outcomes of contact in the same language are due to different patterns of acquisition and socialisation. This discontinuity should be taken into account by models of language contact.


Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1862
Author(s):  
Alexandros-Georgios Chronis ◽  
Foivos Palaiogiannis ◽  
Iasonas Kouveliotis-Lysikatos ◽  
Panos Kotsampopoulos ◽  
Nikos Hatziargyriou

In this paper, we investigate the economic benefits of an energy community investing in small-scale photovoltaics (PVs) when local energy trading is operated amongst the community members. The motivation stems from the open research question on whether a community-operated local energy market can enhance the investment feasibility of behind-the-meter small-scale PVs installed by energy community members. Firstly, a review of the models, mechanisms and concepts required for framing the relevant concepts is conducted, while a clarification of nuances at important terms is attempted. Next, a tool for the investigation of the economic benefits of operating a local energy market in the context of an energy community is developed. We design the local energy market using state-of-the-art formulations, modified according to the requirements of the case study. The model is applied to an energy community that is currently under formation in a Greek municipality. From the various simulations that were conducted, a series of generalizable conclusions are extracted.


2021 ◽  
pp. 003452372198937
Author(s):  
Caroline Elbra-Ramsay

This paper reports the findings of a small-scale study seeking to investigate how student teachers, within a three-year undergraduate programme, understand feedback. Feedback has been central to debates and discussion in the assessment literature in recent years. Hence, in this paper, feedback is positioned within the often-contradictory discourses of assessment, including perspectives on student and teacher feedback. The study focused on two first year undergraduate student teachers at a small university in England and considered the relationships between their understanding of feedback as a student, their understanding of feedback as an emerging teacher, and the key influences shaping these understandings. A phenomenological case study methodology was employed with interviews as the prime method of data collection. Themes emerged as part of an Nvivo analysis, including emotional responses, relationships and dialogue, all of which appear to have impacted on the students’ conceptual understanding of feedback as indelibly shaped by its interpersonal and affective, rather than purely cognitive or ideational, dimensions. The paper therefore seeks to contribute to the wider feedback discourse by offering an analysis of empirical data. Although situated within English teacher education, there are tentative conclusions that are applicable to international teacher education and as well as higher education more generally.


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