scholarly journals Assessment of the extent of possible damage by mudfl ows to the Verkhne-Chegemskoye rural settlement (Chegem River basin, Central Caucasus)

Author(s):  
А.Х. Шерхов ◽  
З.Ж. Гергокова

Рассматриваются вопросы обеспечения безопасности территорий горных поселений и объектов инфраструктуры в условиях изменения в результате потепления климата гляциальной обстановки в верховьях селеносных рек. Представлены результаты проведенного исследования, которые показывают, что селевые риски и опасности в сложившейся обстановке не только останутся актуальными в обозримом будущем, но и, по всей вероятности, возрастут. The issues of ensuring the security of the territories of mountain settlements and infrastructure facilities, in the conditions of changes, as a result of climate warming, of the glacial situation in the upper reaches of mudfl ow rivers are considered. The results of the conducted research are presented, which show that mudfl ow risks and dangers in the current situation will not only remain relevant in the foreseeable future, but also, in all probability, will increase.

2021 ◽  
pp. 119-125
Author(s):  
A. H. SHERHOV ◽  
◽  
Z. ZH. GERGOKOVA

Changes in the glacial situation in the upper reaches of mudflow rivers that flow through the territory of mountain rural settlements as a result of climate warming contribute to an increase in mudflow risk factors. The current situation requires a review of the issues of ensuring the security of the territories of mountain settlements and infrastructure facilities. An important aspect of solving this problem is to identify areas of residential areas that are under threat of possible negative impact of dangerous slope and riverbed processes. The purpose of the presented study was to establish zones of possible damage by mudflow outflows on the territory of two mountain settlements in the Chegemsky district of Kabardino-Balkaria. The areas of possible damage were determined based on the analysis of the previous mudflow events by comparing the calculated critical volumes of mudflow outflows with morphometric parameters of the territory relief adjacent to the transit sections of mudflow channels, bridge crossings, water and mudflow structures. The results of the performed investigation show that the state and current situation of transit riverbed tracts on the territory of the villages may be inadequate for real mudflow energy. Mudslide risks and hazards in this region will not only remain relevant in the foreseeable future, but are likely to increase, they should be taken into account and it is necessary to be protected from them.


2017 ◽  
Vol 44 (8) ◽  
pp. 941-951 ◽  
Author(s):  
I. B. Rapoport ◽  
I. V. Zenkova ◽  
N. L. Tsepkova
Keyword(s):  

2019 ◽  
Vol 11 (1) ◽  
pp. 408 ◽  
Author(s):  
Franciso de Borja Langelaan Osset

Resumen: El presente trabajo se propone realizar un análisis jurisprudencial de la normativa pro­cesal en la Unión Europea aplicable a las cláusulas de jurisdicción insertas en conocimientos de em­barque. En este sentido, se estudian el art. 25 del Reglamento 1215/2012 y el art. 468 de la LENMAR, tratando los problemas procesales que ambos plantean. Por otro lado, se realiza un análisis a la luz de la jurisprudencia y doctrina anterior a la LENMAR para proyectar en el futuro la aplicabilidad real del mencionado art. 468. Este análisis se completa con una breve explicación inicial sobre el transporte de mercancías en régimen de conocimiento de embarque con el objeto de contextualizar la materia de estudio del presente trabajo.Palabras clave: cláusulas de jurisdicción, conocimiento de embarque, Reglamento 1215/2012, Ley de Navegación Marítima, art. 468 LNM.Abstract: The aim of this paper is to carry out a jurisprudential examination on the procedural Regulations applicable within the European Union to jurisdiction clauses inserted in Bills of Lading. Accordingly, art. 25 Regulation 1215/2012 and art. 468 LENMAR are studied, tackling the procedural problems that both articles raise. On another note, a scrutiny of the jurisprudence and doctrine previous to the LENMAR is carried out, so that the real enforceability of the above-mentioned art. 468 is pro­jected into the future. This inquiry is completed by an introductory explanation about the international carriage of goods by sea, so as to contextualize the subject of this paper.Keywords: jurisdiction clauses, bill of lading, UE Regulation 1215/2012, Spanish Maritime Act, art. 468 LNM.


Author(s):  
Swapnali Barman ◽  
Jaivir Tyagi ◽  
Waikhom Rahul Singh

Using remote sensing and GIS technique, we analyse the change detection of different land use/land cover (LULC) types that has taken place in Puthimari river basin during a two-decade period from 1999 to 2019. Supervised classification method with maximum likelihood algorithm have been applied to prepare the LULC maps. The LULC change detection has been performed employing a post-classification detection method. Puthimari is a north bank sub-catchment of River Brahmaputra, the northern part of which falls in Bhutan and the rest falls in the Assam state of India. The primary LULC types of the basin are, dense vegetation which is predominant in the upper catchment, crop land and rural settlement. Thus, five different classes have been considered for the analysis, viz., dense vegetation, water bodies, silted water, cropland and rural settlement. The results showed that the rural settlement and water bodies in the basin increased by 42.70% and 30.31% from 1999 to 2019. However, dense vegetation, silted water and cropland decreased by 9.24%, 27.47% and 28.10% during these two decades.


Author(s):  
Р.А. Тавасиев

В статье критически рассмотрены литературные данные по ледникам и приледниковым озерам, расположенным в бассейне реки Бартуйдон (левый приток реки Караугомдон, левый приток р. Терек) и изменениях, произо- шедших на них за последние 53 года. В 1966 г. на этой территории числилось 6 ледников и 1 озеро. Сейчас здесь 15 ледников и 6 озер. Дан прогноз возможных природных процессов, которые могут здесь произойти. The article provides a critical review of literature data on glaciers and periglacial lakes located in the Bartuydon River Basin (the left tributary of the Karaugomdon River, the left tributary of the Terek River) and the changes they have undergone over the past 53 years. In 1966 there used to be 6 glaciers and 1 lake. There are14 glaciers and 6 lakes now. The paper provides a forecast of possible natural processes that may occur here.


2020 ◽  
Vol 24 (3) ◽  
pp. 1145-1157
Author(s):  
Lu Lin ◽  
Man Gao ◽  
Jintao Liu ◽  
Jiarong Wang ◽  
Shuhong Wang ◽  
...  

Abstract. Climate warming is changing streamflow regimes and groundwater storage in cold alpine regions. In this study, the Yangbajain headwater catchment in the Lhasa River basin is adopted as the study area to assess streamflow changes and active groundwater storage in response to climate warming. The results show that both annual streamflow and the mean air temperature increase significantly at respective rates of about 12.30 mm per decade and 0.28 ∘C per decade from 1979 to 2013 in the study area. The results of gray relational analysis indicate that the air temperature acts as a primary factor for the increased streamflow. Due to climate warming, the total glacier volume has retreated by over 25 % during the past 50 years, and the areal extent of permafrost has degraded by 15.3 % over the last 20 years. Parallel comparisons with other subbasins in the Lhasa River basin indirectly reveal that the increased streamflow at the Yangbajain Station is mainly fed by the accelerated glacier retreat. Using baseflow recession analysis, we also find that the estimated groundwater storage that is comparable with the GRACE data increases significantly at rates of about 19.32 mm per decade during the abovementioned period. That is to say, as permafrost thaws, more spaces have been made available to accommodate the increasing meltwater. Finally, a large water imbalance (of more than 5.79×107 m3 a−1) between the melt-derived runoff and the actual increase in runoff as well as the groundwater storage is also observed. The results from this study suggest that the impacts of glacial retreat and permafrost degradation show compound behaviors on the storage–discharge mechanism due to climate warming, and that this fundamentally affects the water supply and the mechanisms of streamflow generation and change.


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